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On non-primary Fréchet Schwartz spaces

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C. Díaz J.

Studia Mathematica

1997

tom 126

nr 3

291-307

Let E be a Fréchet Schwartz space with a continuous norm and with a finite-dimensional decomposition, and let F be any infinite-dimensional subspace of E. It is proved that E can be written as G ⨁ H where G and H do not contain any subspace isomorphic to F. In particular, E is not primary. If the subspace F is not normable then the statement holds for other quasinormable Fréchet spaces, e.g., if E is a quasinormable and locally normable Köthe sequence space, or if E is a space of holomorphic functions of bounded type $ℋ_b(U)$, where U is a Banach space or a bounded absolutely convex open set in a Banach space.

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1 Studia Mathematica

1 C. Díaz J.

1 1997

Wyniki wyszukiwania

On non-primary Fréchet Schwartz spaces