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math.RT2023
The semi-infinite cohomology of Weyl modules with two singular points
Giorgia Fortuna, Davide Lombardo, Andrea Maffei +1
In their study of spherical representations of an affine Lie algebra at the critical level and of unramified opers, Frenkel and Gaitsgory introduced what they called the Weyl modul…
math.RT2020
Local opers with two singularities: the case of
Giorgia Fortuna, Davide Lombardo, Andrea Maffei +1
We study local opers with two singularities for the case of the Lie algebra sl(2), and discuss their connection with a two-variables extension of the affine Lie algebra. We prove a…