Geodesic
On a general bidimensional extrapolation problem
Colloquium Mathematicum, Tome 64 (1993) no. 1, pp. 3-12.

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

Several generalized moment problems in two dimensions are particular cases of the general problem of giving conditions that ensure that two isometries, with domains and ranges contained in the same Hilbert space, have commutative unitary extensions to a space that contains the given one. Some results concerning this problem are presented and applied to the extension of functions of positive type.
DOI : 10.4064/cm-64-1-3-12

Rodrigo Arocena 1 ; Fernando Montana 1

1 
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Rodrigo Arocena; Fernando Montana. On a general bidimensional extrapolation problem. Colloquium Mathematicum, Tome 64 (1993) no. 1, pp. 3-12. doi : 10.4064/cm-64-1-3-12. http://geodesic.mathdoc.fr/articles/10.4064/cm-64-1-3-12/

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