Results for 'Ordinary differential equations'

999 found
Order:
  1. Solving ordinary differential equations by working with infinitesimals numerically on the Infinity Computer.Yaroslav Sergeyev - 2013 - Applied Mathematics and Computation 219 (22):10668–10681.
    There exists a huge number of numerical methods that iteratively construct approximations to the solution y(x) of an ordinary differential equation (ODE) y′(x) = f(x,y) starting from an initial value y_0=y(x_0) and using a finite approximation step h that influences the accuracy of the obtained approximation. In this paper, a new framework for solving ODEs is presented for a new kind of a computer – the Infinity Computer (it has been patented and its working prototype exists). The new (...)
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  2. Causal potency of consciousness in the physical world.Danko D. Georgiev - 2024 - International Journal of Modern Physics B 38 (19):2450256.
    The evolution of the human mind through natural selection mandates that our conscious experiences are causally potent in order to leave a tangible impact upon the surrounding physical world. Any attempt to construct a functional theory of the conscious mind within the framework of classical physics, however, inevitably leads to causally impotent conscious experiences in direct contradiction to evolution theory. Here, we derive several rigorous theorems that identify the origin of the latter impasse in the mathematical properties of ordinary (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  3.  69
    Numerical methods for solving initial value problems on the Infinity Computer.Yaroslav Sergeyev, Marat Mukhametzhanov, Francesca Mazzia, Felice Iavernaro & Pierluigi Amodio - 2016 - International Journal of Unconventional Computing 12 (1):3-23.
    New algorithms for the numerical solution of Ordinary Differential Equations (ODEs) with initial condition are proposed. They are designed for work on a new kind of a supercomputer – the Infinity Computer, – that is able to deal numerically with finite, infinite and infinitesimal numbers. Due to this fact, the Infinity Computer allows one to calculate the exact derivatives of functions using infinitesimal values of the stepsize. As a consequence, the new methods described in this paper are (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  4. Computation of higher order Lie derivatives on the Infinity Computer.Felice Iavernaro, Francesca Mazzia, Marat Mukhametzhanov & Yaroslav Sergeyev - 2021 - Journal of Computational and Applied Mathematics 383:113135.
    In this paper, we deal with the computation of Lie derivatives, which are required, for example, in some numerical methods for the solution of differential equations. One common way for computing them is to use symbolic computation. Computer algebra software, however, might fail if the function is complicated, and cannot be even performed if an explicit formulation of the function is not available, but we have only an algorithm for its computation. An alternative way to address the problem (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  5. Non-linear Analysis of Models for Biological Pattern Formation: Application to Ocular Dominance Stripes.Michael Lyons & Lionel G. Harrison - 1993 - In Frank Eeckman (ed.), Neural Systems: Analysis and Modeling. Springer. pp. 39-46.
    We present a technique for the analysis of pattern formation by a class of models for the formation of ocular dominance stripes in the striate cortex of some mammals. The method, which employs the adiabatic approximation to derive a set of ordinary differential equations for patterning modes, has been successfully applied to reaction-diffusion models for striped patterns [1]. Models of ocular dominance stripes have been studied [2,3] by computation, or by linearization of the model equations. These (...)
    Download  
     
    Export citation  
     
    Bookmark  
  6. Remarks on the Geometry of Complex Systems and Self-Organization.Luciano Boi - 2012 - In Vincenzo Fano, Enrico Giannetto, Giulia Giannini & Pierluigi Graziani (eds.), Complessità e Riduzionismo. ISONOMIA - Epistemologica Series Editor. pp. 28-43.
    Let us start by some general definitions of the concept of complexity. We take a complex system to be one composed by a large number of parts, and whose properties are not fully explained by an understanding of its components parts. Studies of complex systems recognized the importance of “wholeness”, defined as problems of organization (and of regulation), phenomena non resolvable into local events, dynamics interactions in the difference of behaviour of parts when isolated or in higher configuration, etc., in (...)
    Download  
     
