F-products and nonstandard hulls for semigroups
نویسندگان
چکیده
Derndinger [Der80] and Krupa [Kru90] defined the F–product of a (strongly continuous one–parameter) semigroup (of linear operators) and presented some applications (e.g. to spectral theory of positive operators, cf. [EN00]). Wolff (in [Wol84] and [Wol00]) investigated some kind of nonstandard analogon and applied it to spectral theory of group representations. The question arises in which way these constructions are related.
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ورودعنوان ژورنال:
- Math. Log. Q.
دوره 50 شماره
صفحات -
تاریخ انتشار 2004