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Existence and uniqueness of weak solutions to the collision-induced breakage and coag-ulation equation are shown when coagulation is the dominant mechanism for small volumes. The collision kernel may feature a stronger singularity for small…

偏微分方程分析 · 数学 2021-10-06 Ankik Kumar Giri , Philippe Laurençot

Existence and uniqueness of mass-conserving classical solutions to the continuous coagulation equation with collisional breakage are investigated for an unbounded class of collision kernels and a particular case of the distribution…

偏微分方程分析 · 数学 2018-08-23 Prasanta Kumar Barik , Ankik Kumar Giri

In this article, the existence of mass-conserving solutions is investigated to the continuous coagulation and collisional breakage equation with singular coagulation kernels. Here, the probability distribution function attains singularity…

偏微分方程分析 · 数学 2019-11-04 Prasanta Kumar Barik , Ankik Kumar Giri , Rajesh Kumar

A global existence theorem on weak solutions is shown for the continuous coagulation equation with collisional breakage under certain classes of unbounded collision kernels and distribution functions. This model describes the dynamics of…

偏微分方程分析 · 数学 2018-05-28 Prasanta Kumar Barik , Ankik Kumar Giri

An existence result on weak solutions to the continuous coagulation equation with collision-induced multiple fragmentation is established for certain classes of unbounded coagulation, collision and breakup kernels. In this model, a pair of…

偏微分方程分析 · 数学 2018-02-27 Prasanta Kumar Barik , Ankik Kumar Giri

In this article, the uniqueness of weak solutions to the continuous coagulation and multiple fragmentation equation is proved for a large range of unbounded coagulation and multiple fragmentation kernels. The multiple fragmentation kernels…

偏微分方程分析 · 数学 2013-03-26 Ankik Kumar Giri

The existence of weak solutions to the continuous coagulation equation with multiple fragmentation is shown for a class of unbounded coagulation and fragmentation kernels, the fragmentation kernel having possibly a singularity at the…

偏微分方程分析 · 数学 2011-01-24 Ankik Kumar Giri , Philippe Laurencot , Gerald Warnecke

In this article, the existence of global classical solutions to the discrete coagulation equations with collisional breakage is established for collisional kernel having linear growth whereas the uniqueness is shown under additional…

偏微分方程分析 · 数学 2022-08-16 Mashkoor Ali , Ankik Kumar Giri

A mathematical model for collision-induced breakage is considered. Existence of weak solutions to the continuous nonlinear collision-induced breakage equation is shown for a large class of unbounded collision kernels and daughter…

偏微分方程分析 · 数学 2021-10-05 Ankik Kumar Giri , Philippe Laurençot

In this article we prove the existence of solutions to the coagulation equation with singular kernels. We use weighted L^1-spaces to deal with the singularities in order to obtain regular solutions. The Smoluchowski kernel is covered by our…

数学物理 · 物理学 2014-01-22 Carlos Cueto Camejo , Robin Gröpler , Gerald Warnecke

The present paper deals with the existence and uniqueness of global classical solutions to the continuous coagulation and nonlinear multiple fragmentation equations for large classes of unbounded coagulation, collision and breakup kernels.…

偏微分方程分析 · 数学 2018-02-27 Prasanta Kumar Barik , Ankik Kumar Giri

In this article we prove the existence of solutions to the singular coagulation equation with multifragmentation. We use weighted $L^1$-spaces to deal with the singularities and to obtain regular solutions. The Smoluchowski kernel is…

数学物理 · 物理学 2013-10-30 Carlos Cueto Camejo , Gerald Warnecke

In this paper, existence and uniqueness of solutions to a non-linear, initial value problem is studied. In particular, we consider a special type of problem which physically represents the time evolution of particle number density resulted…

偏微分方程分析 · 数学 2017-11-27 Jitraj Saha , Jitendra Kumar

A mathematical model for the discrete nonlinear fragmentation (collision-induced breakage) equation with diffusion is studied. The existence of global weak solutions is established in arbitrary spatial dimensions without assuming a strictly…

偏微分方程分析 · 数学 2026-03-12 Saumyajit Das , Ram Gopal Jaiswal

A discrete version of the nonlinear collision-induced breakage equation is studied. Existence of solutions is investigated for a broad class of unbounded collision kernels and daughter distribution functions, the collision kernel $a_{i,j}$…

经典分析与常微分方程 · 数学 2023-01-26 Mashkoor Ali , Ankik Kumar Giri , Philippe Laurencot

This article is devoted to the study of existence of a mass conserving global solution for the collision-induced nonlinear fragmentation model which arises in particulate processes, with the singular type of collision kernel. The above…

偏微分方程分析 · 数学 2022-01-27 Debdulal Ghosh , Jayanta Paul , Jitendra Kumar

Collisional breakage in the particulate process has a lot of recent curiosity. We study the pure collisional breakage equation which is nonlinear in nature accompanied by locally bounded breakage kernel and collision kernel. The continuous…

数值分析 · 数学 2022-10-11 Sanjiv Kumar Bariwal , Ankik Kumar Giri , Rajesh Kumar

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…

偏微分方程分析 · 数学 2018-11-16 Prasanta Kumar Barik

We prove the existence of weak solutions for distribution-dependent stochastic Volterra equations under linear growth and continuity conditions on the coefficients and mild regularity assumptions on the kernels, including singular kernels.…

概率论 · 数学 2026-04-28 Martin Bergerhausen , David J. Prömel

Existence, non-existence, and uniqueness of mass-conserving weak solutions to the continuous collision-induced nonlinear fragmentation equations are established for the collision kernels $\Phi$ satisfying $\Phi(x_1,x_2)={x_1}^{\lambda_1}…

偏微分方程分析 · 数学 2024-01-22 Ankik Kumar Giri , Ram Gopal Jaiswal , Philippe Laurençot
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