Results 1 to 10 of about 2,699 (102)
New Positive Solutions of Nonlinear Elliptic PDEs [PDF]
Applied Sciences (Switzerland), 2020 We are concerned with positive solutions of two types of nonlinear elliptic boundary value problems (BVPs). We present conditions for existence, uniqueness and multiple positive solutions of a first type of elliptic BVPs. For a second type of elliptic BVPs, we obtain conditions for existence and uniqueness of positive global solutions.
Mustafa İnç +2 more
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On the growth of positive entire solutions of elliptic PDEs and their gradients
Discrete and Continuous Dynamical Systems - Series S, 2014 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Antonio Vitolo
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Globally Positive Solutions of Linear Parabolic PDEs of Second Order with Robin Boundary Conditions
Journal of Mathematical Analysis and Applications, 1997 11 pages.
Janusz Mierczyński
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Determinism, well-posedness, and applications of the ultrahyperbolic wave equation in spacekime
Partial Differential Equations in Applied Mathematics, 2022 Spatiotemporal dynamics of many natural processes, such as elasticity, heat propagation, sound waves, and fluid flows are often modeled using partial differential equations (PDEs).
Yuxin Wang +3 more
doaj +1 more source
Fractal and Fractional, 2021 Fractional-order mathematical modelling of physical phenomena is a hot topic among various researchers due to its many advantages over positive integer mathematical modelling.
Arfan Ali +3 more
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On fixed point index theory for the sum of operators and applications to a class of ODEs and PDEs
Applied General Topology, 2021 The aim of this work is two fold: first we extend some results concerning the computation of the fixed point index for the sum of an expansive mapping and a $k$-set contraction obtained in \cite{DjebaMeb, Svet-Meb}, to the case of the sum $T+F ...
Svetlin Georgiev Georgiev +1 more
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A Reliable Computational Scheme for Stochastic Reaction–Diffusion Nonlinear Chemical Model
Axioms, 2023 The main aim of this contribution is to construct a numerical scheme for solving stochastic time-dependent partial differential equations (PDEs). This has the advantage of solving problems with positive solutions.
Muhammad Shoaib Arif +2 more
doaj +1 more source
On the positivity of solutions of systems of stochastic PDEs [PDF]
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2012 AbstractWe study the positivity of solutions of a class of semi‐linear parabolic systems of stochastic partial differential equations by considering random approximations. For the family of random approximations we derive explicit necessary and sufficient conditions such that the solutions preserve positivity.
J. Cresson, M. Efendiev, Stefanie Sonner
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Fractal and Fractional, 2022 In this paper, we propose a modified fractional diffusive SEAIR epidemic model with a nonlinear incidence rate. A constructed model of fractional partial differential equations (PDEs) is more general than the corresponding model of fractional ordinary ...
Yasir Nawaz +2 more
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Fourier Transform on the Homogeneous Space of 3D Positions and Orientations for Exact Solutions to Linear PDEs [PDF]
Entropy, 2019 Fokker–Planck PDEs (including diffusions) for stable Lévy processes (including Wiener processes) on the joint space of positions and orientations play a major role in mechanics, robotics, image analysis, directional statistics and probability theory.
Remco Duits +2 more
openaire +6 more sources