Results 21 to 30 of about 1,355,996 (330)

Stabilization in degenerate parabolic equations in divergence form and application to chemotaxis systems [PDF]

open access: yes, 2023
summary:This paper presents a stabilization result for weak solutions of degenerate parabolic equations in divergence form. More precisely, the result asserts that the global-in-time weak solution converges to the average of the initial data in some ...
Ishida, Sachiko, Yokota, Tomomi
core   +1 more source

Null controllability of degenerate parabolic equation with memory [PDF]

open access: yesMathematical Methods in the Applied Sciences, 2021
In this paper, we analyze the null controllability property for a degenerate parabolic equation involving memory terms with a locally distributed control. We first derive a null controllability result for a nonhomogeneous degenerate heat equation via new Carleman estimates with weighted time functions that do not blow up at .
Allal, Brahim, Fragnelli, Genni
openaire   +6 more sources

Nonnegative controllability for a class of nonlinear degenerate parabolic equations with application to climate science [PDF]

open access: yesElectronic Journal of Differential Equations, 2020
We consider a nonlinear degenerate reaction-diffusion equation. First we prove that if the initial state is nonnegative, then the solution remains nonnegative for all time.
Giuseppe Floridia
semanticscholar   +1 more source

Numerical Solution of Parabolic Equations by the Box Scheme [PDF]

open access: yes, 1973
The box scheme proposed by H. B. Keller is a numerical method for solving parabolic partial differential equations. We give a convergence proof of this scheme for the heat equation, for a linear parabolic system, and for a class of nonlinear parabolic ...
Fong, Kirby William
core   +1 more source

On some degenerate parabolic equations II [PDF]

open access: yesNagoya Mathematical Journal, 1973
In the article I: [8], we have proved the hypoellipticity of a degenerate parabolic equation of the form:where the coefficients a(x, t), b(x,t) and c(x, t) are complex valued smooth functions. The fundamental assumption on the coefficients is that Re a(x, t) satisfies the condition of Nirenberg and Treves ([8], (1.5)).
openaire   +6 more sources

Attractors for a class of semi-linear degenerate parabolic equations [PDF]

open access: yes, 2013
We consider degenerate parabolic equations of the form ∂tu = Δλu + f(u) u|∂Ω = 0, u|t=0 = u0 in a bounded domain Ω ⊂N, where Δλ is a subelliptic operator of the type (Formula presented.) We prove global existence of solutions and characterize their ...
Sonner, Stefanie   +6 more
core   +1 more source

On the local integrability and boundedness of solutions to quasilinear parabolic systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
We introduce a structure condition of parabolic type, which allows for the generalization to quasilinear parabolic systems of the known results of integrability, and boundedness of local solutions to singular and degenerate quasilinear parabolic ...
T. Giorgi, M. O'Leary
doaj   +1 more source

Identification problems for degenerate parabolic equations [PDF]

open access: yesApplications of Mathematics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Awawdeh, Fadi, Obiedat, Hamed M.
openaire   +1 more source

Convergence of Inverse Volatility Problem Based on Degenerate Parabolic Equation

open access: yesMathematics, 2022
Based on the theoretical framework of the Black–Scholes model, the convergence of the inverse volatility problem based on the degenerate parabolic equation is studied.
Yilihamujiang Yimamu, Zuicha Deng
doaj   +1 more source

Optimal partial boundary condition for degenerate parabolic equations

open access: yes, 2021
For the stability of the non-Newtonian fluid equation ∂ u ∂ t − div ( a ( x ) | ∇ u | p − 2 ∇ u ) − ∑ i = 1 N b i ( x ) D i u + c ( x , t ) u = f ( x , t ) , where a ( x ) | x ∈ Ω > 0 , a ( x ) | x ∈ ∂ Ω = 0 and b i ( x ) ∈ C 1 ( Ω ‾ ) , we know that the
Hua-Shui Zhan, Zhaosheng Feng
semanticscholar   +1 more source

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