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Zero Weight Space for Tori Inside a Division Algebra
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Let F be a non-Archimedean local field of residue characteristic p. Consider a division algebra D over F of index π, where π is an odd prime and π= p. Let Ξ be an irreducible representation of Dβ with trivial central character. Let K/F be any field extension of degree π in D. We compute the complex dimension of Kβ-invariant vectors of Ο as both Ξ and K vary.
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