Results 41 to 50 of about 43,973 (335)
Riesz potentials and nonlinear parabolic equations [PDF]
The spatial gradient of solutions to nonlinear degenerate parabolic equations can be pointwise estimated by the caloric Riesz potential of the right hand side datum, exactly as in the case of the heat equation.
A. Cianchi +31 more
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PERIODIC SOLUTION FOR A CLASS OF DOUBLY DEGENERATE PARABOLIC EQUATION WITH NEUMANN PROBLEM [PDF]
In this article, we study the periodic solution for a class of doubly degenerate parabolic equation with nonlocal terms and Neumann boundary conditions. By using the theory of Leray-Schauder degree, we obtain the existence of nontrivial nonnegative time ...
Raad Awad Hameed, Wafaa M. Taha
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On the convergence of a class of degenerate parabolic equations
The authors study the convergence of the Cauchy-Dirichlet problems for a sequence of parabolic operators in the divergence form \(P_h =\frac{\partial}{\partial t} - \text{div} (a_h(x,t) D)\), as \(h\to\infty\), where \(a_h(x,t) =[a_{h,ij}(x,t)]_{i,j =1,\dots n}\) are matrices of measurable functions defined on a bounded open cylinder \(\Omega\times (0 ...
PARONETTO, FABIO, F. Serra Cassano
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On the Cauchy problem for a degenerate parabolic differential equation
The aim of this work is to prove the existence and the uniqueness of the solution of a degenerate parabolic equation. This is done using H. Tanabe and P.E. Sobolevsldi theory.
Ahmed El-Fiky
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A degenerate parabolic equation in noncylindrical domains
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BERTSCH, MICHIEL +2 more
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The paper found the explicit form of the fundamental solution of Cauchy problem for the equation of Kolmogorov type that has a finite number groups of spatial variables which are degenerate parabolic.
H.P. Malytska, I.V. Burtnyak
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Expansion of positivity to a class of doubly nonlinear parabolic equations
We establish the expansion of positivity of the nonnegative, local, weak solutions to the class of doubly nonlinear parabolic equations $$\partial_t (u^{q}) -\operatorname{div}{(|D u|^{p-2} D u)}=0, \qquad\ p>1 \ \text{and} \ q>0$$ considering ...
Eurica Henriques
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Difference schemes for degenerate parabolic equations [PDF]
Diagonal dominant implicit-difference schemes approximating a porous media type class of multidimensional nonlinear equations are shown to generate semigroups in an approximate L 1 {L^1} -space, and the rate of convergence to the semigroup solution in L 1
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Domain decomposition based time integrators allow the usage of parallel and distributed hardware, making them well-suited for the temporal discretization of parabolic systems, in general, and degenerate parabolic problems, in particular.
Eisenmann, Monika, Hansen, Eskil
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Asymptotic expansions for degenerate parabolic equations
Abstract We prove asymptotic convergence results for some analytical expansions of solutions to degenerate PDEs with applications to financial mathematics. In particular, we combine short-time and global-in-space error estimates, previously obtained in the uniformly parabolic case, with some a priori bounds on “short cylinders”, and we achieve short ...
PASCUCCI, ANDREA +2 more
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