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Homoclinic orbits in a two-patch predator-prey model with Preisach hysteresis operator

Alexander Pimenov, Dmitrii Rachinskii (2014)

Mathematica Bohemica

Systems of operator-differential equations with hysteresis operators can have unstable equilibrium points with an open basin of attraction. Such equilibria can have homoclinic orbits attached to them, and these orbits are robust. In this paper a population dynamics model with hysteretic response of the prey to variations of the predator is introduced. In this model the prey moves between two patches, and the derivative of the Preisach operator is used to describe the hysteretic flow between the...

Homogenization of diffusion equation with scalar hysteresis operator

Jan Franců (2001)

Mathematica Bohemica

The paper deals with a scalar diffusion equation c u t = ( F [ u x ] ) x + f , where F is a Prandtl-Ishlinskii operator and c , f are given functions. In the diffusion or heat conduction equation the linear constitutive relation is replaced by a scalar Prandtl-Ishlinskii hysteresis spatially dependent operator. We prove existence, uniqueness and regularity of solution to the corresponding initial-boundary value problem. The problem is then homogenized by considering a sequence of equations of the above type with spatially periodic...

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