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Displaying 1261 – 1280 of 2299

On Ditkin sets

T. Muraleedharan, K. Parthasarathy (1996)

Colloquium Mathematicae

In the study of spectral synthesis S-sets and C-sets (see Rudin [3]; Reiter [2] uses the terminology Wiener sets and Wiener-Ditkin sets respectively) have been discussed extensively. A new concept of Ditkin sets was introduced and studied by Stegeman in [4] so that, in Reiter’s terminology, Wiener-Ditkin sets are precisely sets which are both Wiener sets and Ditkin sets. The importance of such sets in spectral synthesis and their connection to the C-set-S-set problem (see Rudin [3]) are mentioned...

On duals of Lie groups made discrete.

Alain Valette, Mohammed E.B. Bekka (1993)

Journal für die reine und angewandte Mathematik

On Eigenspaces of the Hecke Algebra with Respect to a Good Maximal Compact Subgroup of ap-Adic Reductive Group.

Shin-ichi Kato (1981)

Mathematische Annalen

On equivalent conditions to quasi-perfectness of abelian *-semigroups.

Nobuhisa Sakakibara (2004)

Collectanea Mathematica

Let S be an abelian *-semigroup. In this paper we prove some equivalent conditions for that every positive function is a moment function on S + S + S with a unique representation measure on the set of characters of S.

On Exact Toral Endomorphisms.

Karol Krzyzewski (1993)

Monatshefte für Mathematik

On Existence of Finite Universal Korovkin Sets in the Centre of Group Algebras.

M.R., Tewari, U.B. Agrawal (1997)

Monatshefte für Mathematik

On extending continuous functions on dense subsemigroups.

H.D. Junghenn, H. Sedaghat (1991)

Semigroup forum

On extension of scalar valued positive definite functions on ordered groups.

Bruzual, Ramón, Domínguez, Marisela (2007)

Divulgaciones Matemáticas

On Fourier Stieltjes Transforms of Discrete measures.

Ron C. Blei (1974)

Mathematica Scandinavica

On Fourier-Stieltjes transforms integer-valued on a given subset.

Erik Svensson (1979)

Mathematica Scandinavica

On fractional differentiation and integration on spaces of homogeneous type.

A. Eduardo Gatto, Carlos Segovia, Stephen Vági (1996)

Revista Matemática Iberoamericana

In this paper we define derivatives of fractional order on spaces of homogeneous type by generalizing a classical formula for the fractional powers of the Laplacean [S1], [S2], [SZ] and introducing suitable quasidistances related to an approximation of the identity. We define integration of fractional order as in [GV] but using quasidistances related to the approximation of the identity mentioned before.We show that these operators act on Lipschitz spaces as in the classical cases. We prove that...

Currently displaying 1261 – 1280 of 2299

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Displaying 1261 – 1280 of 2299

On Ditkin sets

On duals of Lie groups made discrete.

On Eigenspaces of the Hecke Algebra with Respect to a Good Maximal Compact Subgroup of ap-Adic Reductive Group.

On equivalent conditions to quasi-perfectness of abelian *-semigroups.

On Exact Toral Endomorphisms.

On Existence of Finite Universal Korovkin Sets in the Centre of Group Algebras.

On extending continuous functions on dense subsemigroups.

On extension of scalar valued positive definite functions on ordered groups.

On Fourier Stieltjes Transforms of Discrete measures.

On Fourier-Stieltjes transforms integer-valued on a given subset.

On fractional differentiation and integration on spaces of homogeneous type.

On functional equations associated with characters of unitary representations of groups.

On functional polynomials spanned by characters of unitary representations. (Summary).

On functions with scattered spectra on lea groups

On generalized Beurling’s theorem and symmetry of $L_{1}$ -group algebras

On generalized invariant means and separation theorems.

On group algebras of nilpotent Lie groups

On group topologies and idempotents in weak almost periodic compactifications.

On Haar measure of $S L (N, ℝ)$ .

On Haar Measure on Sl(n,r)

Currently displaying 1261 – 1280 of 2299