Noncoercive diffusion equations with Radon measures as initial data

MM Porzio, F Smarrazzo, A Tesei - Journal of the London …, 2022 - Wiley Online Library
We study Radon measure‐valued solutions of the Cauchy–Dirichlet problem for∂ tu= Δ ϕ
(u) ∂_tu=Δϕ(u) for a continuous, nondecreasing, at most powerlike ϕ ϕ. We prove well …

On two-dimensional steady hypersonic-limit Euler flows passing ramps and Radon measure solutions of compressible Euler equations

Y Jin, A Qu, H Yuan - arXiv preprint arXiv:1909.03624, 2019 - arxiv.org
We proposed rigorous definitions of Radon measure solutions for boundary value problems
of steady compressible Euler equations which modeling hypersonic-limit inviscid flows …

Measure-valued solutions of scalar hyperbolic conservation laws, Part 1: Existence and time evolution of singular parts

M Bertsch, F Smarrazzo, A Terracina, A Tesei - Nonlinear Analysis, 2024 - Elsevier
We prove existence for a class of signed Radon measure-valued entropy solutions of the
Cauchy problem for a first order scalar hyperbolic conservation law in one space dimension …

Measure-valued solutions of scalar hyperbolic conservation laws, Part 2: Uniqueness

M Bertsch, F Smarrazzo, A Terracina, A Tesei - Nonlinear Analysis, 2025 - Elsevier
We prove well-posedness of the Cauchy problem for a first order scalar hyperbolic
conservation law in one space dimension, where the singular part of the initial data is a finite …

A uniqueness criterion for measure-valued solutions of scalar hyperbolic conservation laws

M Bertsch, F Smarrazzo, A Terracina, A Tesei - Rendiconti Lincei, 2019 - ems.press
We prove existence and uniqueness of Radon measure-valued solutions of the Cauchy
problem for a first order scalar hyperbolic conservation law in one space dimension, the …

Evolution and interaction of δ-waves in the zero-pressure gas dynamics system

A Das, KT Joseph - Acta Mathematica Scientia, 2024 - Springer
Evolution and interaction of plane waves of the multidimensional zero-pressure gas
dynamics system leads to the study of the corresponding one dimensional system. In this …

Signed Radon measure-valued solutions of flux saturated scalar conservation laws

M Bertsch, F Smarrazzo, A Terracina… - arXiv preprint arXiv …, 2019 - arxiv.org
We prove existence and uniqueness for a class of signed Radon measure-valued entropy
solutions of the Cauchy problem for a first order scalar hyperbolic conservation law in one …

Cutoff phenomenon for asymmetric zero range process with monotone rates

O Rameh - arXiv preprint arXiv:2410.05220, 2024 - arxiv.org
We investigate the mixing time of the asymmetric Zero Range process on the segment with a
non-decreasing rate. We show that the cutoff holds in the totally asymmetric case with a …

Discontinuous solutions of Hamilton–Jacobi equations versus Radon measure-valued solutions of scalar conservation laws: Disappearance of singularities

M Bertsch, F Smarrazzo, A Terracina… - Journal of Dynamics and …, 2023 - Springer
Let H be a bounded and Lipschitz continuous function. We consider discontinuous viscosity
solutions of the Hamilton–Jacobi equation U t+ H (U x)= 0 and signed Radon measure …

Explicit structure of the vanishing viscosity limits with initial data consisting of -distributions starting from two point sources

A Das - arXiv preprint arXiv:2209.07142, 2022 - arxiv.org
In this article, we consider the one-dimensional zero-pressure gas dynamics
system\[u_t+\left ({u^ 2}/{2}\right) _x= 0,\\rho_t+(\rho u) _x= 0\] in the upper-half plane with a …