    Export citation  
     
    Bookmark  
  7. Geometry for a Brain. Optimal Control in a Network of Adaptive Memristors.Ignazio Licata & Germano Resconi - 2013 - Adv. Studies Theor. Phys., (no.10):479-513.
    In the brain the relations between free neurons and the conditioned ones establish the constraints for the informational neural processes. These constraints reflect the systemenvironment state, i.e. the dynamics of homeocognitive activities. The constraints allow us to define the cost function in the phase space of free neurons so as to trace the trajectories of the possible configurations at minimal cost while respecting the constraints imposed. Since the space of the free states is a manifold or a non orthogonal space, (...)
    Download  
     
    Export citation  
     
    Bookmark  
  8. Triangular functions of Al-Tememe Acceleration Methods of First Kind for Improving the Values of Integrals Numerically.Ali Hassan Mohammed & Asmahan Abed Yasir - 2019 - International Journal of Engineering and Information Systems (IJEAIS) 3 (4):60-65.
    Abstract: The main aim of this work is to introduce acceleration methods called a Trigonometric acceleration methods which are of series of numerated methods. In general, these methods named as AL-Tememe’s acceleration methods of first kind to his discoverer ''Ali Hassan Mohammed''. These are very beneficial to acceleration the numerical results for definite integrations with continuous integrands which are of 2nd order main error, with respect to the accuracy and the number of the used subintervals and the fasting obtaining results. (...)
    Download  
     
    Export citation  
     
    Bookmark  
  9.  48
    Hyperbolic Functions of Al-Tememe Acceleration Methods for Improving the Values of Integrations Numerically of First Kind.Ali Hassan Mohammed & Asmahan Abed Yasir - 2019 - International Journal of Engineering and Information Systems (IJEAIS) 3 (5):11-15.
    Abstract: The main aim of this work is to introduce acceleration methods called a hyperbolic acceleration methods which are of series of numerated methods. In general, these methods named as AL-Tememe’s acceleration methods of first kind discovered by (Ali Hassan Mohammed). These are very beneficial to acceleration the numerical results for definite integrations with continuous integrands which are of 2nd order main error, with respect to the accuracy and the number of the used subintervals and the fasting obtaining results. Especially, (...)
    Download  
     
    Export citation  
     
    Bookmark  
  10.  89
    Is Time Travel Too Strange to Be Possible? - Determinism and Indeterminism on Closed Timelike Curves.Ruward A. Mulder & Dennis Dieks - 2017 - In Anguel S. Stefanov & Marco Giovanelli (eds.), General Relativity 1916 - 2016. Minkowski Institute Press. pp. 93-114.
    Notoriously, the Einstein equations of general relativity have solutions in which closed timelike curves occur. On these curves time loops back onto itself, which has exotic consequences: for example, traveling back into one's own past becomes possible. However, in order to make time travel stories consistent constraints have to be satisfied, which prevents seemingly ordinary and plausible processes from occurring. This, and several other "unphysical" features, have motivated many authors to exclude solutions with CTCs from consideration, e.g. by (...)
    Download  
     
    Export citation  
     
    Bookmark  
  11. Who am I?: Identity, Evaluation, and Differential Equations.Laura Alba-Juez & Félix Alba-Juez - 2012 - Pragmatics and Cognition 20 (3):570-592.
    In this paper we study the connection between the use of evaluative language and the building of both personal and social identities, from the perspective of Dynamical System Theory. We primarily discuss two issues: 1) The use of evaluation ) as a means to the construction of both individual and group identities, thus exploring how the connection between linguistic choices and social identities is shaped by interactional needs for stancetaking. In order to illustrate this connection, we examine examples of the (...)
    Download  
     
    Export citation  
     
    Bookmark  
  12. The General Solution for a linear Second Order Homogenous Differential Equations with Variable Coefficients.Rehab A. Shaaban - 2019 - International Journal of Engineering and Information Systems (IJEAIS) 3 (4):16-25.
    Abstract : The main goal in this work to find the general solution for some kind of linear second order homogenous differential equations with variable coefficients which have the general form , by using the substitution ,which transform form the above equation to Riccati equation .
    Download  
     
