Amenability and weak amenability of l¹-algebras of polynomial hypergroups
Rupert Lasser (2007)
Studia Mathematica
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We investigate amenability and weak amenability of the l¹-algebra of polynomial hypergroups. We derive conditions for (weak) amenability adapted to polynomial hypergroups and show that these conditions are often not satisfied. However, we prove amenability for the hypergroup induced by the Chebyshev polynomials of the first kind.