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Cohomology in singular blocks of parabolic category
$\mathcal{O}$
Published online by Cambridge University Press: 15 May 2023
Abstract
We determine the dimensions of $\textrm{Ext}$-groups between simple modules and dual generalized Verma modules in singular blocks of parabolic versions of category
$\mathcal{O}$ for complex semisimple Lie algebras and affine Kac-Moody algebras.
- Type
- Research Article
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- Copyright
- © The Author(s), 2023. Published by Cambridge University Press on behalf of Glasgow Mathematical Journal Trust
References
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