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On vector-valued random Fourier series
Authors:Michel Talagrand
Institution:1. Equipe d'Analyse-Tour 46, University of Paris VI, 4 Place Jussieu, 75230, Paris Cedex 05
2. Department of Mathematics, The Ohio State University, 43210, Columbus, Ohio
Abstract:Consider a (complex) Banach spaceX, such thatX nsup CO, and vectors(X i ) iisinZopf ofX. Consider an independent standard normal sequence(g i ) iisinZopf . Then if anX-valued random Fourier series sum|k|les n e ikt g k x k satisfies

$$\mathop {\sup }\limits_n E\mathop {\sup }\limits_{\left| t \right| \leqslant 1} \left\| {\sum\limits_{\left| k \right| \leqslant n} {e^{ikt} g_k x_k } } \right\|< \infty $$
Keywords:Random Fourier series  complex Banach space
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