Results 31 to 40 of about 340,916 (149)
, 2016 We prove that the Newton quotient of the average R(t) of a lipschitzian function (with non vanishing variation) with respect to the SRB measure on a transversal family f_t of piecewise expanding unimodal maps, after an appropriated normalization ...
de Lima, Amanda, Smania, Daniel
core +1 more source
International Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.In ecological point of view, fears from predator may reduce the reproduction of prey and harvesting and intraspecific competition among predators, may changes the behavior of dynamical interaction between predator and their prey. In this paper, a Holling Type II prey–predator model with SI‐type of disease in prey has been modified and analyzed. Firstly,
Sozan Fuad Aziz +4 more
wiley +1 more source
New sufficient conditions of existence, moment estimations and non confluence for SDEs with non-Lipschitzian coefficients [PDF]
, 2014 The objective of the present paper is to find new sufficient conditions for the existence of unique strong solutions to a class of (time-inhomogeneous) stochastic differential equations with random, non-Lipschitzian coefficients.
Guangqiang Lan, Jiang-Lun Wu
semanticscholar +1 more source
The Dynamical Analysis of Food‐Web System With a Group Defense and Antipredator Property
International Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.Prey employ group defense as a tactic to increase their chances of escaping predator attacks. Antipredator behavior, which involves synchronized movements and heightened awareness to deceive predators, may result from it. When one prey species has group defensive systems while the other does not, there is a complex interaction between two competing ...
Rasha Ali Hamodi +4 more
wiley +1 more source
Local Bifurcation and Global Stability of Two‐Prey‐One‐Predator Model
International Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.This paper deals with dynamical analysis of an ecological model. This model includes two logistically growing prey species, namely, Prey X and Prey Y, and the third species Z behaves as the predator, predating both Prey X and Prey Y according to the extended Holling type‐II functional response.
Hanaa Jamal Ahmed +4 more
wiley +1 more source
Journal of Applied Mathematics, Volume 2025, Issue 1, 2025.In an ecological point of view, fears from predator cause physiological changes of prey population and these physiological changes may reduce the reproduction of prey. This paper deals with studying the effect of fear that is incorporated in the growth rate of prey on the dynamics of a delay ecological model consisting of two logistically growing prey ...
Hersh Aziz Mohammed +2 more
wiley +1 more source
Journal of Mathematics, Volume 2025, Issue 1, 2025.Considering the low cost and minimal environmental impact, nonlinear impulsive biological control strategies are more consistent with the pest management. From this basic standpoint, we formulate a pest control model incorporating delayed stage structure for the pest population and nonlinear impulsive release of natural enemies, and then conduct a ...
Guiyu Wu +3 more
wiley +1 more source
Harnack inequalities for stochastic (functional) differential equations with non-Lipschitzian coefficients [PDF]
, 2012 By using coupling arguments, Harnack type inequalities are established for a class of stochastic (functional) differential equations with multiplicative noises and non-Lipschitzian coefficients.
J. Shao, Feng-Yu Wang, C. Yuan
semanticscholar +1 more source
Mathematical Methods in the Applied Sciences, Volume 47, Issue 4, Page 2030-2055, 15 March 2024.The main objective of this work is to investigate the existence of mild solutions and approximate controllability for some integrodifferential evolution equations with nonlocal conditions. Assuming that the linear part is exactly null and approximately controllable, using resolvent operator theory, we provide our main results.
Mohammed Elghandouri, Khalil Ezzinbi
wiley +1 more source
A Second‐Order Finite‐Difference Method for Derivative‐Free Optimization
Journal of Mathematics, Volume 2024, Issue 1, 2024.In this paper, a second‐order finite‐difference method is proposed for finding the second‐order stationary point of derivative‐free nonconvex unconstrained optimization problems. The forward‐difference or the central‐difference technique is used to approximate the gradient and Hessian matrix of objective function, respectively.
Qian Chen +3 more
wiley +1 more source