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Онлайн-семинар: Фёдор Манин

Мероприятие завершено

Семинар состоится 20 августа 2020 г.

На семинаре выступит Фёдор Манин с докладом Безмасштабные пространства

Аннотация: Formal spaces are a (homotopy-theoretic) class of simply connected spaces defined by Sullivan, one characterization of which is that they have many topologically well-behaved self-maps.  Probably all the simply connected manifolds you can name are formal.  We (Sasha Berdnikov and I) found that sometimes you can force the self-maps to also behave well geometrically (think of them as scalings), and sometimes you can't (and this is also a purely homotopical property).  This has various implications in quantitative homotopy theory, a program emphasized by Gromov which I will explain.