Contractive projections in Paley-Wiener spaces
نویسندگان
چکیده
Let S 1 S_1 and 2"> 2 encoding="application/x-tex">S_2 be disjoint finite unions of parallelepipeds. We describe necessary sufficient conditions on the sets 1 comma upper , encoding="application/x-tex">S_1,S_2 exponents alttext="p"> p encoding="application/x-tex">p such that canonical projection P"> P encoding="application/x-tex">P from P W Subscript union 2 Superscript p"> W ∪ encoding="application/x-tex">PW_{S_1\cup S_2}^p to encoding="application/x-tex">PW_{S_1}^p is a contraction.
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 2023
ISSN: ['2330-1511']
DOI: https://doi.org/10.1090/proc/16336