Results 61 to 70 of about 1,990 (139)

Vanishing viscosity limit for a one-dimensional viscous conservation law in the presence of two noninteracting shocks

open access: yesDemonstratio Mathematica
In this article, we study the inviscid limit of the solution to the Cauchy problem of a one-dimensional viscous conservation law, where the second-order term is nonlinear. Under the assumption that the inviscid equation admits a piecewise smooth solution
Feng Li, Wang Jing
doaj   +1 more source

Hölder gradient estimates for a class of singular or degenerate parabolic equations

open access: yesAdvances in Nonlinear Analysis, 2017
We prove interior Hölder estimates for the spatial gradients of the viscosity solutions to the singular or degenerate parabolic ...
Imbert Cyril   +2 more
doaj   +1 more source

On the Two-phase Fractional Stefan Problem

open access: yesAdvanced Nonlinear Studies, 2020
The classical Stefan problem is one of the most studied free boundary problems of evolution type. Recently, there has been interest in treating the corresponding free boundary problem with nonlocal diffusion.
del Teso Félix   +2 more
doaj   +1 more source

Well-posedness for a class of nonlinear degenerate parabolic equations

open access: yes, 2015
In this paper we obtain well-posedness for a class of semilinear weakly degenerate reaction-diffusion systems with Robin boundary conditions. This result is obtained through a Gagliardo-Nirenberg interpolation inequality and some embedding results for ...
A. Bensoussan   +10 more
core   +1 more source

The higher integrability of weak solutions of porous medium systems

open access: yesAdvances in Nonlinear Analysis, 2018
In this paper we establish that the gradient of weak solutions to porous medium-type systems admits the self-improving property of higher integrability.
Bögelein Verena   +3 more
doaj   +1 more source

Regularity and geometric character of solution of a degenerate parabolic equation

open access: yes, 2015
This work studies the regularity and the geometric significance of solution of the Cauchy problem for a degenerate parabolic equation $u_{t}=\Delta{}u^{m}$.
Pan, Jiaqing
core   +1 more source

A constructive method for convex solutions of a class of nonlinear Black-Scholes equations

open access: yesAdvances in Nonlinear Analysis, 2019
In this work, we are concerned with the theoretical study of a nonlinear Black-Scholes equation resulting from market frictions. We will focus our attention on Barles and Soner’s model where the volatility is enlarged due to the presence of transaction ...
Abounouh Mostafa   +3 more
doaj   +1 more source

On the Dirichlet Problem for hypoelliptic evolution equations: Perron-Wiener solution and a cone-type criterion

open access: yes, 2016
We show how to apply harmonic spaces potential theory in the study of the Dirichlet problem for a general class of evolution hypoelliptic partial differential equations of second order.
Kogoj, Alessia E.
core   +1 more source

Semi-wavefront solutions in models of collective movements with density-dependent diffusivity [PDF]

open access: yesarXiv, 2017
This paper deals with a nonhomogeneous scalar parabolic equation with possibly degenerate diffusion term; the process has only one stationary state. The equation can be interpreted as modeling collective movements (crowd dynamics, for instance).
arxiv  

On the Cauchy problem of a degenerate parabolic-hyperbolic PDE with Lévy noise

open access: yesAdvances in Nonlinear Analysis, 2017
In this article, we deal with the stochastic perturbation of degenerate parabolic partial differential equations (PDEs). The particular emphasis is on analyzing the effects of a multiplicative Lévy noise on such problems and on establishing a well ...
Biswas Imran H.   +2 more
doaj   +1 more source

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