分野別セミナー

Banagl's method of intersection spaces allows to modify certain singular spaces near the singular set in such a way that the rational Betti numbers of the modified spaces satisfy generalized Poincaré duality in analogy with Goresky-MacPherson's intersection homology theory. In this talk, we explain a new perspective on the topic by using tools of rational homotopy theory. Our approach includes a uniqueness result for commutative models, and the construction of a non-degenerate intersection pairing.

To join the seminar, please email to the following address.
tsutaya＠math.kyushu-u.ac.jp
I will send the participants the information to join the Zoom meeting later.