Geodesic
Hankel forms and sums of random variables
Henry Helson1
1 Mathematics Department University of California Berkeley, CA 94720-3840, U.S.A.
Studia Mathematica, Tome 176 (2006) no. 1, pp. 85-92

Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences

A well known theorem of Nehari asserts on the circle group that bilinear forms in $H^2$ can be lifted to linear functionals on $H^1$. We show that this result can be extended to Hankel forms in infinitely many variables of a certain type. As a corollary we find a new proof that all the $L^p$ norms on the class of Steinhaus series are equivalent.
DOI : 10.4064/sm176-1-6
Keywords: known theorem nehari asserts circle group bilinear forms lifted linear functionals result extended hankel forms infinitely many variables certain type corollary proof norms class steinhaus series equivalent

Henry Helson 1

1 Mathematics Department University of California Berkeley, CA 94720-3840, U.S.A. 
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Henry Helson. Hankel forms and sums of random variables. Studia Mathematica, Tome 176 (2006) no. 1, pp. 85-92. doi: 10.4064/sm176-1-6

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