We prove the uniform L1L1, and HE1L1 boundedness of oscillatory singular integral operators whose kernels are the products of an oscillatory factor with bilinear phase and a Calderon-Zygmund kernel K(x,y) satisfying a Holder condition. This Holder condition appreciably weakens the C1 condition imposed in existing literature.
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CNRS, Dept Math & Applicat, 45 Rue Ulm, F-75005 Paris, France
Ecole Normale Super Paris, 45 Rue Ulm, F-75005 Paris, FranceCNRS, Dept Math & Applicat, 45 Rue Ulm, F-75005 Paris, France
Imbert, Cyril
Jin, Tianling
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Hong Kong Univ Sci & Technol, Dept Math, Kowloon, Clear Water Bay, Hong Kong, Peoples R ChinaCNRS, Dept Math & Applicat, 45 Rue Ulm, F-75005 Paris, France
Jin, Tianling
Silvestre, Luis
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Univ Chicago, Dept Math, 5734 S Univ Ave, Chicago, IL 60637 USACNRS, Dept Math & Applicat, 45 Rue Ulm, F-75005 Paris, France