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The work is devoted to the construction of the asymptotic behavior of the solution of a singularly perturbed system of equations of parabolic type, in the case when the limit equation has a regular singularity as the small parameter tends…

Analysis of PDEs · Mathematics 2020-09-17 Asan Omuraliev , Peiil Esengul Kyzy

Structure-preserving finite-difference schemes for general nonlinear fourth-order parabolic equations on the one-dimensional torus are derived. Examples include the thin-film and the Derrida-Lebowitz-Speer-Spohn equations. The schemes…

Numerical Analysis · Mathematics 2020-01-14 Marcel Braukhoff , Ansgar Jüngel

In this paper, we focus on the thin film equation with lower order "backwards" diffusion which can describe, for example, the evolution of thin viscous films in the presence of gravity and thermo-capillary effects, or the thin film equation…

Analysis of PDEs · Mathematics 2010-10-05 Amy Novick-Cohen , Andrey Shishkov

In this paper we study the continuous coagulation and multiple fragmentation equation for the mean-field description of a system of particles taking into account the combined effect of the coagulation and the fragmentation processes in…

Analysis of PDEs · Mathematics 2018-11-16 Prasanta Kumar Barik

When studying boundary value problems for some partial differential equations arising in applied mathematics, we often have to study the solution of a system of partial differential equations satisfied by hypergeometric functions and find…

Classical Analysis and ODEs · Mathematics 2020-05-26 Michael Ruzhansky , Anvar Hasanov

We study the large time behavior of the sublinear viscosity solution to a singular Hamilton-Jacobi equation that appears in a critical Coagulation-Fragmentation model with multiplicative coagulation and constant fragmentation kernels. Our…

Analysis of PDEs · Mathematics 2020-10-02 Hiroyoshi Mitake , Hung V. Tran , Truong-Son Van

Thin-film flows of viscoelastic fluids are encountered in various industrial and biological settings. The understanding of thin viscous film flows in Newtonian fluids is very well developed, which for a large part is due to the so-called…

Fluid Dynamics · Physics 2021-12-24 Charu Datt , Minkush Kansal , Jacco H. Snoeijer

Starting from a nonlinear 2D/1D fluid-structure interaction problem between a thin layer of a viscous fluid and a thin elastic structure, on the vanishing limit of the relative fluid thickness, we rigorously derive a sixth-order thin-film…

Analysis of PDEs · Mathematics 2022-07-27 Mario Bukal , Boris Muha

This paper is devoted to the study of the large time behaviour of viscosity solutions of parabolic equations with Neumann boundary conditions. This work is the sequel of [13] in which a probabilistic method was developped to show that the…

Probability · Mathematics 2015-09-18 Ying Hu , Pierre-Yves Madec

We prove local unique solvability of the wave equation for a large class of weakly singular, locally bounded space-time metrics in a suitable space of generalised functions.

Mathematical Physics · Physics 2009-02-11 James D. E. Grant , Eberhard Mayerhofer , Roland Steinbauer

Time fractional parabolic problem for p-Laplacian with double singular Hardy-type potential is considered. Comparison principle and appriory estimates for the weak solutions are proved. Existence of global weak solutions and finite-time…

Analysis of PDEs · Mathematics 2026-03-17 Nikolai Kutev , Tsviatko Rangelov

We construct a family of self-similar solutions with fat tails to a quadratic kinetic equation. This equation describes the long time behaviour of weak solutions with finite mass to the weak turbulence equation associated to the nonlinear…

Mathematical Physics · Physics 2016-05-24 A. H. M. Kierkels , J. J. L. Velázquez

We study the asymptotic behaviour of solutions of a class of linear non-local measure-valued differential equations with time delay. Our main result states that the solutions asymptotically exhibit a parabolic like behaviour in the large…

Dynamical Systems · Mathematics 2019-01-01 Arnaud Ducrot , Alexandre Genadot

A doubly degenerate parabolic equation in non-divergent form with variable growth is investigated in this paper. In suitable spaces, we prove the existence of weak solutions of the equation for cases $1\leq m < 2$ and $m\geq 2$ in different…

Analysis of PDEs · Mathematics 2024-04-24 Jingfeng Shao , Zhichang Guo , Zhongxiang Zhou

In this paper we prove uniqueness results for renormalized solutions to a class of nonlinear parabolic problems.

Analysis of PDEs · Mathematics 2011-11-28 Rosaria Di Nardo , Filomena Feo , Olivier Guibé

This paper deals with nonnegative solutions of the one dimensional degenerate parabolic equations with zero homogeneous Dirichlet boundary condition. To obtain an existence result, we prove a sharp gradient estimate of |u_x|. Besides, we…

Analysis of PDEs · Mathematics 2015-04-13 Anh Dao Nguyen

In this paper, we study the large time behavior of solutions of a class of parabolic fully nonlinear integro-differential equations in a periodic setting. In order to do so, we first solve the ergodic problem}(or cell problem), i.e. we…

Analysis of PDEs · Mathematics 2014-04-30 Guy Barles , Emmanuel Chasseigne , Adina Ciomaga , Cyril Imbert

We study self-similar solutions of the thin-film equation, with mobility exponent m in (0,4], that describe the lifting of an isolated touch-down point given by an initial profile of the form |x|. This provides a mechanism for…

Dynamical Systems · Mathematics 2017-08-02 Carlota M. Cuesta , Hans Knüpfer , Juan J. L. Velázquez

The optimal insulation of a heat conducting body by a thin film of variable thickness can be formulated as a nondifferentiable, nonlocal eigenvalue problem. The discretization and iterative solution for the reliable computation of…

Numerical Analysis · Mathematics 2017-08-15 Sören Bartels , Giuseppe Buttazzo

We establish the existence of non-negative global weak solutions for a strongly couple degenerated parabolic system which was obtained as an approximation of the two-phase Stokes problem driven solely by capillary forces. Moreover, the…

Analysis of PDEs · Mathematics 2012-10-25 Joachim Escher , Bogdan-Vasile Matioc