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Time—periodic weak solutions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In continuing from previous papers, where we studied the existence and uniqueness of the global solution and its asymptotic behavior as time t goes to infinity, we now search for a time-periodic weak solution u(t) for the equation whose weak formulation ...
Eliana Henriques de Brito
doaj   +2 more sources

Existence of a weak solution to a nonlinear fluid-structure interaction problem with heat exchange [PDF]

open access: yesCommunications in Partial Differential Equations, 2021
In this paper, we study a nonlinear interaction problem between a thermoelastic shell and a heat-conducting fluid. The shell is governed by linear thermoelasticity equations and encompasses a time-dependent domain which is filled with a fluid governed by
V'aclav M'acha   +4 more
semanticscholar   +1 more source

Stability of Positive Weak Solution for Generalized Weighted p-Fisher-Kolmogoroff Nonlinear Stationary-State Problem

open access: yesEuropean Journal of Mathematical Analysis, 2022
In the present paper, we investigate the stability results of positive weak solution for the generalized Fisher–Kolmogoroff nonlinear stationary-state problem involving weighted p-Laplacian operator −d∆P,pu = ka(x)u[ν − υu] in Ω, Bu = 0 on ∂Ω, where ∆P,p
Salah A. Khafagy, Hassan M. Serag
doaj   +1 more source

A weak solution theory for stochastic Volterra equations of convolution type [PDF]

open access: yesThe Annals of Applied Probability, 2019
We obtain general weak existence and stability results for stochastic convolution equations with jumps under mild regularity assumptions, allowing for non-Lipschitz coefficients and singular kernels.
Eduardo Abi Jaber   +3 more
semanticscholar   +1 more source

Numerical solution of inverse problems by weak adversarial networks [PDF]

open access: yesInverse Problems, 2020
In this paper, a weak adversarial network approach is developed to numerically solve a class of inverse problems, including electrical impedance tomography and dynamic electrical impedance tomography problems.
Gang Bao   +3 more
semanticscholar   +1 more source

On the dissipative solutions for the inviscid Boussinesq equations

open access: yesAIMS Mathematics, 2020
In this paper, we study the dissipative solutions for the inviscid Boussinesq equations. It is shown that there is at least one dissipative solution for the inviscid incompressible Boussinesq equations.
Feng Cheng
doaj   +1 more source

Constant Scalar Curvature Equation and Regularity of Its Weak Solution [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2017
In this paper we study the constant scalar curvature equation (CSCK), a nonlinear fourth‐order elliptic equation, and its weak solutions on Kähler manifolds. We first define the notion of a weak solution of CSCK for an L∞ Kähler metric.
Weiyong He, Yu Zeng
semanticscholar   +1 more source

Stochastic differential equations with singular coefficients on the straight line

open access: yesAdvances in Difference Equations, 2020
Consider the following stochastic differential equation (SDE): X t = x + ∫ 0 t b ( s , X s ) d s + ∫ 0 t σ ( s , X s ) d B s , 0 ≤ t ≤ T , x ∈ R , $$ X_{t}=x+ \int _{0}^{t}b(s,X_{s})\,ds+ \int _{0}^{t}\sigma (s,X_{s}) \,dB_{s}, \quad 0\leq t\leq T, x\in \
Rongrong Tian, Liang Ding, Jinlong Wei
doaj   +1 more source

A unique weak solution for a kind of coupled system of fractional Schrödinger equations

open access: yesOpuscula Mathematica, 2020
In this paper, we prove the existence of a unique weak solution for a class of fractional systems of Schrödinger equations by using the Minty-Browder theorem in the Cartesian space.
F. Abdolrazaghi, A. Razani
semanticscholar   +1 more source

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