Geodesic
Isometries of Bergman Spaces over Bounded Runge Domains
Canadian journal of mathematics, Tome 33 (1981) no. 5, pp. 1157-1164

Voir la notice de l'article provenant de la source Cambridge University Press

1.1. The isometries of the Hardy spaces Hp (0 < p < ∞, p ≠ 2) of the unit disc were determined by Forelli in [2]. Generalizations to several variables: For the polydisc the isometries of Hp onto itself were characterized by Schneider [9]. For the unit ball the case p > 2 was then done by Forelli [3]; Rudin [8] removed the restriction p > 2 by proving a theorem on equimeasurability. Finally, Koranyi and Vagi [6] noted that the methods developed by Forelli, Rudin and Schneider applied to bounded symmetric domains.In this note it will be shown that their methods also apply to the Bergman spaces over bounded Runge domains. The isometries which are onto are completely characterized; the special cases of the ball and polydisc are particularly nice and are given separately. 
Kolaski, Clinton J. Isometries of Bergman Spaces over Bounded Runge Domains. Canadian journal of mathematics, Tome 33 (1981) no. 5, pp. 1157-1164. doi: 10.4153/CJM-1981-087-1
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