“…Note that existence results for this class of equation have been obtained in [3,7,8] for more restrictive vector field a. A work is in progress in this direction.…”
Section: Conclusion and Possible Extensionsmentioning
Abstract. This paper deals with the numerical approximation of mild solutions of elliptic-parabolic equations, relying on the existence results of Bénilan and Wittbold (1996). We introduce a new and simple algorithm based on Halpern's iteration for nonexpansive operators (Bauschke, 1996;Halpern, 1967;Lions, 1977), which is shown to be convergent in the degenerate case, and compare it with existing schemes (Jäger and Kačur, 1995;Kačur, 1999).Mathematics Subject Classification. 65M12, 35K65, 35K55, 65N22.
“…Note that existence results for this class of equation have been obtained in [3,7,8] for more restrictive vector field a. A work is in progress in this direction.…”
Section: Conclusion and Possible Extensionsmentioning
Abstract. This paper deals with the numerical approximation of mild solutions of elliptic-parabolic equations, relying on the existence results of Bénilan and Wittbold (1996). We introduce a new and simple algorithm based on Halpern's iteration for nonexpansive operators (Bauschke, 1996;Halpern, 1967;Lions, 1977), which is shown to be convergent in the degenerate case, and compare it with existing schemes (Jäger and Kačur, 1995;Kačur, 1999).Mathematics Subject Classification. 65M12, 35K65, 35K55, 65N22.
“…Using an implicit time scheme such as (1.5) to solve doubly nonlinear evolutions in reflexive Banach spaces has been carried out with great success; see [2,4,11,12,16,27,31]. In our view, the main insight that makes this approach work is a certain compactness feature of weak solutions that we now explore.…”
We study the large time behavior of solutions of the PDE |v t | p−2 v t = ∆ p v. A special property of this equation is that the Rayleigh quotient Ω |Dv(x, t)| p dx/ Ω |v(x, t)| p dx is nonincreasing in time along solutions. As t tends to infinity, this ratio converges to the optimal constant in Poincaré's inequality. Moreover, appropriately scaled solutions converge to a function for which equality holds in this inequality. An interesting limiting equation also arises when p tends to infinity, which provides a new approach to approximating ground states of the infinity Laplacian.
“…The homogenization of several other quasilinear equations may also be studied, including doubly-nonlinear systems of the form 6) with α and γ as above. Existence of a solution for an associated boundary-and initial-value problem was proved in [8].…”
This work deals with the homogenization of an initial-and boundary-value problem for the doubly-nonlinear systemHere ε is a positive parameter, and the prescribed mappings α and γ are maximal monotone with respect to the first variable and periodic with respect to the second one. The inclusions (0.2) and (0.3) are here formulated as null-minimization principles, via the theory of Fitzpatrick [MR 1009594]. As ε → 0, a two-scale formulation is derived via Nguetseng's notion of two-scale convergence, and a (single-scale) homogenized problem is then retrieved. (2000): 35B27, 35K60, 49J40, 78M40.
AMS Classification
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