    Export citation  
     
    Bookmark  
  13.  92
    Structural equations and beyond.Franz Huber - 2013 - Review of Symbolic Logic 6 (4):709-732.
    Recent accounts of actual causation are stated in terms of extended causal models. These extended causal models contain two elements representing two seemingly distinct modalities. The first element are structural equations which represent the or mechanisms of the model, just as ordinary causal models do. The second element are ranking functions which represent normality or typicality. The aim of this paper is to show that these two modalities can be unified. I do so by formulating two constraints under (...)
    Download  
     
    Export citation  
     
    Bookmark   16 citations  
  14. Differential Item Functioning of 2018 Basic Education Certificate Examination (BECE) in Mathematics: A Comparative Study of Male and Female Candidates.Ememobong Mfon Ekong, Isaac Ofem Ubi & Eni Iferi Eni - 2020 - International Journal of Educational Administration, Planning and Research 12 (1):57-65.
    The study examined the differential item functioning (DIF) of 2018 Basic Education Certificate examination (BECE) in Mathematics tests of National Examination Council (NECO) and BECE of Akwa Ibom State government in Nigeria. The invariance in the tests with regards to sex was considered using Item Response Theory (IRT) approach. The study area was Akwa Ibom state of Nigeria having a student population of 58,281 for the examination. The sample was made of up 3810 students drawn through a multi-stage sampling (...)
    Download  
     
    Export citation  
     
    Bookmark  
  15. Black-Scholes PDE: A Finance Application.Quan-Hoang Vuong - 2001 - In International Conference on Differential Equations, Approximations and Applications, DEAA - 2001. pp. 53-53.
    This is a collection of the abstracts of lectures given at the International Conference on Differential Equations, Approximations and Applications, which will be held at the old campus of the Vietnam National University at Hanoi December 10-15, 2001.
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  16. Global and local.James Franklin - 2014 - Mathematical Intelligencer 36 (4).
    The global/local contrast is ubiquitous in mathematics. This paper explains it with straightforward examples. It is possible to build a circular staircase that is rising at any point (locally) but impossible to build one that rises at all points and comes back to where it started (a global restriction). Differential equations describe the local structure of a process; their solution describes the global structure that results. The interplay between global and local structure is one of the great themes (...)
    Download  
     
    Export citation  
     
    Bookmark   3 citations  
  17.  64
    The Equating of the Unequal.Bernhard Waldenfels & John Krummel - 2015 - Social Imaginaries 1 (2):92-102.
    This is an English translation of Waldenfels' German essay: Equality and inequality are basic elements of law, justice and politics. Equality integrates each of us into a common sphere by distributing rights, duties and chances among us. Equality turns into mere indifference as far as we get overintegrated into social orders. When differences are fading away experience loses its relief and individuals lose their face. Our critical reflections start from the inevitable paradox of making equal what is not equal. In (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  18.  71
    Einstein's gravitation is Einstein-Grossmann's equations.Alfonso Leon Guillen Gomez - 2015 - Journal of Advances in Physics 11 (3):3099-3110.
    While the philosophers of science discuss the General Relativity, the mathematical physicists do not question it. Therefore, there is a conflict. From the theoretical point view “the question of precisely what Einstein discovered remains unanswered, for we have no consensus over the exact nature of the theory 's foundations. Is this the theory that extends the relativity of motion from inertial motion to accelerated motion, as Einstein contended? Or is it just a theory that treats gravitation geometrically in the spacetime (...)
    Download  
     
    Export citation  
     
    Bookmark  
  19. Colombeau solutions to Einstein field equations.Gravitational singularities.Jaykov Foukzon - manuscript
    In contemporary mathematics, a Colombeau algebra of Colombeau generalized functions is an algebra of a certain kind containing the space of Schwartz distributions. While in classical distribution theory a general multiplication of distributions is not possible, Colombeau algebras provide a rigorous framework for this. Remark 1.1.1.Such a multiplication of distributions has been a long time mistakenly believed to be impossible because of Schwartz’ impossibility result, which basically states that there cannot be a differential algebra containing the space of distributions (...)
    Download  
     
