On the MacPhersonian
نویسنده
چکیده
In 2003 Daniel K. Biss published, in the Annals of Mathematics [1], what he thought was a solution of a long standing problem culminating a discovery by Gelfand and MacPherson [3]. Six years later he was encouraged to publish an “erratum” of his prove [2], observed by Nikolai Mnëv; up to now, the homotopy type of the MacPhersonian had remained a mistery... The aim of this lecture is to convince the attendee of the fact that, using a compleatly different aproach to those used before, we can prove that the (acyclic) MacPhersonian has the homotopy type of the (affine) Grassmannian.
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تاریخ انتشار 2015