We characterize those anisotropic Sobolev spaces on tori in the and uniform norms for which the idempotent multipliers have a description in terms of the coset ring of the dual group. These results are deduced from more general theorems concerning invariant projections on vector-valued function spaces on tori. This paper is a continuation of the author’s earlier paper [W].
@article{bwmeta1.element.bwnjournal-article-smv104i2p181bwm, author = {M. Wojciechowski}, title = {Characterizing translation invariant projections on Sobolev spaces on tori by the coset ring and Paley projections}, journal = {Studia Mathematica}, volume = {104}, year = {1993}, pages = {181-193}, zbl = {0810.46031}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv104i2p181bwm} }
Wojciechowski, M. Characterizing translation invariant projections on Sobolev spaces on tori by the coset ring and Paley projections. Studia Mathematica, Tome 104 (1993) pp. 181-193. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv104i2p181bwm/
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