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The group of isometries on Hardy spaces of the n-ball and the polydisc

Published online by Cambridge University Press:  18 May 2009

Earl Berkson
Affiliation:
Department of Mathematics, University of Illinois, Urbana, Illinois 61801
Horacio Porta
Affiliation:
Department of Mathematics, University of Illinois, Urbana, Illinois 61801
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Let C be the complex plane, and U the disc |z| < 1 in C. Cn denotes complex n-dimensional Euclidean space, <, > the inner product, and | · | the Euclidean norm in Cn. Bn will be the open unit ball {z ∈ Cn: |z| < 1}, and Un will be the unit polydisc in Cn. For 1 ≤p<∞, p≠2, Gp(Bn) (resp., Gp (Un)) will denote the group of all isometries of Hp (Bn) (resp., Hp (Un)) onto itself, where Hp (Bn) and Hp (Un) are the usual Hardy spaces.

Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 1980

References

REFERENCES

1.Berkson, E. and Porta, H., The group of isometries of Hp, Ann. Mat. Pura Appl., (IV), CXIX, (1979), 231238.Google Scholar
2.Berkson, E. and Porta, H., The p-norms of peak functions, Proceedings of (Summer, 1978) Special Session on Operator Theory and Functional Analysis, Research Notes in Math., No. 38 (Pitman, 1979), 115121.Google Scholar
3.Koranyi, A. and Vagi, S., Isometries of Hp spaces of bounded symmetric domains, Canad. J. Math. 28 (1976), 334340.Google Scholar
4.Schwartz, H., Composition operators in Hp, Thesis, (University of Toledo, 1969).Google Scholar
5.Zygmund, A., Trigonometric Series (2nd edition), Vol. 2, (Cambridge University Press, 1959).Google Scholar