Investigates multipliers on modulation spaces, revealing characteristics of functions in specific function spaces.
The purpose of this paper is to study the multipliers on modulation spaces M p,q (R d ) for 0 < p, q < .In particular, it is shown in the case 0 < p < 1 that elements of B K (K > d/(2p) and K N), consisting of all functions f C K whose derivatives f L for any multi-index such that || K, are multipliers on M p,q .
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Masaharu Kobayashi (2006) studied this question.
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