    Export citation  
     
    Bookmark  
  20. On the Incompatibility of Dynamical Biological Mechanisms and Causal Graphs.Marcel Weber - 2016 - Philosophy of Science 83 (5):959-971.
    I examine to what extent accounts of mechanisms based on formal interventionist theories of causality can adequately represent biological mechanisms with complex dynamics. Using a differential equation model for a circadian clock mechanism as an example, I first show that there exists an iterative solution that can be interpreted as a structural causal model. Thus, in principle, it is possible to integrate causal difference-making information with dynamical information. However, the differential equation model itself lacks the right modularity properties (...)
    Download  
     
    Export citation  
     
    Bookmark   9 citations  
  21. Thick Presentism and Newtonian Mechanics.Ihor Lubashevsky - 2016 - Http://Arxiv.Org.
    In the present paper I argue that the formalism of Newtonian mechanics stems directly from the general principle to be called the principle of microlevel reducibility which physical systems obey in the realm of classical physics. This principle assumes, first, that all the properties of physical systems must be determined by their states at the current moment of time, in a slogan form it is ``only the present matters to physics.'' Second, it postulates that any physical system is nothing but (...)
    Download  
     
    Export citation  
     
    Bookmark  
  22. Pynchon’s Against the Day: Bilocation, Duplication, and Differential Repetition.Ali Salami & Razieh Rahmani - 2018 - ACADEMY PUBLICATION 9 (5):953-960.
    In Against the Day, Pynchon is obsessed with twoness, double worlds, as well as dual realities, and like Deleuze’s concept of repetition, these duplications and twinships are not merely repetition of the same, rather they allow for creativity, reinvention, and becoming. Pynchon’s duplication of fictional and spectral characters intends to critique the notion of identity as does Deleuzian concept of repetition. Not attached to the representational concept of identity as the recurrence of the same, Pynchon’s duplications decenter the transcendental concept (...)
    Download  
     
    Export citation  
     
    Bookmark  
  23. Is Intelligence Non-Computational Dynamical Coupling?Jonathan Simon - 2024 - Cosmos+Taxis 12 (5+6):23-36.
    Is the brain really a computer? In particular, is our intelligence a computational achievement: is it because our brains are computers that we get on in the world as well as we do? In this paper I will evaluate an ambitious new argument to the contrary, developed in Landgrebe and Smith (2021a, 2022). Landgrebe and Smith begin with the fact that many dynamical systems in the world are difficult or impossible to model accurately (inter alia, because it is intractable to (...)
    Download  
     
    Export citation  
     
    Bookmark  
  24. Complexity Reality and Scientific Realism.Avijit Lahiri - manuscript
    We introduce the notion of complexity, first at an intuitive level and then in relatively more concrete terms, explaining the various characteristic features of complex systems with examples. There exists a vast literature on complexity, and our exposition is intended to be an elementary introduction, meant for a broad audience. -/- Briefly, a complex system is one whose description involves a hierarchy of levels, where each level is made of a large number of components interacting among themselves. The time evolution (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  25. Strategies of Explanatory Abstraction in Molecular Systems Biology.Nicholaos Jones - 2018 - Philosophy of Science 85 (5):955-968.
    I consider three explanatory strategies from recent systems biology that are driven by mathematics as much as mechanistic detail. Analysis of differential equations drives the first strategy; topological analysis of network motifs drives the second; mathematical theorems from control engineering drive the third. I also distinguish three abstraction types: aggregations, which simplify by condensing information; generalizations, which simplify by generalizing information; and structurations, which simplify by contextualizing information. Using a common explanandum as reference point—namely, the robust perfect adaptation (...)
    Download  
     
