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Differential symmetry breaking operators: I. General theory and F-method by Kobayashi, Toshiyuki, Pevzner, Michael

“…We prove a one-to-one correspondence between differential symmetry breaking operators for equivariant vector bundles over two homogeneous spaces and certain homomorphisms for representations of two…”
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Differential symmetry breaking operators: II. Rankin–Cohen operators for symmetric pairs by Kobayashi, Toshiyuki, Pevzner, Michael

“…Rankin–Cohen brackets are symmetry breaking operators for the tensor product of two holomorphic discrete series representations of S L ( 2 , R…”
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The parabolic exotic t-structure by Achar, Pramod N, Cooney, Nicholas, Riche, Simon N.

“… in geometric representation theory, including the proof of the graded Finkelberg-Mirkovic conjecture…”
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Stokes posets and serpent nests by Chapoton, Frédéric

“…30 pages, 12 figures We study two different objects attached to an arbitrary quadrangulation of a regular polygon. The first one is a poset, closely related to…”
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Smooth affine group schemes over the dual numbers by ROMAGNY, Matthieu, Tossici, Dajano

“…We provide an equivalence between the category of affine, smooth group schemes over the ring of generalized dual numbers $k[I]$, and the category of extensions…”
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Double loop algebras and elliptic root systems by Kenji Iohara, Hiroshi Yamada

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The Andrews–Stanley partition function and Al-Salam–Chihara polynomials by Ishikawa, Masao, Zeng, Jiang

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