PARABOLIC MARTINGALES AND NON-SYMMETRIC FOURIER
MULTIPLIERS
Krzysztof Bogdan
Łukasz Wojciechowski
Abstract: We give a class of Fourier multipliers with non-symmetric symbols and explicit
norm bounds on spaces by using the stochastic calculus of Lévy processes and
Burkholder–Wang estimates for differentially subordinate martingales.
2000 AMS Mathematics Subject Classification: Primary: 42B15; Secondary: 60G15,
60G46.
Keywords and phrases: Non-symmetric Fourier multiplier, martingale transform.