Results 11 to 20 of about 45,726 (269)
Asymptotic Spreading Fastened by Inter-Specific Coupled Nonlinearities: a Cooperative System [PDF]
Physica D: Nonlinear Phenomena, 2012 This paper is concerned with the asymptotic spreading of a Lotka-Volterra cooperative system. By using the theory of asymptotic spreading of nonautonomous equations, the asymptotic speeds of spreading of unknown functions formulated by a coupled system ...
Lin, Guo
core +3 more sources
Asymptotic spreading of predator-prey populations in a shifting environment
Mathematics in Applied Sciences and EngineeringInspired by a recent study associating shifting temperature conditions with changes in the efficiency with which predators convert prey to offspring, we propose a predator prey model of reaction-diffusion type to analyze the consequence of such effects ...
King-Yeung Lam, Ray Lee
doaj +3 more sources
Asymptotically Optimal Randomized Rumor Spreading [PDF]
Electronic Notes in Discrete Mathematics, 2011 We propose a new protocol solving the fundamental problem of disseminating a piece of information to all members of a group of n players. It builds upon the classical randomized rumor spreading protocol and several extensions. The main achievements are the following: Our protocol spreads the rumor to all other nodes in the asymptotically optimal time ...
Doerr, B., Fouz, M.
openaire +5 more sources
Randomly Spread CDMA: Asymptotics Via Statistical Physics [PDF]
IEEE Transactions on Information Theory, 2005 To be published in IEEE Transactions on Information ...
Guo, Dongning, Verdu, Sergio
openaire +2 more sources
Asymptotic analysis of axisymmetric drop spreading [PDF]
Physical Review E, 1998 We study in this paper the time evolution of the spreading process of a small drop in contact with a flat dry surface, using asymptotic techniques. We reduced the problem by solving a quasisteady self-similar macroscopic problem and matched with the precursor region solution, where the van der Waals forces are important.
Treviño, C. +2 more
openaire +3 more sources
Coefficient determination via asymptotic spreading speeds [PDF]
Inverse Problems, 2014 In this paper, we analyze the inverse problem of determining the reaction term f (x, u) in reaction-diffusion equations of the form ∂tu − D∂xxu = f (x, u), where f is assumed to be periodic with respect to x ∈ R. Starting from a family of exponentially decaying initial conditions u0,λ, we show that the solutions uλ of this equation propagate with ...
Cristofol, Michel +3 more
openaire +3 more sources
ASYMPTOTIC SPREADING IN A COMPETITION SYSTEM WITH NONLOCAL DISPERSAL
Journal of Applied Analysis & Computation, 2021 Summary: This paper is concerned with the long time behavior of a competition system with nonlocal dispersal. When the initial conditions of both unknown functions satisfy proper decay behavior, we obtain the rough spreading speed of one unknown function and show the upper and lower bounds of spreading speed of another unknown function.
Yang, Xiaoming, Lin, Guo, Yang, Jianing
openaire +2 more sources
Asymptotic Spreading for General Heterogeneous Fisher-KPP Type Equations
Memoirs of the American Mathematical Society, 2022 In this monograph, we review the theory and establish new and general results regarding spreading properties for heterogeneous reaction-diffusion equations: ∂ t u − ∑ i , j = 1 N
Berestycki, Henri, Nadin, Grégoire
openaire +2 more sources
Asymptotic behaviors for nonlocal diffusion equations about the dispersal spread [PDF]
Analysis and Applications, 2020 This paper studies the effects of the dispersal spread, which characterizes the dispersal range, on nonlocal diffusion equations with the nonlocal dispersal operator [Formula: see text] and Neumann boundary condition in the spatial heterogeneity environment.
Su, Yuan-Hang +2 more
openaire +2 more sources
Asymptotic prime divisors and analytic spreads [PDF]
Proceedings of the American Mathematical Society, 1980 Let I be an ideal in a Noetherian domain R, and let Î be the integral closure of I. Let A ^ ∗ ( I ) = Ass ( R /
openaire +1 more source