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In this article we correct the proof of a uniqueness result for self-similar solutions to Smoluchowski's coagulation equation for kernels $K=K(x,y)$ that are homogeneous of degree zero and close to constant in the sense that…

Analysis of PDEs · Mathematics 2017-06-28 Barbara Niethammer , Sebastian Throm , Juan J. L. Velázquez

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…

Analysis of PDEs · Mathematics 2018-04-04 Prasanta Kumar Barik , Ankik Kumar Giri , Philippe Laurençot

We consider self-similar solutions with finite mass to Smoluchowski's coagulation equation for rate kernels that have homogeneity zero but are possibly singular such as Smoluchowski's original kernel. We prove pointwise exponential decay of…

Analysis of PDEs · Mathematics 2013-10-18 Barbara Niethammer , Juan J. L. Velazquez

We have performed a series of three-dimensional hydrodynamic calculations of binary coalescence using the smoothed particle hydrodynamics (SPH) method. The initial conditions are exact polytropic equilibrium configurations with $\gam >…

Astrophysics · Physics 2011-07-18 F. A. Rasio , S. L. Shapiro

We describe the large-scale collective behavior of solutions of polar biofilaments and both stationary and mobile crosslinkers. Both mobile and stationary crosslinkers induce filament alignment promoting either polar or nematic order. In…

Soft Condensed Matter · Physics 2009-11-11 Aphrodite Ahmadi , M. Cristina Marchetti , T. B. Liverpool

In this note, we present a novel connection between a multi-type (vector) multiplicative coalescent process and a multi-type branching process with Poisson offspring distributions. More specifically, we show that the equations that govern…

Probability · Mathematics 2025-10-28 Heshan Aravinda , Yevgeniy Kovchegov , Peter T. Otto , Amites Sarkar

In this paper, we study the spatially homogeneous inelastic Boltzmann equation for the angular cutoff pseudo-Maxwell molecules with an additional term of linear deformation. We establish the existence of non-Maxwellian self-similar profiles…

Analysis of PDEs · Mathematics 2025-12-03 José A. Carrillo , Kam Fai Chan , Renjun Duan , Zongguang Li

We study a chemical gelation model in two dimensions which includes both monomer aggregations and bond fluctuations. Our numerical simulation shows that a sol-gel transition occurs when an initial monomer concentration is above a critical…

Soft Condensed Matter · Physics 2007-05-23 Kenji Ohira , Masatoshi Sato , Mahito Kohmoto

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…

Analysis of PDEs · Mathematics 2018-02-27 Prasanta Kumar Barik , Ankik Kumar Giri

The binodals and the non-ergodicity lines of a binary mixture of hard sphere-like particles with large size ratio are computed for studying the interplay between dynamic arrest and phase separation in depletion-driven colloidal mixtures.…

Soft Condensed Matter · Physics 2009-11-13 Ph. Germain , S. Amokrane

In this work, we prove a two-scale homogenization result for a set of diffusion-coagulation Smoluchowski-type equations with transmission boundary conditions. This system is meant to describe the aggregation and diffusion of pathological…

Analysis of PDEs · Mathematics 2024-01-09 Bruno Franchi , Silvia Lorenzani

In this paper, we investigate the use of so called "duality lemmas" to study the system of discrete coagulation-fragmentation equations with diffusion. When the fragmentation is strong enough with respect to the coagulation, we show that we…

Analysis of PDEs · Mathematics 2017-02-24 Maxime Breden

We prove uniform bounds on moments X_a = \sum_{m}{m^a f_m(x,t)} of the Smoluchowski coagulation equations with diffusion, valid in any dimension. If the collision propensities \alpha(n,m) of mass n and mass m particles grow more slowly than…

Analysis of PDEs · Mathematics 2009-11-11 Alan Hammond , Fraydoun Rezakhanlou

Colloid-polymer mixtures can undergo spinodal decomposition into colloid-rich and colloid-poor regions. Gelation results when interconnected colloid-rich regions solidify. We show that this occurs when these regions undergo a glass…

Soft Condensed Matter · Physics 2009-11-10 S. Manley , H. M. Wyss , K. Miyazaki , J. C. Conrad , V. Trappe , L. J. Kaufman , D. R. Reichman , D. A. Weitz

Using molecular dynamics simulations, the kinetics of bundle formation for stiff polyelectrolytes such as actin is studied in the solution of multivalent salt. The dominant kinetic mode of aggregation is found to be the case of one end of…

Soft Condensed Matter · Physics 2007-10-06 Hossein Fazli , Ramin Golestanian

Smoluchowski's equation is a macroscopic description of a many particle system with coagulation and shattering interactions. We give a microscopic model of the system from which we derive this equation rigorously. Provided the existence of…

Probability · Mathematics 2018-04-26 Stefan Grosskinsky , Christian Klingenberg , Karl Oelschlaeger

We introduce a reversible Markovian coagulation-fragmentation process on the set of partitions of $\{1,\ldots,L\}$ into disjoint intervals. Each interval can either split or merge with one of its two neighbors. The invariant measure can be…

Probability · Mathematics 2013-11-27 Cedric Bernardin , Fabio Lucio Toninelli

We study the long-time behaviour of the solutions to Smoluchowski coagulation equations with a source term of small clusters. The source drives the system out-of-equilibrium, leading to a rich range of different possible long-time…

Mathematical Physics · Physics 2023-05-29 Marina A. Ferreira , Eugenia Franco , Jani Lukkarinen , Alessia Nota , Juan J. L. Velázquez

In this article a stochastic particle system approximation to the parametric sensitivity in the Smoluchowski coagulation equation is introduced. The parametric sensitivity is the derivative of the solution to the equation with respect to…

Probability · Mathematics 2016-09-08 I. Bailleul , P. L. W. Man , M. Kraft

An exact analytical solution of the statistical multifragmentation model is found in thermodynamic limit. The model exhibits a 1-st order phase transition of the liquid-gas type. The mixed phase region of the phase diagram, where the gas of…

Nuclear Theory · Physics 2009-11-06 K. A. Bugaev , M. I. Gorenstein , I. N. Mishustin , W. Greiner
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