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Stratonovich-Weyl correspondence for discrete series representations

Benjamin Cahen (2011)

Archivum Mathematicum

Let M = G / K be a Hermitian symmetric space of the noncompact type and let π be a discrete series representation of G holomorphically induced from a unitary character of K . Following an idea of Figueroa, Gracia-Bondìa and Vàrilly, we construct a Stratonovich-Weyl correspondence for the triple ( G , π , M ) by a suitable modification of the Berezin calculus on M . We extend the corresponding Berezin transform to a class of functions on M which contains the Berezin symbol of d π ( X ) for X in the Lie algebra 𝔤 of G . This allows...

Strict topologies and Banach-Steinhaus type theorems

Marian Nowak (2009)

Commentationes Mathematicae Universitatis Carolinae

Let X be a completely regular Hausdorff space, E a real Banach space, and let C b ( X , E ) be the space of all E -valued bounded continuous functions on X . We study linear operators from C b ( X , E ) endowed with the strict topologies β z ( z = σ , ...

Strict topologies as topological algebras

Surjit Singh Khurana (2001)

Czechoslovak Mathematical Journal

Let X be a completely regular Hausdorff space, C b ( X ) the space of all scalar-valued bounded continuous functions on X with strict topologies. We prove that these are locally convex topological algebras with jointly continuous multiplication. Also we find the necessary and sufficient conditions for these algebras to be locally m -convex.

Strict u-ideals in Banach spaces

Vegard Lima, Åsvald Lima (2009)

Studia Mathematica

We study strict u-ideals in Banach spaces. A Banach space X is a strict u-ideal in its bidual when the canonical decomposition X * * * = X * X is unconditional. We characterize Banach spaces which are strict u-ideals in their bidual and show that if X is a strict u-ideal in a Banach space Y then X contains c₀. We also show that is not a u-ideal.

Strictly cyclic algebra of operators acting on Banach spaces H p ( β )

Bahmann Yousefi (2004)

Czechoslovak Mathematical Journal

Let { β ( n ) } n = 0 be a sequence of positive numbers and 1 p < . We consider the space H p ( β ) of all power series f ( z ) = n = 0 f ^ ( n ) z n such that n = 0 | f ^ ( n ) | p β ( n ) p < . We investigate strict cyclicity of H p ( β ) , the weakly closed algebra generated by the operator of multiplication by z acting on H p ( β ) , and determine the maximal ideal space, the dual space and the reflexivity of the algebra H p ( β ) . We also give a necessary condition for a composition operator to be bounded on H p ( β ) when H p ( β ) is strictly cyclic.

Strictly singular inclusions of rearrangement invariant spaces and Rademacher spaces

Sergei V. Astashkin, Francisco L. Hernández, Evgeni M. Semenov (2009)

Studia Mathematica

If G is the closure of L in exp L₂, it is proved that the inclusion between rearrangement invariant spaces E ⊂ F is strictly singular if and only if it is disjointly strictly singular and E ⊊ G. For any Marcinkiewicz space M(φ) ⊂ G such that M(φ) is not an interpolation space between L and G it is proved that there exists another Marcinkiewicz space M(ψ) ⊊ M(φ) with the property that the M(ψ) and M(φ) norms are equivalent on the Rademacher subspace. Applications are given and a question of Milman...

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