Аннотация:
В работе показано, что для гладкой компактификации факторпространства линейного пространства $V$ по действию линейной алгебраической группы $G$ бирациональный инвариант Артина–Мамфорда $\operatorname{Br}_v(V/G) = H^3(V/G,Z)_{\text{tors}}$ может быть явно вычислен в терминах двумерных когомологий $H^2(G,Q/Z)$ группы $G$.
Исследованы примеры групп $G$ с ненулевым инвариантом $\operatorname{Br}_v(V/G)$.
Библиография: 6 названий.
Образец цитирования:
Ф. А. Богомолов, “Группа Брауэра факторпространств линейных представлений”, Изв. АН СССР. Сер. матем., 51:3 (1987), 485–516; Math. USSR-Izv., 30:3 (1988), 455–485
\RBibitem{Bog87}
\by Ф.~А.~Богомолов
\paper Группа Брауэра факторпространств линейных представлений
\jour Изв. АН СССР. Сер. матем.
\yr 1987
\vol 51
\issue 3
\pages 485--516
\mathnet{http://mi.mathnet.ru/im1306}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=903621}
\zmath{https://zbmath.org/?q=an:0679.14025|0641.14005}
\transl
\jour Math. USSR-Izv.
\yr 1988
\vol 30
\issue 3
\pages 455--485
\crossref{https://doi.org/10.1070/IM1988v030n03ABEH001024}
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/im1306
https://www.mathnet.ru/rus/im/v51/i3/p485
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