11 resultados para NONRELATIVISTIC LIMIT

em Bulgarian Digital Mathematics Library at IMI-BAS


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The paper suggests a classification of dynamic rule-based systems. For each class of systems, limit behavior is studied. Systems with stabilizing limit states or stabilizing limit trajectories are identified, and such states and trajectories are found. The structure of the set of limit states and trajectories is investigated.

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This work is supported by Bulgarian NFSI, grant No. MM–704/97

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We prove that in quadratic perturbations of generic Hamiltonian vector fields with two saddle points and one center there can appear at most two limit cycles. This bound is exact.

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2000 Mathematics Subject Classification: Primary 47A48, Secondary 60G12

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Марусия Н. Славчова-Божкова - В настоящата работа се обобщава една гранична теорема за докритичен многомерен разклоняващ се процес, зависещ от възрастта на частиците с два типа имиграция. Целта е да се обобщи аналогичен резултат в едномерния случай като се прилагат “coupling” метода, теория на възстановяването и регенериращи процеси.

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The classical Bienaymé-Galton-Watson (BGW) branching process can be interpreted as mathematical model of population dynamics when the members of an isolated population reproduce themselves independently of each other according to a stochastic law.

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2000 Mathematics Subject Classification: 60G70, 60F05.

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2000 Mathematics Subject Classi cation: 60K25 (primary); 60F05, 37A50 (secondary)

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2000 Mathematics Subject Classification: Primary 60F17, 60G52, 60G70 secondary 60E07, 62E20.

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2000 Mathematics Subject Classification: Primary 60J80, Secondary 60G99.