    Export citation  
     
    Bookmark   3 citations  
  26.  75
    Thermal stability of solitons in protein α-helices.Danko D. Georgiev & James F. Glazebrook - 2022 - Chaos, Solitons and Fractals 155:111644.
    Protein α-helices provide an ordered biological environment that is conducive to soliton-assisted energy transport. The nonlinear interaction between amide I excitons and phonon deformations induced in the hydrogen-bonded lattice of peptide groups leads to self-trapping of the amide I energy, thereby creating a localized quasiparticle (soliton) that persists at zero temperature. The presence of thermal noise, however, could destabilize the protein soliton and dissipate its energy within a finite lifetime. In this work, we have computationally solved the system of stochastic (...)
    Download  
     
    Export citation  
     
    Bookmark  
  27. When Fields Are Not Degrees of Freedom.Vera Hartenstein & Mario Hubert - 2021 - British Journal for the Philosophy of Science 72 (1):245-275.
    We show that in the Maxwell–Lorentz theory of classical electrodynamics most initial values for fields and particles lead to an ill-defined dynamics, as they exhibit singularities or discontinuities along light-cones. This phenomenon suggests that the Maxwell equations and the Lorentz force law ought rather to be read as a system of delay differential equations, that is, differential equations that relate a function and its derivatives at different times. This mathematical reformulation, however, leads to physical and (...)
    Download  
     
    Export citation  
     
    Bookmark   5 citations  
  28. Does General Relativity Highlight Necessary Connections in Nature?Antonio Vassallo - 2021 - Synthese 199 (1-2):1-23.
    The dynamics of general relativity is encoded in a set of ten differential equations, the so-called Einstein field equations. It is usually believed that Einstein's equations represent a physical law describing the coupling of spacetime with material fields. However, just six of these equations actually describe the coupling mechanism: the remaining four represent a set of differential relations known as Bianchi identities. The paper discusses the physical role that the Bianchi identities play in general (...)
    Download  
     
    Export citation  
     
    Bookmark  
  29.  71
    Laplacian growth without surface tension in filtration combustion: Analytical pole solution.Oleg Kupervasser - 2016 - Complexity 21 (5):31-42.
    Filtration combustion is described by Laplacian growth without surface tension. These equations have elegant analytical solutions that replace the complex integro-differential motion equations by simple differential equations of pole motion in a complex plane. The main problem with such a solution is the existence of finite time singularities. To prevent such singularities, nonzero surface tension is usually used. However, nonzero surface tension does not exist in filtration combustion, and this destroys the analytical solutions. However, a (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  30.  90
    Equilibrium explanation as structural non-mechanistic explanation: The case long-term bacterial persistence in human hosts.Javier Suárez & Roger Deulofeu - 2019 - Teorema: International Journal of Philosophy 3 (38):95-120.
    Philippe Huneman has recently questioned the widespread application of mechanistic models of scientific explanation based on the existence of structural explanations, i.e. explanations that account for the phenomenon to be explained in virtue of the mathematical properties of the system where the phenomenon obtains, rather than in terms of the mechanisms that causally produce the phenomenon. Structural explanations are very diverse, including cases like explanations in terms of bowtie structures, in terms of the topological properties of the system, or in (...)
    Download  
     
    Export citation  
     
    Bookmark   5 citations  
  31. From metaphysical principles to dynamical laws.Marius Stan - 2021 - In David Marshall Miller & Dana Jalobeanu (eds.), The Cambridge History of Philosophy of the Scientific Revolution. New York, NY: Cambridge University Press. pp. 387-405.
    My thesis in this paper is: the modern concept of laws of motion—qua dynamical laws—emerges in 18th-century mechanics. The driving factor for it was the need to extend mechanics beyond the centroid theories of the late-1600s. The enabling result behind it was the rise of differential equations. -/- In consequence, by the mid-1700s we see a deep shift in the form and status of laws of motion. The shift is among the critical inflection points where early modern mechanics (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  32. Beyond Desartes and Newton: Recovering life and humanity.Stuart A. Kauffman & Arran Gare - 2015 - Progress in Biophysics and Molecular Biology 119 (3):219-244.
    Attempts to ‘naturalize’ phenomenology challenge both traditional phenomenology and traditional approaches to cognitive science. They challenge Edmund Husserl’s rejection of naturalism and his attempt to establish phenomenology as a foundational transcendental discipline, and they challenge efforts to explain cognition through mainstream science. While appearing to be a retreat from the bold claims made for phenomenology, it is really its triumph. Naturalized phenomenology is spearheading a successful challenge to the heritage of Cartesian dualism. This converges with the reaction against Cartesian thought (...)
    Download  
     
