Gelfand-Tsetlin algebras and cohomology rings of Laumon spaces

Boris Feigin, Michael Finkelberg, Igor Frenkel, Leonid Rybnikov

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Laumon moduli spaces are certain smooth closures of the moduli spaces of maps from the projective line to the flag variety of GLn. We calculate the equivariant cohomology rings of the Laumon moduli spaces in terms of Gelfand-Tsetlin subalgebra of U(gln) and formulate a conjectural answer for the small quantum cohomology rings in terms of certain commutative shift of argument subalgebras of U(gln).

Original languageEnglish
Pages (from-to)337-361
Number of pages25
JournalSelecta Mathematica, New Series
Issue number2
Publication statusPublished - Jun 2011
Externally publishedYes


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