Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1303-4733-8 |
Объём: | 104 страниц |
Масса: | 178 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! In mathematics, a principal homogeneous space, or torsor, for a group G is a homogeneous space X for G such that the stabilizer subgroup of any point is trivial. Equivalently, a principal homogeneous space for a group G is a set X on which G acts freely and transitively, so that for any x, y in X there exists a unique g in G such that x·g = y where · denotes the (right) action of G on X. An analogous definition holds in other categories where, for example, * G is a topological group, X is a topological space and the action is continuous, * G is a Lie group, X is a smooth manifold and the action is smooth, * G is an algebraic group, X is an algebraic variety and the action is regular.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.