Главная    Ex Libris    Книги    Журналы    Статьи    Серии    Каталог    Wanted    Загрузка    ХудЛит    Справка    Поиск по индексам    Поиск    Форум   
blank
Авторизация

       
blank
Поиск по указателям

blank
blank
blank
Красота
blank
Banach Z., Piekarski S. — Two Linearization Procedures for the Boltzmann Equation in a k = 0 Robertson-Walker Space-Time
Banach Z., Piekarski S. — Two Linearization Procedures for the Boltzmann Equation in a k = 0 Robertson-Walker Space-Time



Обсудите книгу на научном форуме



Нашли опечатку?
Выделите ее мышкой и нажмите Ctrl+Enter


Название: Two Linearization Procedures for the Boltzmann Equation in a k = 0 Robertson-Walker Space-Time

Авторы: Banach Z., Piekarski S.

Аннотация:

Journal of Statistical Physics. Vol. 76, Nos. 5/6, 1994, p. 1415-1437.
It is the aim of this paper to describe two different linearization procedures for the Boltzmann equation in a k=0 Robertson-Walker space-time. These procedures are discussed with a view to obtaining an asymptotic form of the Boltzmann equation for the late stages of cosmic expansion where the behavior appropriate to a nonrelativistic gas is encountered. Using the asymptotic kinetic equations, a necessary and sufficient condition is formulated under which every small perturbation of the equilibrium distribution function, either classical or relativistic, decays to zero as time goes on. The same condition can be extracted from each of two linearization procedures, and in this sense a comparison is made of these approaches which reveals mutual agreement. Also, applying an asymptotic theory of the Einstein-Boltzmann system, we show that the final state of a gas is dust (i.e., a fluid with zero temperature and pressure). Comparison with the predictions of the Eckart fluid model is briefly presented.


Язык: en

Рубрика: Физика/

Тип: Статья

Статус предметного указателя: Неизвестно

ed2k: ed2k stats

Год издания: 1994

Количество страниц: 23

Добавлена в каталог: 09.10.2013

Операции: Положить на полку | Скопировать ссылку для форума | Скопировать ID
blank
Предметный указатель
blank
Реклама
blank
blank
HR
@Mail.ru
       © Электронная библиотека попечительского совета мехмата МГУ, 2004-2023
Электронная библиотека мехмата МГУ | Valid HTML 4.01! | Valid CSS! О проекте