Sequences of semigroups of nonlinear operators and their applications to study the cauchy problem for parabolic equations
Journal Title: Вісник Тернопільського національного технічного університету - Year 2016, Vol 84, Issue 4
Abstract
We consider the operator function of exponential type, studied the link between these functions (semigroup) and Cauchy problem for differential parabolic equation. We establish conditions under which the semigroup is associated with Cauchy problem; we investigate semigroups sequences and their convergence to function of exponential type which is semigroup. We consider maximal dissipative operators and maximum semigroups. We study the problem of existence of the solution of nonlinear partial differential equations of parabolic type with measurable coefficients, nonlinear term which satisfies the forms – bouded conditions
Authors and Affiliations
Mikola Yaremenko
Energy and integrated method in evaluation of working life of supporting systems for mobile agricultural machines
This paper analyzes the structural uncertainty disclosure of static structures modified by potential energy minimum deformation (MMPED). In general, the potential energy of deformation consists of several components, nam...
Thermo-mechanical criterion of generation of wear particles for volumetric stress
The model of friction and wear surfaces is constructed based on theory of mechanical frictional interaction. The state of stress and kind of the surface layers fracture is analyzed. Longevity of mobile connections is est...
Fracture pecularities of prestressed steel reinforcement under hydrogenation in the model working medium
Pecularities of fracture behaviour of progressively drawn pearlitic steels from the initial hot rolled bar (not cold drawn at all) to the final commercial product (prestressing steel wire) were investigated in air and un...
Interrelation and kinetics of matersals fatigue damage under strain- and stress-control loading modes
In the article the calculating estimation of fatigue damage and plasto-elastic stress-strain state (SSS) kinetics of steels under the “rigid” cyclic loading modes using the ultimate exhaustion of cyclic plasticity (UECP)...
Analysis of resonant inverter with parametric maintenance of load power
High-frequency voltage resonant inverters traditionally realize the functions of load voltage or current control and stabilization. But there is a wide application area which needs to stabilize a load power rather then i...