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====== Speaker: Chris Eppolito (Binghamton) ======

====== Title: Extension Spaces of Strongly Euclidean Oriented Matroids ======

===== Combinatorics Seminar, Tuesday, March 10, 2020 =====

Following work of B. Sturmfels and G. Ziegler, I give a proof that the extension space of a strongly euclidean oriented matroid of rank $r$ is homotopy equivalent to the $(r-1)$-sphere.