    Export citation  
     
    Bookmark   9 citations  
  33. Humeanism and Exceptions in the Fundamental Laws of Physics.Billy Wheeler - 2017 - Principia: An International Journal of Epistemology 21 (3):317-337.
    It has been argued that the fundamental laws of physics do not face a ‘problem of provisos’ equivalent to that found in other scientific disciplines (Earman, Roberts and Smith 2002) and there is only the appearance of exceptions to physical laws if they are confused with differential equations of evolution type (Smith 2002). In this paper I argue that even if this is true, fundamental laws in physics still pose a major challenge to standard Humean approaches to lawhood, (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  34. Discrete and continuous: a fundamental dichotomy in mathematics.James Franklin - 2017 - Journal of Humanistic Mathematics 7 (2):355-378.
    The distinction between the discrete and the continuous lies at the heart of mathematics. Discrete mathematics (arithmetic, algebra, combinatorics, graph theory, cryptography, logic) has a set of concepts, techniques, and application areas largely distinct from continuous mathematics (traditional geometry, calculus, most of functional analysis, differential equations, topology). The interaction between the two – for example in computer models of continuous systems such as fluid flow – is a central issue in the applicable mathematics of the last hundred years. (...)
    Download  
     
    Export citation  
     
    Bookmark   3 citations  
  35. Deleuze’s Elaboration of Eternity: Ontogenesis and Multiplicity.Rob Luzecky - 2022 - Deleuze and Guattari Studies 16 (1):51-72.
    I demonstrate that Deleuze's identification of Aion as an empty form offers a fascinating model of temporality that prioritises variation. First, I suggest that Deleuze's identification of time as an empty form is supported by ancient Greek and Gnostic concepts of the relation of Aion and Chronos. From Plato, through Aristotle, to Plotinus the concept of time undergoes substantive revision, in the sense that temporal measurement becomes removed from the measurement of existent entities. This gradual untethering of time from movement (...)
    Download  
     
    Export citation  
     
    Bookmark  
  36. From the History of Physics to the Discovery of the Foundations of Physics,.Antonino Drago - manuscript
    FROM THE HISTORY OF PHYSICS TO THE DISCOVERY OF THE FOUNDATIONS OF PHYSICS By Antonino Drago, formerly at Naples University “Federico II”, Italy – drago@unina,.it (Size : 391.800 bytes 75,400 words) The book summarizes a half a century author’s work on the foundations of physics. For the forst time is established a level of discourse on theoretical physics which at the same time is philosophical in nature (kinds of infinity, kinds of organization) and formal (kinds of mathematics, kinds of logic). (...)
    Download  
     
    Export citation  
     
    Bookmark  
  37. Laws of Thought and Laws of Logic after Kant.Lydia Patton - 2018 - In Sandra Lapointe (ed.), Logic from Kant to Russell. New York: Routledge. pp. 123-137.
    George Boole emerged from the British tradition of the “New Analytic”, known for the view that the laws of logic are laws of thought. Logicians in the New Analytic tradition were influenced by the work of Immanuel Kant, and by the German logicians Wilhelm Traugott Krug and Wilhelm Esser, among others. In his 1854 work An Investigation of the Laws of Thought on Which are Founded the Mathematical Theories of Logic and Probabilities, Boole argues that the laws of thought acquire (...)
    Download  
     
    Export citation  
     
    Bookmark  
  38. Spatial opinion dynamics and the effects of two types of mixing.Bert Baumgaertner, Peter A. Fetros, Stephen M. Krone & Rebecca T. Tyson - 2018 - Physical Review E 98 (2):022310.
    Spatially situated opinions that can be held with different degrees of conviction lead to spatiotemporal patterns such as clustering (homophily), polarization, and deadlock. Our goal is to understand how sensitive these patterns are to changes in the local nature of interactions. We introduce two different mixing mechanisms, spatial relocation and nonlocal interaction (“telephoning”), to an earlier fully spatial model (no mixing). Interestingly, the mechanisms that create deadlock in the fully spatial model have the opposite effect when there is a sufficient (...)
    Download  
     
