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We investigate the effect of nonlocal conditions expressed by linear continuous mappings over the hypotheses which guarantee the existence of global mild solutions for functional-differential equations in a Banach space. A progressive…

Classical Analysis and ODEs · Mathematics 2024-05-14 Tiziana Cardinali , Radu Precup , Paola Rubbioni

We study the Cauchy problem for non-linear non-local operators that may be degenerate. Our general framework includes cases where the jump intensity is allowed to depend on the values of the solution itself, e.g. the porous medium equation…

Analysis of PDEs · Mathematics 2020-05-18 Grzegorz Karch , Moritz Kassmann , Miłosz Krupski

This article deals with the study of a non-local one-dimensional quasilinear problem with continuous forcing. We use a time-reparameterization to obtain a semilinear problem and study a more general equation using semigroup theory. The…

Analysis of PDEs · Mathematics 2025-08-05 Tomás Caraballo , A. N. Carvalho , Yessica Julio

We study the Cauchy problem for $p$-adic nonlinear evolutionary pseudo-differential equations for complex-valued functions of a real positive time variable and p-adic spatial variables. Among the equations under consideration there is the…

Analysis of PDEs · Mathematics 2019-09-17 Alexandra V. Antoniouk , Andrei Yu. Khrennikov , Anatoly N. Kochubei

The purpose of the present work is to study the existence of solutions to initial value problems for nonlinear first order differential systems with nonlinear nonlocal boundary conditions of functional type. The existence results are…

Classical Analysis and ODEs · Mathematics 2021-02-09 Octavia Bolojan-Nica , Gennaro Infante , Radu Precup

This paper is concerned with the analysis of the Cauchy problem of a general class of two-dimensional nonlinear nonlocal wave equations governing anti-plane shear motions in nonlocal elasticity. The nonlocal nature of the problem is…

Analysis of PDEs · Mathematics 2020-08-04 H. A. Erbay , S. Erbay , A. Erkip

We prove existence of the largest and the smallest entropy solutions to the Cauchy problem for a nonlinear degenerate anisotropic parabolic equation. Applying this result, we establish the comparison principle in the case when at least one…

Analysis of PDEs · Mathematics 2020-04-20 Evgeny Yu. Panov

This paper is concerned with a quaslinear parabolic equation including a nonlinear nonlocal initial condition. The problem arises as equilibrium equation in population dynamics with nonlinear diffusion. We make use of global bifurcation…

Analysis of PDEs · Mathematics 2015-06-05 Christoph Walker

The paper is devoted to the problem of existence of propagators for an abstract linear non-autonomous evolution Cauchy problem of hyperbolic type in separable Banach spaces. The problem is solved using the so-called evolution semigroup…

Mathematical Physics · Physics 2007-11-05 Hagen Neidhardt , Valentin A. Zagrebnov

We consider a nonlinear integro-differential equation for prion proliferation that includes prion polymerization, polymer splitting, and polymer joining. The equation can be written as a quasilinear Cauchy problem. For bounded reaction…

Analysis of PDEs · Mathematics 2017-03-27 Elena Leis , Christoph Walker

We study the question of the existence of infinitely many weak solutions for nonlocal equations of fractional Laplacian type with homogeneous Dirichlet boundary data, in presence of a superlinear term. Starting from the well-known…

Analysis of PDEs · Mathematics 2016-12-12 Giovanni Molica Bisci , Dušan Repovš , Raffaella Servadei

For a one-dimensional mildly quasilinear wave equation given in the upper half-plane, we consider the Cauchy problem. The initial conditions have discontinuity of the first kind at one point. We construct the solution using the method of…

Analysis of PDEs · Mathematics 2023-07-10 Viktor I. Korzyuk , Jan V. Rudzko

In this paper, we investigate abstract time-fractional evolution equations with nonlinear perturbations. We construct solutions of Lipschitz perturbation problems in arbitrary large time interval independent of the Lipschitz constants. We…

Analysis of PDEs · Mathematics 2021-09-21 Mizuki Kojima

In this paper, we study the existence of positive non-decreasing radial solutions of a nonlocal non-standard growth problem ruled by the fractional $g$-Laplace operator with exterior Neumann condition. Our argument exploits some properties…

Analysis of PDEs · Mathematics 2024-07-24 Remi Yvant Temgoua

This work addresses the problem of (global) maximal regularity for quasilinear evolution equations with sublinear gradient growth and right-hand side in Lebesgue spaces, complemented with Neumann boundary conditions. The proof relies on a…

Analysis of PDEs · Mathematics 2024-04-09 Alessandro Goffi , Tommaso Leonori

We study the existence of solutions of a nonlinear parabolic problem of Cauchy-Dirichlet type having a lower order term which depends on the gradient. The model we have in mind is the following: \[ \begin{cases}\begin{split} &…

Analysis of PDEs · Mathematics 2025-01-23 Martina Magliocca

Various aspects of the Cauchy problem for the Einstein equations are surveyed, with the emphasis on local solutions of the evolution equations. Particular attention is payed to giving a clear explanation of conceptual issues which arise in…

General Relativity and Quantum Cosmology · Physics 2011-04-21 H. Friedrich , A. D. Rendall

The paper deals with second order parabolic equations on bounded domains with Dirichlet conditions in arbitrary Euclidean spaces. Their interest comes from being models for describing reaction-diffusion processes in several frameworks. A…

Analysis of PDEs · Mathematics 2018-09-10 Irene Benedetti , Luisa Malaguti , Valentina Taddei

We show that hyperbolicity is a necessary condition for the well posedness of the noncharacteristic Cauchy problem for nonlinear partial differential equations. We give conditions on the initial data which are necessary for the existence of…

Analysis of PDEs · Mathematics 2007-05-23 Guy Metivier

The motivation of the present study is to discuss the global (in time) existence of small data solutions to the following semi-linear structurally damped $\sigma$-evolution models: \begin{equation*}…

Analysis of PDEs · Mathematics 2021-06-24 Khaldi Said , Arioui Fatima Zahra