On the existence of approximate identities in ideals of group algebras
- 1 November 1967
- journal article
- Published by International Press of Boston in Arkiv för Matematik
- Vol. 7 (2) , 185-191
- https://doi.org/10.1007/bf02591035
Abstract
A short proof is given of the theorem by Wik, who, in 1965, showed that the nowhere-dense strong Ditkin subsets ofT, the circle group, are finite.Keywords
This publication has 4 references indexed in Scilit:
- Projections onto translation-invariant subspaces of 𝐿^{𝑝}(𝐺)Memoirs of the American Mathematical Society, 1966
- A strong form of spectral synthesisArkiv för Matematik, 1965
- A simple proof of the theorem of P. J. CohenBulletin of the American Mathematical Society, 1964
- On a Conjecture of Littlewood and Idempotent MeasuresAmerican Journal of Mathematics, 1960