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arXiv 0908.3917math.APmath.RT
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幂零李群表示的符号调制空间

Modulation spaces of symbols for representations of nilpotent Lie groups

Ingrid Beltita, Daniel Beltita

摘要:

我们研究了由N. V. Pedersen(Invent. 118(1994),1- 36)对于幂零李群的任意不可约表示。为此,我们引入调制空间,这样的表示,并建立他们的一些基本性质。平方可积〔的〕的情况是特别重要的,在特殊情况下的海森堡群的薛定谔表示,我们恢复的经典调制空间中使用的时间-频率分析。

英文摘要:

We investigate continuity properties of operators obtained as values of the Weyl correspondence constructed by N.V. Pedersen (Invent. Math. 118 (1994), 1--36) for arbitrary irreducible representations of nilpotent Lie groups. To this end we introduce modulation spaces for such representations and establish some of their basic properties. The situation of square integrable representations is particularly important and in the special case of the Schrödinger representation of the Heisenberg group we recover the classical modulation spaces used in the time-frequency analysis.

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