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Семинар лаборатории алгебраических групп преобразований НИУ ВШЭ
23 июня 2025 г. 18:00, г. Москва, Покровский б-р, д. 11, ауд. G110


Finite-orbit compactifications of additive groups associated to subspace arrangements

C. Simpson

Institute for Advanced Study, Princeton, USA

Аннотация: Recent advances in combinatorics have been enabled by the study of "matroid Schubert varieties", a kind of finite-orbit compactification of $\mathbb{G}_a^n$ that arises from hyperplane arrangements. We will theory of these varieties, then discuss a recent generalization to subspace arrangements. This work is joint with Colin Crowley & Botong Wang.


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