Results 1 to 10 of about 314 (46)
Journal of Inequalities and Applications, 2011 In this article, some inequalities on convolution equations are presented firstly. The mean square stability of the zero solution of the impulsive stochastic Volterra equation is studied by using obtained inequalities on Liapunov function, including mean
Zhao Dianli, Han Dong
doaj +2 more sources
Optimal Ergodic Harvesting under Ambiguity [PDF]
SIAM Journal of Control and Optimization, 2021 We consider an ergodic harvesting problem with model ambiguity that arises from biology. To account for the ambiguity, the problem is constructed as a stochastic game with two players: the decision-maker (DM) chooses the ‘best’ harvesting policy and an ...
A. Cohen, Alexandru Hening, Chuhao Sun
semanticscholar +1 more source
A Central Limit Theorem for Punctuated Equilibrium [PDF]
bioRxiv, 2016 Current evolutionary biology models usually assume that a phenotype undergoes gradual change. This is in stark contrast to biological intuition, which indicates that change can also be punctuated-the phenotype can jump.
K. Bartoszek
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Ecology and Evolution, Volume 11, Issue 20, Page 13961-13971, October 2021., 2021 We investigated the roosting ecology of two threatened island bats: the Ryukyu tube‐nosed bat Murina ryukyuana and Yanbaru whiskered bat Myotis yanbarensis. Murina ryukyuana roosted primarily in understory foliage, using tree cavities more often as maternity roosts, while M.
Jason H. Preble +3 more
wiley +1 more source
bioRxiv, 2021 The evolutionary mechanism that drove the establishment of self-incompatibility in early sexual eukaryotes is still a debated topic. While a number of competing hypotheses have been proposed, many have not received detailed theoretical attention.
Ashtyn Smith +4 more
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Computational and Mathematical Biophysics, 2023 This article consists of a detailed and novel stochastic optimal control analysis of a coupled non-linear dynamical system. The state equations are modelled as an additional food-provided prey–predator system with Holling type III functional response for
Prakash Daliparthi Bhanu +1 more
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Computational and Mathematical Biophysics, 2020 We present a methodology to connect an ordinary differential equation (ODE) model of interacting entities at the individual level, to an open Markov chain (OMC) model of a population of such individuals, via a stochastic differential equation (SDE ...
Esquível Manuel L. +2 more
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Optimal Control of Brownian Inventory Models with Convex Inventory Cost: Discounted Cost Case [PDF]
, 2011 We consider an inventory system in which inventory level uctuates as a Brownian motion in the absence of control. The inventory continuously accumulates cost at a rate that is a general convex function of the inventory level, which can be negative when ...
J. Dai, Dacheng Yao
semanticscholar +1 more source
The flashing ratchet and unidirectional transport of matter [PDF]
, 2010 We study the flashing ratchet model of a Brownian motor, which consists in cyclical switching between the Fokker-Planck equation with an asymmetric ratchet-like potential and the pure diffusion equation.
A. D. Polyanin +10 more
core +2 more sources
A scaling proof for Walsh's Brownian motion extended arc-sine law [PDF]
, 2012 We present a new proof of the extended arc-sine law related to Walsh's Brownian motion, known also as Brownian spider. The main argument mimics the scaling property used previously, in particular by D.
Vakeroudis, Stavros, Yor, Marc
core +4 more sources