Results 21 to 30 of about 2,520,215 (291)

The Information Bottleneck’s Ordinary Differential Equation: First-Order Root Tracking for the Information Bottleneck

open access: yesEntropy, 2023
The Information Bottleneck (IB) is a method of lossy compression of relevant information. Its rate-distortion (RD) curve describes the fundamental tradeoff between input compression and the preservation of relevant information embedded in the input ...
Shlomi Agmon
doaj   +1 more source

Brain correlates of non-symbolic numerosity estimation in low and high mathematical ability children.

open access: yesPLoS ONE, 2009
Previous studies have implicated several brain areas as subserving numerical approximation. Most studies have examined brain correlates of adult numerical approximation and have not considered individual differences in mathematical ability.
Yulia Kovas   +7 more
doaj   +1 more source

Robust a priori and a posteriori error analysis for the approximation of Allen–Cahn and Ginzburg–Landau equations past topological changes [PDF]

open access: yes, 2010
A priori and a posteriori error estimates are derived for the numerical approximation of scalar and complex valued phase field models. Particular attention is devoted to the dependence of the estimates on a small parameter and to the validity of the ...
Rüdiger Müller   +11 more
core   +1 more source

Analytical and Numerical Monotonicity Analyses for Discrete Delta Fractional Operators

open access: yesMathematics, 2022
In this paper, first, we intend to determine the relationship between the sign of Δc0βy(c0+1), for 10 (the monotonicity of y), where Δc0βy(z) will be assumed to be negative for each z∈Nc0T:={c0,c0+1,c0+2,⋯,T} and some T∈Nc0:={c0,c0+1,c0+2,⋯}.
Kamsing Nonlaopon   +5 more
doaj   +1 more source

Numerical Scheme based on Non-polynomial Spline Functions for ‎the System of Second Order Boundary Value Problems arising in ‎Various Engineering Applications [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
Several applications of computational science and engineering, including population dynamics, optimal control, and physics, reduce to the study of a system of second-order boundary value problems.
Anju Chaurasia   +2 more
doaj   +1 more source

Explicit Solution of First-Order Differential Equation Using Aitken’s and Newton’s Interpolation Methods

open access: yesEurasian Journal of Science and Engineering, 2023
The struggle to find the analytic solution of several differential equations leads to several issues like difficulty in finding solutions, singularities, convergent issues, and stability.
Salisu Ibrahim
doaj   +1 more source

Highly Efficient Numerical Algorithm for Nonlinear Space Variable-Order Fractional Reaction–Diffusion Models

open access: yesFractal and Fractional, 2023
In this paper, we present a new highly efficient numerical algorithm for nonlinear variable-order space fractional reaction–diffusion equations. The algorithm is based on a new method developed by using the Gaussian quadrature pole rational approximation.
Muhammad Yousuf, Shahzad Sarwar
doaj   +1 more source

Are approximate number system representations numerical?

open access: yesJournal of Numerical Cognition, 2023
Previous research suggests that the Approximate Number System (ANS) allows people to approximate the cardinality of a set. This ability to discern numerical quantities may explain how meaning becomes associated with number symbols. However, recently it has been argued that ANS representations are not directly numerical, but rather are formed by ...
Pickering, Jayne   +2 more
openaire   +3 more sources

Deterministic numerical solutions of the Boltzmann equation using the fast spectral method [PDF]

open access: yes, 2013
The Boltzmann equation describes the dynamics of rarefied gas flows, but the multidimensional nature of its collision operator poses a real challenge for its numerical solution. In this paper, the fast spectral method [36], originally developed by Mouhot
White, Craig   +4 more
core   +4 more sources

Approaches to enthalpy approximation in numerical simulation of two-component alloy solidification

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The paper deals with the numerical modelling of solidification of two- component metal alloys. The numerical model was worked out using the enthalpy formulation of solidification and the finite element method.
Norbert Sczygiol
doaj  

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