Algebraic realization of K-bi-invariant functions on supergroups via Hopf structure, with radial restriction shown to inject into S(a)* and a basis for the coideal in (gl(1|2), osp(1|2)) connected to Bernoulli and Euler zigzag numbers.
On the Harish-Chandra homomorphism
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Radial restriction of spherical functions on supergroups
Algebraic realization of K-bi-invariant functions on supergroups via Hopf structure, with radial restriction shown to inject into S(a)* and a basis for the coideal in (gl(1|2), osp(1|2)) connected to Bernoulli and Euler zigzag numbers.