Evolution problems with hysteresis in the source term. (English) Zbl 0618.35053

Author’s abstract. Jump conditions having a hysteresis effect are introduced to model some inertial mechanisms which yield criteria of control of systems. Examples can be found in biology, chemistry, engineering, and economics.
Both orientations of the hysteresis loops are considered, corresponding to ”delay” and ”anticipation” between input and output variables.
Existence results are proved for parabolic and hyperbolic problems and also for the Stefan problem with a term of this type in the second member. A regularizing effect is exhibited by the ”jump with delay” condition.
Reviewer: V.Mustonen


35G10 Initial value problems for linear higher-order PDEs
35K25 Higher-order parabolic equations
35R10 Partial functional-differential equations
35R35 Free boundary problems for PDEs
35A05 General existence and uniqueness theorems (PDE) (MSC2000)
35A15 Variational methods applied to PDEs
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