    Export citation  
     
    Bookmark  
  39.  70
    A class of reaction-diffusion mechanisms which preferentially select striped patterns.Michael Lyons & Lionel G. Harrison - 1991 - Chemical Physics Letters 183 (1,2):158-164.
    Reaction-diffusion systems which have reaction term satisfying f(-q) = -f(q) tend strongly to form striped patterns. Haken’s slaving principle is used to derive differential equations for unstable mode amplitudes close to the Turing instability. This connects a dynamical symmetry to pattern selection, with possible relevance to biological and chemical pattern-forming phenomena.
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  40.  62
    A OPORTUNIDADE DE LEITURA DIGITAL DAS OBRAS MATEMÁTICAS DE RIEMANN. [REVIEW]Omar Aly - manuscript
    This paper is trying to show the significance for science history studies of the internet´s access to rare books each time more easier; it was choiced the work of one of the most important and influent mathematicians, Georg Friedrich Bernhard Riemann (1826-1866), “Oeuvres Mathématiques”, composed with published memories during Riemann´s life, and posthumously published memories and fragments. It was been analised and commented the posthumous memory about the hypothesis which serve to geometry basis, fundamental on modern sciences, as Riemann´s space (...)
    Download  
     
    Export citation  
     
    Bookmark  
  41. Note on Triple Aboodh Transform and Its Application.T. ÖZIS S. Alfaqeih - 2019 - IJEAIS 3 (3):1-7.
    Abstract— In this paper, we introduce the definition of triple Aboodh transform, some properties for the transform are presented. Furthermore, several theorems dealing with the properties of the triple Aboodh transform are proved. In addition, we use this transform to solve partial differential equations with integer and non-integer orders.
    Download  
     
    Export citation  
     
    Bookmark  
  42. Relative and Logarthmic of AI-Tememe Acceleration Methods for Improving the Values of Integrations Numerically of Second Kind.Ali Hassan Mohammed & Shatha Hadier Theyab - 2019 - International Journal of Engineering and Information Systems (IJEAIS) 3 (5):1-9.
    Abstract: The aims of this study are to introduce acceleration methods that called relative and algorithmic acceleration methods, which we generally call Al-Tememe's acceleration methods of the second kind discovered by (Ali Hassan Mohammed). It is very useful to improve the numerical results of continuous integrands in which the main error is of the 4th order, and related to accuracy, the number of used partial intervals and how fast to get results especially to accelerate the results got by Simpson's method. (...)
    Download  
     
    Export citation  
     
    Bookmark  
  43. Triangular Acceleration Methods of Second Kind for Improving the Values of Integrals Numerically.Ali Hassan Mohammed & Shatha Hadier Theyab - 2019 - International Journal of Engineering and Information Systems (IJEAIS) 3 (4):45-60.
    Abstract: The aims of this study are to introduce acceleration methods that are called triangular acceleration methods, which come within the series of several acceleration methods that generally known as Al-Tememe's acceleration methods of the second kind which are discovered by (Ali Hassan Mohammed). These methods are useful in improving the results of determining numerical integrals of continuous integrands where the main error is of the forth order with respect to accuracy, partial intervals and the fasting of calculating the results (...)
    Download  
     
    Export citation  
     
    Bookmark  
  44. The Qualitative Character of Spatial Perception.Douglas B. Meehan - 2007 - Dissertation, Graduate Center, City University of New York
    Ordinary perceiving relies heavily on our sensing the spatial properties of objects, e.g., their shapes, sizes, and locations. Such spatial perception is central in everyday life. We safely cross a street by seeing and hearing the locations of oncoming vehicles. And we often identify objects by seeing and feeling their distinctive shapes. -/- To understand how we perceive spatial properties, we must explain the nature of the mental states figuring in spatial perception. The experience one has when seeing a (...)
    Download  
     
