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The Zariski topology and essential extensions of semilattices

✍ Scribed by Gerhard Gierz; Albert Stralka

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
941 KB
Volume
68
Category
Article
ISSN
0022-4049

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πŸ“œ SIMILAR VOLUMES

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Let M be a 3 rulifold, A an annulus, and (2 a spanning arc of A, i.e. A --01 is connect&d' and simply connected. A map f : (A, aA)-+ (M, HIYQ is essent,ial if j$ : ?r@)-=+ wi(M)'i's monk and j'(a) is not ho:motopic rei its boundary to an ax in 8Ak W~Z say that f is a D&n map if p /&4 is an embedding

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## Abstract A general construction for the Friedrichs extension of symmetric semi‐bounded block operators with not necessarily bounded entries, acting in the product of Hilbert spaces has been given by Konstantinov and Mennicken via the form There the entry __A__ was assumed to be essentially sel