Some characterizations of ultrabornological spaces
Manuel Valdivia (1974)
Annales de l'institut Fourier
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Let be an infinite-dimensional separable Fréchet space with a topology defined by a family of norms. Let be an infinite-dimensional Banach space. Then is the inductive limit of a family of spaces equal to . The choice of suitable classes of Fréchet spaces allows to give characterizations of ultrabornological spaces using the result above.. Let be a non-empty open set in the euclidean -dimensional space . Then is the inductive limit of a family of spaces equal to . ...