    Export citation  
     
    Bookmark   3 citations  
  45. The skeptical import of motivated reasoning: A closer look at the evidence.Maarten van Doorn - 2023 - Thinking and Reasoning 1 (1):1-31.
    Central to many discussions of motivated reasoning is the idea that it runs afoul of epistemic normativity. Reasoning differently about information supporting our prior beliefs versus information contradicting those beliefs, is frequently equated with motivated irrationality. By analyzing the normative status of belief polarization, selective scrutiny, biased assimilation and the myside bias, I show this inference is often not adequately supported. Contrary to what’s often assumed, these phenomena need not indicate motivated irrationality, even though they are instances of belief-consistent information (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  46. Scrutiny of Droste’s Original Solution (1917).Mohamed Elmansour Hassani - manuscript
    In 1916, Johannes Droste independently found an exact (vacuum) solution to the Einstein's (gravitational) field equations in empty space. Droste's solution is quasi-comparable to Schwarzschild's one . Droste published his paper entitled “The field of a single centre in Einstein's theory of gravitation, and the motion of a particle in that fieldˮ. The paper communicated (in the meeting of May 27, 1916) by Prof. H.A. Lorentz, and published in ʻProceedings of the Royal Netherlands Academy of Arts and Science. 19 (...)
    Download  
     
    Export citation  
     
    Bookmark  
  47. Explanation, Enaction and Naturalised Phenomenology.Marilyn Stendera - 2022 - Phenomenology and the Cognitive Sciences 22 (3):599-619.
    This paper explores the implications of conceptualising phenomenology as explanatory for the ongoing dialogue between the phenomenological tradition and cognitive science, especially enactive approaches to cognition. The first half of the paper offers three interlinked arguments: Firstly, that differentiating between phenomenology and the natural sciences by designating one as descriptive and the other as explanatory undermines opportunities for the kind of productive friction that is required for genuine ‘mutual enlightenment’. Secondly, that conceiving of phenomenology as descriptive rather than explanatory risks (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  48. Reporting and Interpreting Intentions in Defamation Law.Fabrizio Macagno - 2015 - In Alessandro Capone, Ferenc Kiefer & Franco Lo Piparo (eds.), Indirect Reports and Pragmatics. Cham: Imprint: Springer. pp. 593-619.
    The interpretation and the indirect reporting of a speaker’s communicative intentions lie at the crossroad between pragmatics, argumentation theory, and forensic linguistics. Since the leading case Masson v. New Yorker Magazine, Inc., in the United States the legal problem of determining the truth of a quotation is essentially equated with the correctness of its indirect reporting, i.e. the representation of the speaker’s intentions. For this reason, indirect reports are treated as interpretations of what the speaker intends to communicate. Theoretical considerations, (...)
    Download  
     
    Export citation  
     
    Bookmark   3 citations  
  49.  83
    Multiple reference and vague objects.Giovanni Merlo - 2017 - Synthese 194 (7):2645-2666.
    Kilimanjaro is an example of what some philosophers would call a ‘vague object’: it is only roughly 5895 m tall, its weight is not precise and its boundaries are fuzzy because some particles are neither determinately part of it nor determinately not part of it. It has been suggested that this vagueness arises as a result of semantic indecision: it is because we didn’t make up our mind what the expression “Kilimanjaro” applies to that we can truthfully say such things (...)
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  50. Envy in Logic-Based Therapy.Ivan Guajardo - 2022 - International Journal of Philosophical Practice 8 (1):138-154.
    Contemporary research offers a more compelling account on the complex emotion of envy than the traditional view of envy as simply something bad. This essay explains how Logic-Based Therapy can use this account to coach individuals struggling with negative species of envy. Given that jealousy and envy are often equated, the essay differentiates the two; explains the conditions that make the four species of envy possible; identifies cardinal fallacies associated with negative species of envy; proposes counteractive virtues, and describes ways (...)
    Download  
     
    Export citation  
     
    Bookmark  
1 — 50 / 999