Results 1 to 10 of about 310,792 (316)
Existence of Solutions for a Baby-Skyrme Model [PDF]
Journal of Applied Mathematics, 2014 The existence of the energy-minimizing solutions for a baby-Skyrme model on the sphere is proved using variational method. Some properties of the solutions are also established.
Hongan Hu, Kunlin Hu
doaj +4 more sources
On the Existence of Singular Solutions [PDF]
gmj, 2001 Abstract Sufficient conditions are given, under which the equation 𝑦(𝑛) = ƒ(𝑡, 𝑦, 𝑦′, . . . , 𝑦(𝑙))𝑔(𝑦(𝑛 – 1)) has a singular solution 𝑦[𝑇, τ) → 𝐑, τ < ∞ satisfying , 𝑖 = 0, 1, . . . , 𝑙 and for 𝑗 = 𝑙 + 1, . . . , 𝑛 – 1 where 𝑙 ∈ {0, 1, . . . , 𝑛 – 2}.
Bartušek, M., Osička, J.
openaire +2 more sources
On a System of Sequential Caputo Fractional Differential Equations with Nonlocal Boundary Conditions
Fractal and Fractional, 2023 We obtain existence and uniqueness results for the solutions of a system of Caputo fractional differential equations which contain sequential derivatives, integral terms, and two positive parameters, supplemented with general coupled Riemann–Stieltjes ...
Alexandru Tudorache, Rodica Luca
doaj +1 more source
Existence and solution methods for equilibria [PDF]
European Journal of Operational Research, 2013 Equilibrium problems provide a mathematical framework which includes optimization, variational inequalities, fixed-point and saddle point problems, and noncooperative games as particular cases. This general format received an increasing interest in the last decade mainly because many theoretical and algorithmic results developed for one of these models
BIGI, GIANCARLO +3 more
openaire +4 more sources
Mathematical Challenges in the Theory of Chemotaxis
Annales Mathematicae Silesianae, 2018 We consider the simplest parabolic-elliptic model of chemotaxis in the whole space and in several space dimensions. Criteria either for the existence of radial global-in-time solutions or their blowup in terms of suitable Morrey spaces norms are ...
Biler Piotr
doaj +1 more source
On the existence of Canard solutions [PDF]
Publicacions Matemàtiques, 2000 We study the existence of global canard surfaces for a wide class of real singular perturbation problems. These surfaces define families of solutions which remain near the slow curve as the singular parameter goes to zero.
openaire +5 more sources
Local existence for a general model of size-dependent population dynamics
Abstract and Applied Analysis, 1997 We shall investigate a size structured population dynamics with aging and birth functions having general forms. The growth rate we deal with depends not only on the size but also on time.
Nobuyuki Kato, Hiroyuki Torikata
doaj +1 more source
Existence of solutions for 4p-order PDES
Moroccan Journal of Pure and Applied Analysis, 2022 In this paper, we study the following nonlinear eigenvalue problem: {Δ2pu=λm(x)u in Ω,u=Δu=…Δ2p−1u=0 on ∂Ω.\left\{ {\matrix{ {{\Delta ^{2p}}u = \lambda m\left( x \right)u\,\,\,in\,\,\Omega ,} \cr {u = \Delta u = \ldots {\Delta ^{2p - 1}}u =
Moradi F. +3 more
doaj +1 more source
Existence Analysis of Multi-Point Boundary Value Problems with Riesz-Caputo Fractional Derivatives [PDF]
Sahand Communications in Mathematical AnalysisThis paper explores the study of a specific category of nonlinear multi-point boundary value problems (BVPs) associated with Riesz-Caputo fractional differential equations and integral boundary conditions.
Takieddine Zeghida +2 more
doaj +1 more source
New Insights on Keller–Osserman Conditions for Semilinear Systems
MathematicsIn this article, we consider a semilinear elliptic system involving gradient terms of the form Δyx+λ1∇yx=pxfyx,zxifx∈Ω,Δzx+λ2∇zx=qxgyxifx∈Ω, where λ1, λ2∈0,∞, Ω is either a ball of radius R>0 or the entire space RN.
Dragos-Patru Covei
doaj +1 more source