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Related papers: Mass-conserving solutions to the Smoluchowski coag…

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We study multicomponent coagulation via the Smoluchowski coagulation equation under non-equilibrium stationary conditions induced by a source of small clusters. The coagulation kernel can be very general, merely satisfying certain power law…

Analysis of PDEs · Mathematics 2021-03-25 Marina A. Ferreira , Jani Lukkarinen , Alessia Nota , Juan J. L. Velázquez

It is well known that for a large class of coagulation kernels, Smoluchowski coagulation equations have particular power law solutions which yield a constant flux of mass along all scales of the system. In this paper, we prove that for some…

Analysis of PDEs · Mathematics 2022-07-26 Marina A. Ferreira , Jani Lukkarinen , Alessia Nota , Juan J. L. Velázquez

The well-posedness of the growth-coagulation equation is established for coagulation kernels having singularity near the origin and growing atmost linearly at infinity. The existence of weak solutions is shown by means of the method of the…

Analysis of PDEs · Mathematics 2024-08-06 Ankik Kumar Giri , Philippe Laurençot , Saroj Si

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…

Analysis of PDEs · Mathematics 2018-05-28 Prasanta Kumar Barik , Ankik Kumar Giri

We introduce an extended Smoluchowski equation describing coagulation processes for which clusters of mass s grow between collisions with $ds/dt=As^\beta$. A physical example, dropwise condensation is provided, and its collision kernel K is…

Statistical Mechanics · Physics 2009-10-30 Stephane Cueille , Clement Sire

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…

Analysis of PDEs · Mathematics 2025-04-02 Ram Gopal Jaiswal , Ankik Kumar Giri

We demonstrate an approach to solving the coagulation equation that involves using a finite number of moments of the particle size distribution. This approach is particularly useful when only general properties of the distribution, and…

Astrophysics · Physics 2009-11-13 Paul R. Estrada , Jeffrey N. Cuzzi

This work outlines an exact combinatorial approach to finite coagulating systems through recursive equations and use of generating function method. In the classic approach the mean-field Smoluchowski coagulation is used. However, the…

Statistical Mechanics · Physics 2021-04-16 Michał Łepek , Paweł Kukliński , Agata Fronczak , Piotr Fronczak

This paper presents the existence of global solutions to the discrete Safronov-Dubvoski\v{i} coagulation equations for a large class of coagulation kernels satisfying $\Lambda_{i,j} = \theta_i \theta_j + \kappa_{i,j}$ with $\kappa_{i,j}…

Analysis of PDEs · Mathematics 2022-07-26 Mashkoor Ali , 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…

Analysis of PDEs · Mathematics 2019-01-25 Philippe Laurençot

The critical coagulation-fragmentation equation with multiplicative coagulation and constant fragmentation kernels is known to not have global mass-conserving solutions when the initial mass is greater than $1$. We show that for any given…

Analysis of PDEs · Mathematics 2022-12-13 Hung V. Tran , Truong-Son Van

The continuous generalized exchange-driven growth model (CGEDG) is a coagulation-fragmentation equation that describes the evolution of the macroscopic cluster size distribution induced by a microscopic dynamic of binary exchanges of masses…

Analysis of PDEs · Mathematics 2025-09-08 Chun Yin Lam , André Schlichting

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…

Analysis of PDEs · Mathematics 2013-03-26 Ankik Kumar Giri

In this paper we prove the existence of a family of self-similar solutions for a class of coagulation equations with a constant flux of particles from the origin. These solutions are expected to describe the longtime asymptotics of…

Analysis of PDEs · Mathematics 2022-06-01 Marina A. Ferreira , Eugenia Franco , Juan J. L. Velázquez

Binary coagulation is an important process in aerosol dynamics by which two particles merge to form a larger one. The distribution of particle sizes over time may be described by the so-called Smoluchowski's coagulation equation. This…

Mathematical Physics · Physics 2021-06-25 Marina A. Ferreira

In this paper we show how the method of Zakharov transformations may be used to analyze the stationary solutions of the Smoluchowski aggregation equation for arbitrary homogeneous kernel. The resulting massdistributions are of Kolmogorov…

Statistical Mechanics · Physics 2009-11-10 Colm Connaughton , R. Rajesh , Oleg Zaboronski

In the present article we introduce a variant of Smoluchowski's coagulation equation with both position and velocity variables taking a kinetic viewpoint arising as the scaling limit of a system of second-order (microscopic) coagulating…

Analysis of PDEs · Mathematics 2022-11-15 Franco Flandoli , Ruojun Huang , Andrea Papini

We solve the standard Lifshitz-Slyozov (LS) model with conservation of total particles in the limit of small super-saturation. The new element is an effective initial condition that follows from the initial exhaustion of nucleation as…

Materials Science · Physics 2013-05-29 Yossi Farjoun , John C. Neu

The coagulation (or aggregation) equation was introduced by Smoluchowski in 1916 to describe the clumping together of colloidal particles through diffusion, but has been used in many different contexts as diverse as physical chemistry,…

Soft Condensed Matter · Physics 2022-12-27 J. Eggers , M. A. Fontelos

We derive a satisfying rate of convergence of the Marcus-Lushnikov process toward the solution to Smoluchowski's coagulation equation. Our result applies to a class of homogeneous-like coagulation kernels with homogeneity degree ranging in…

Probability · Mathematics 2011-03-10 Eduardo Cepeda , Nicolas Fournier