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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

In this article, we investigate the existence and uniqueness of weak solutions to the continuous coagulation equation with collisional breakage for a class of unbounded collision kernels and distribution function. The collision kernels and…

偏微分方程分析 · 数学 2018-06-12 Prasanta Kumar Barik , Ankik Kumar Giri

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

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

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

Existence of mass-conserving weak solutions to the coagulation-fragmentation equation is established when the fragmentation mechanism produces an infinite number of fragments after splitting. The coagulation kernel is assumed to increase at…

偏微分方程分析 · 数学 2018-04-25 Philippe Laurençot

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

Global weak solutions to the continuous Smoluchowski coagulation equation (SCE) are constructed for coagulation kernels featuring an algebraic singularity for small volumes and growing linearly for large volumes, thereby extending previous…

偏微分方程分析 · 数学 2018-04-04 Prasanta Kumar Barik , Ankik Kumar Giri , Philippe Laurençot

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

Existence of mass-conserving self-similar solutions with a sufficiently small total mass is proved for a specific class of homogeneous coagulation and fragmentation coefficients. The proof combines a dynamical approach to construct such…

偏微分方程分析 · 数学 2019-02-14 Philippe Laurençot

A mathematical model for the continuous nonlinear fragmentation equation is considered in the presence of mass transfer. In this paper, we demonstrate the existence of mass-conserving weak solutions to the nonlinear fragmentation equation…

偏微分方程分析 · 数学 2025-04-02 Ram Gopal Jaiswal , Ankik Kumar Giri

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

Existence of mass-conserving self-similar solutions to collision-induced breakage equation is shown for a specific class of homogeneous collision kernels and breakage functions. The proof mainly relies on a dynamical approach and…

偏微分方程分析 · 数学 2024-05-14 Ram Gopal Jaiswal , 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 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

A specific class of coagulation and fragmentation coefficients is considered for which the strength of the coagulation is balanced by that of the multiple fragmentation. Existence and uniqueness of mass-conserving solutions are proved when…

偏微分方程分析 · 数学 2019-01-25 Philippe Laurençot

Existence of global weak solutions to the continuous Oort-Hulst-Safronov (OHS) coagulation equation is investigated for coagulation kernels capturing a singularity near zero and growing linearly at infinity. The proof mainly relies on a…

偏微分方程分析 · 数学 2020-05-13 Prasanta Kumar Barik , Pooja Rai , Ankik Kumar Giri

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

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
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