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Snow slab avalanches are among the most dangerous natural hazards in mountain areas. Recent progress in numerical modelling, field measurements, and large-scale fracture experiments has renewed interest in shear-failure interpretations of…

Geophysics · Physics 2026-05-07 Johan Gaume , Francis Meloche , Ingrid Reiweger

In this paper we accomplish the development of the fast rank-adaptive solver for tensor-structured symmetric positive definite linear systems in higher dimensions. In [arXiv:1301.6068] this problem is approached by alternating minimization…

Numerical Analysis · Mathematics 2014-10-07 Sergey V. Dolgov , Dmitry V. Savostyanov

In this paper, we study the initial value problem of a Boltzmann type equation with a nonlinear degenerate damping. We prove the existence of global weak solutions with large initial data, in three dimensional space. We rely on a variant…

Analysis of PDEs · Mathematics 2016-04-08 Cheng Yu

In this work, we study the existence and nonexistence of solution for strongly coupled elliptic systems to m-parameters.

Analysis of PDEs · Mathematics 2021-01-05 Felipe Costa , Gil F. de Souza , Marcos Montenegro

We study the nonlocal-to-local convergence for a nonlocal Cahn-Hilliard equation with anisotropic and singular kernels. In particular, we show convergence of weak solutions of the nonlocal Cahn-Hilliard equation to weak solutions of a…

Analysis of PDEs · Mathematics 2025-12-02 Helmut Abels , Yutaka Terasawa

Split Supersymmetry does not attempt to solve the hierarchy problem, but it assumes a tuning condition for the electroweak scale. We clarify the meaning of this condition and show how it is related to the underlying parameters. Simple…

High Energy Physics - Phenomenology · Physics 2009-11-11 A. Delgado , G. F. Giudice

After summarizing the development of black hole thermodynamics in the seventies, we describe a recent microscopic model. This model suggests that the Bekenstein-Hawking area formula holds for extremal black holes as well as for ordinary…

High Energy Physics - Theory · Physics 2008-02-03 P. Mitra

The convex hull property is the natural generalization of maximum principles from scalar to vector valued functions. Maximum principles for finite element approximations are often crucial for the preservation of qualitative properties of…

Numerical Analysis · Mathematics 2019-05-22 Lars Diening , Christian Kreuzer , Sebastian Schwarzacher

We study a nonlinear branching diffusion process in the sense of McKean, i.e., where particles are subjected to a mean-field interaction. We consider first a strong formulation of the problem and we provide an existence and uniqueness…

Probability · Mathematics 2024-09-12 Julien Claisse , Jiazhi Kang , Xiaolu Tan

The purpose of this note is to demonstrate the announced result in [Loher, The Strong Harnack inequality for the Boltzmann equation, S\'eminaire Laurent Schwartz proceeding] by filling the gap in the proof sketch. We prove the semi-local…

Analysis of PDEs · Mathematics 2025-01-17 Amélie Loher

This paper concerns with mesh restrictions that are needed to satisfy several important mathematical properties -- maximum principles, comparison principles, and the non-negative constraint -- for a general linear second-order elliptic…

Numerical Analysis · Computer Science 2015-02-24 M. K. Mudunuru , K. B. Nakshatrala

As explained in detail in the prologue to this manuscript, boundedness of weak solutions for general classes of elliptic equations in divergence form is a classic tool for achieving higher regularity. We propose here some global boundedness…

Analysis of PDEs · Mathematics 2025-12-23 Giovanni Cupini , Paolo Marcellini

In this paper, we extend the analysis of the subcritical approximation of the Nirenberg problem on spheres recently conducted in \cite{MM19, MM}. Specifically, we delve into the scenario where the sequence of blowing up solutions exhibits a…

Analysis of PDEs · Mathematics 2024-04-23 Mohameden Ahmedou , Mohamed Ben Ayed , Khalil El Mehdi

We study a nonlocal Cahn-Hilliard model for a multicomponent mixture with cross-diffusion effects and degenerate mobility. The nonlocality is described by means of a symmetric singular kernel. We define a notion of weak solution adapted to…

Analysis of PDEs · Mathematics 2026-05-22 Elisa Davoli , Greta Marino , Jan-Frederik Pietschmann

The existence and uniqueness of solution to a one-dimensional hyperbolic integro-differential problem arising in viscoelasticity is here considered. The kernel, in the linear viscoelasticity equation, represents the relaxation function…

Mathematical Physics · Physics 2019-06-03 Sandra Carillo , Michel Chipot , Vanda Valente , Giorgio Vergara Caffarelli

A class of generalized non-minimal coupling theories is investigated, in search of scaling attractors able to provide an accelerated expansion at the present time. Solutions are found in the strong coupling regime and when the coupling…

Astrophysics · Physics 2008-11-26 Luca Amendola

In this paper, we study the solvability of a Cauchy- Dirichlet problem for nonlinear parabolic equation with non standard growths and nonlocal terms. We show the existence of weak solutions of the considered problem under more general…

Analysis of PDEs · Mathematics 2018-03-01 Ugur Sert , Eylem Ozturk

A conditional entropic approach is discussed for nonequilibrium complex systems with a weak correlation between spatiotemporally fluctuating quantities on a large time scale. The weak correlation is found to constitute the fluctuation…

Statistical Mechanics · Physics 2023-04-04 Yuichi Itto

We consider in this article the weakly coupled system of wave equations in the \textit{scale-invariant case} and with time-derivative nonlinearities. Under the usual assumption of small initial data, we obtain an improvement of the…

Analysis of PDEs · Mathematics 2020-08-25 Makram Hamouda , Mohamed Ali Hamza

We investigate the existence of weak solutions to a certain system of partial differential equations, modelling the behaviour of a compressible non-Newtonian fluid for small Reynolds number. We construct the weak solutions despite the lack…

Analysis of PDEs · Mathematics 2023-05-24 Milan Pokorný , Maja Szlenk