Results 31 to 40 of about 292,283 (278)

Finite difference approximations for a class of non-local parabolic equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
In this paper we study finite difference procedures for a class of parabolic equations with non-local boundary condition. The semi-implicit and fully implicit backward Euler schemes are studied.
Yanping Lin   +2 more
doaj   +1 more source

On the strict monotonicity of the first eigenvalue of the 𝑝-Laplacian on annuli

open access: yesTransactions of the American Mathematical Society, 2018
Let B 1 B_1 be a ball in
Anoop, T.V.   +2 more
openaire   +4 more sources

Minimal wave speed of traveling wavefronts in delayed Belousov-Zhabotinskii model

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
This paper is concerned with the traveling wavefronts of Belousov-Zhabotinskii model with time delay. By constructing proper upper and lower solutions and applying the theory of asymptotic spreading, the minimal wave speed is obtained under the weaker ...
Shuxia Pan, Jie Liu
doaj   +1 more source

Critical remarks on "Existence of the solution to second order differential equation through fixed point results for nonlinear F-contractions involving ω0-distance"

open access: yesVojnotehniÄŤki Glasnik, 2023
Introduction/purpose: In this paper, several critical remarks are presented concerning the paper of Iqbal & Rizwan: Existence of the solution to second order differential equation through fixed point results for nonlinear F-contractions involving w0 ...
Zoran Kadelburg   +3 more
doaj   +1 more source

Criteria for strict monotonicity of the mixed volume of convex polytopes [PDF]

open access: yesAdvances in Geometry, 2019
Abstract Let P 1, …, Pn and Q 1, …, Qn be convex polytopes in ℝ n with Pi ⊆ Qi . It is well-known that the mixed volume is monotone: V(P 1, …, Pn ) ≤ V ...
Bihan, Frédéric, Soprunov, Ivan
openaire   +4 more sources

δ-Cut Decision-Theoretic Rough Set Approach: Model and Attribute Reductions

open access: yesThe Scientific World Journal, 2014
Decision-theoretic rough set is a quite useful rough set by introducing the decision cost into probabilistic approximations of the target. However, Yao’s decision-theoretic rough set is based on the classical indiscernibility relation; such a relation ...
Hengrong Ju   +5 more
doaj   +1 more source

Some Qualitative Properties of Traveling Wave Fronts of Nonlocal Diffusive Competition-Cooperation Systems of Three Species with Delays

open access: yesComplexity, 2020
This paper is concerned with nonlocal diffusion systems of three species with delays. By modified version of Ikehara’s theorem, we prove that the traveling wave fronts of such system decay exponentially at negative infinity, and one component of such ...
Meiping Yao, Pengzhi Qiao, Yang Wang
doaj   +1 more source

Algebraic Systems with Positive Coefficients and Positive Solutions

open access: yesMathematics, 2022
The paper is devoted to the existence, uniqueness and nonuniqueness of positive solutions to nonlinear algebraic systems of equations with positive coefficients.
Ana Maria Acu   +2 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

A Variational Characterization of Reflexivity and Strict Convexity [PDF]

open access: yes, 1999
In this paper we give a variational characterization of reflexivity and strict convexity which is related to James and Krein theorems in Geometry of Banach ...
Dragomir, Sever S
core   +6 more sources

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