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math.RT2023
Topological semiinfinite tensor (super)modules
Francesco Esposito, Ivan Penkov
We construct universal monoidal categories of topological tensor supermodules over the Lie superalgebras and associated wit…
math.RT2022
A parametrization of sheets of conjugacy classes in bad characteristic
Filippo Ambrosio, Giovanna Carnovale, Francesco Esposito
Let G be a simple algebraic group of adjoint type over an algebraically closed field of bad characteristic. We show that its sheets of conjugacy classes are parametrized by G-conju…
math.RT2021
Motzkin combinatorics in linear degenerations of the flag variety
Giovanni Cerulli Irelli, Francesco Esposito, Mario Marietti
We establish an explicit combinatorial/homological characterization of supports for linear degenerations of flag varieties. For such purpose, we introduce the concept of an excessi…