Classification theory for abstract elementary classes, Shelah, Saharon

Автор: Shelah, Saharon
Название: Classification theory for abstract elementary classes
ISBN: 1904987710 ISBN-13(EAN): 9781904987710
Издательство: Неизвестно
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Описание: An abstract elementary class is a class of structures of the same vocabulary (like a class of rings, or a class of fields), with a partial order that generalizes the relation "A is a substructure (or an elementary substructure) of B". The requirements are that the class is closed under isomorphism, and that isomorphic structures have isomorphic (generalized) substructures; we also require that our classes share some of the most basic properties of elementary classes, like closure under unions of increasing chains of substructures. We would like to classify this general family; in the sense of proving dichotomies: either we can understand the structure of all models in our class or there are many to some extent. More specifically we would like to generalize the theory about categoricity and superstability to this context.

Автор: Leader Shelah Gilbert, Hyatt Patricia Rusch
Название: American Women on the Move: The Inside Story of the National Women`s Conference, 1977
ISBN: 1498535992 ISBN-13(EAN): 9781498535991
Издательство: Bloomsbury
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Описание: This study analyzes the social and political impact of the 1977 National Women`s Conference. It provides a behind-the-scenes account of this landmark event four decades later and examines how conference delegates discussed the range of barriers to women`s equality, debated solutions, and proposed remedies.