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Stable semi-groups of measures as commutative approximate identities of non-graded homogeneous groups - MaRDI portal

Stable semi-groups of measures as commutative approximate identities of non-graded homogeneous groups (Q1077659)

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scientific article; zbMATH DE number 3957908
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Stable semi-groups of measures as commutative approximate identities of non-graded homogeneous groups
scientific article; zbMATH DE number 3957908

    Statements

    Stable semi-groups of measures as commutative approximate identities of non-graded homogeneous groups (English)
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    1986
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    The author extends to non-graded homogeneous groups the construction of a commutative approximate identity performed by Folland and Stein in the case of graded ones [\textit{G. B. Folland} and \textit{E. M. Stein}, Hardy spaces on homogeneous groups (1982; Zbl 0508.42025)]. The idea is to construct the commutative approximate identity as a stable semigroup of smooth measures, whose infinitesimal generator plays the role of the Rockland operator in Folland and Stein's construction.
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    Schwartz function
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    homogeneous groups
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    commutative approximate identity
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    semigroup of smooth measures
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    Rockland operator
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