The homotopy type of the cobordism category

The embedded cobordism category under study in this paper generalizes the category of conformal surfaces, introduced by G. Segal in [S2] in order to formalize the concept of field theories. Our main result identifies the homotopy type of the classifying space of the embedded d-dimensional cobordism...

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Chi tiết về thư mục
Những tác giả chính: Galatius, S, Madsen, I, Tillmann, U, Weiss, M
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2009
Miêu tả
Tóm tắt:The embedded cobordism category under study in this paper generalizes the category of conformal surfaces, introduced by G. Segal in [S2] in order to formalize the concept of field theories. Our main result identifies the homotopy type of the classifying space of the embedded d-dimensional cobordism category for all d. For d = 2, our results lead to a new proof of the generalized Mumford conjecture, somewhat different in spirit from the original one, presented in [MW]. © 2009 Institut Mittag-Leffler.