期刊
JOURNAL OF GEOMETRIC ANALYSIS
卷 16, 期 3, 页码 431-453出版社
SPRINGER
DOI: 10.1007/BF02922061
关键词
bilinear pseudodifferential operators; composition; asymptotic expansion; elementary symbols; Littlewood-Paley theory
类别
Bilinear operators are investigated in the context of Sobolev spaces and various techniques useful in the study of their boundedness properties are developed. In particular, several classes of symbols for bilinear operators beyond the so-called Coifman-Meyer class are considered. Some of the Sobolev space estimates obtained apply to both the bilinear Hilbert transform and its singular multipliers generalizations as well as to operators with variable dependent symbols. A symbolic calculus for the transposes of bilinear pseudodifferential operators and for the composition of linear and bilinear pseudodiferential operators is presented too.
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