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We consider a modified Boltzmann equation which contains, together with the collision operator, an additional drift term that is characterized by a matrix A. Furthermore, we consider a Maxwell gas, where the collision kernel has an angular…

Analysis of PDEs · Mathematics 2026-03-31 Bernhard Kepka

The quasilinear fourth-order thin film equation in $R^N$ is shown to admit infinite countable families of global and blow-up similarity solutions, which are originated in the limit from eigenfunctions of the corresponding linear…

Analysis of PDEs · Mathematics 2010-09-30 P. Álvarez-Caudevilla , V. A. Galaktionov

We investigate the large time behavior of compactly supported solutions for a one-dimensional thin-film equation with linear mobility in the regime of partial wetting. We show the stability of steady state solutions. The proof uses the…

Analysis of PDEs · Mathematics 2021-06-09 Mohamed Majdoub , Nader Masmoudi , Slim Tayachi

We study the dynamic behaviour of solutions to a fourth-order quasilinear degenerate parabolic equation for large times arising in fluid dynamical applications. The degeneracy occurs both with respect to the unknown and with respect to the…

Analysis of PDEs · Mathematics 2024-02-28 Christina Lienstromberg , Juan J. L. Velázquez

A unique analytic continuation result is proven for solutions of a relatively general class of difference equations by using techniques of generalized Borel summability. We overview applications exponential asymptotics and analyzable…

Classical Analysis and ODEs · Mathematics 2007-05-23 O. Costin , M. D. Kruskal

We proved the existence and uniqueness of a traveling wave solution to the thin film equation with a Navier slip condition at the liquid-solid interface. We obtain explicit lower and upper bounds for the solution and an absolute error…

Analysis of PDEs · Mathematics 2008-05-08 Roman M. Taranets

For mobility exponents $n \in (2,3)$, we prove existence of strictly positive solutions to stochastic thin-film equations with singular effective interface potential and Stratonovich-type lower-order terms. With the perspective of using…

Analysis of PDEs · Mathematics 2024-06-13 Günther Grün , Lorenz Klein

We consider strictly positive solutions to a class of fourth-order conservative quasilinear SPDEs on the $d$-dimensional torus modeled after the stochastic thin-film equation. We prove local Lipschitz estimates in Bessel potential spaces…

Analysis of PDEs · Mathematics 2026-01-09 Antonio Agresti , Max Sauerbrey

The objective of this paper is to study the plane symmetric kinematic self-similar heat conducting fluid and charge dust solutions of the Einstein field equations. These solutions are classified according to self-similarity of the first,…

General Relativity and Quantum Cosmology · Physics 2011-09-05 M. Sharif , Wajiha Javed

The use of thin liquid films has expanded beyond lubrication and coatings, and into applications in actuators and adaptive optical elements. In contrast to their predecessors, whose dynamics can be typically captured by modelling infinite…

Fluid Dynamics · Physics 2023-07-06 Israel Gabay , Vesna Bacheva , Dotan Ilssar , Moran Bercovici , Antonio Ramos , Amir Gat

In this paper the existence of a class of self-similar solutions of the Einstein-Vlasov system is proved. The initial data for these solutions are not smooth, with their particle density being supported in a submanifold of codimension one.…

General Relativity and Quantum Cosmology · Physics 2011-05-18 Alan D. Rendall , Juan J. L. Velazquez

This chapter illustrates how to apply continuation techniques in the analysis of a particular class of nonlinear kinetic equations that describe the time evolution through transport equations for a single scalar field like a densities or…

This paper is concerned with the transient dynamics described by the solutions of the reaction-diffusion equations in which the reaction term consists of a combination of a superlinear power-law absorption and a time-independent point…

Analysis of PDEs · Mathematics 2015-11-10 Peter V. Gordon , Cyrill B. Muratov

In this paper, we are exploring some of the properties of the self-similar solutions of the first kind. In particular, we shall discuss the kinematic properties and also check the singularities of these solutions. We discuss these…

General Relativity and Quantum Cosmology · Physics 2009-11-10 M. Sharif , Sehar Aziz

An approach to some "optimal" (more precisely, non-improvable) regularity of solutions of the thin film equation u_{t} = -\nabla \cdot(|u|^{n} \nabla \D u) in \ren \times \re_+, u(x,0)=u_0(x) in \re^N, where n in (0,2) is a fixed exponent,…

Analysis of PDEs · Mathematics 2015-05-07 Pablo Alvarez-Caudevilla , Jonathan D. Evans , Victor A. Galaktionov

In this paper, we constuct the multi-point blowup solutions of self-similar type for the inviscid Burgers equation. The shape and blowup dynamics are precisely described. Moreover, the solutions we construct are stable under small…

Analysis of PDEs · Mathematics 2021-03-02 Yiya Qiu , Lifeng Zhao

Existence of nonnegative weak solutions is shown for a thin film approximation of the Muskat problem with gravity and capillary forces taken into account. The model describes the space-time evolution of the heights of the two fluid layers…

Analysis of PDEs · Mathematics 2012-06-26 Philippe Laurencot , Bogdan-Vasile Matioc

This article continues the research initiated in [17]. We derive explicit formulae for the leading order profiles of eleven types of stationary solutions to a one-dimensional two-layer thin-film liquid model considered with an…

Analysis of PDEs · Mathematics 2024-07-19 Georgy Kitavtsev

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 consider a class of stochastic partial differential equations arising as a model for amorphous thin film growth. Using a spectral Galerkin method, we verify the existence of stationary mild solutions, although the specific nature of the…

Mathematical Physics · Physics 2007-05-23 Dirk Blömker , Martin Hairer