Abstract
A short proof is given of the theorem by Wik, who, in 1965, showed that the nowhere-dense strong Ditkin subsets of T, the circle group, are finite.
Citation
Haskell P. Rosenthal. "On the existence of approximate identities in ideals of group algebras." Ark. Mat. 7 (2) 185 - 191, 21 november 1967. https://doi.org/10.1007/BF02591035
Information
Published: 21 november 1967
First available in Project Euclid: 31 January 2017
zbMATH: 0172.18303
MathSciNet: MR239362
Digital Object Identifier: 10.1007/BF02591035
Rights: 1967 © Almqvist & Wiksell
