1979
DOI: 10.1007/bf01351484
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Charakterisierung der lokalbeschr�nkten Ringtopologien auf globalen K�rpern

Abstract: O. EinleitungDas Hauptergebnis dieser Arbeit ist der Satz (3.3) (s. Abschn. 3), dab die einzigen lokalbeschr~inkten, nicht diskreten Ringtopologien auf einem globalen K/Srper K die Topologien O(S), S~So, sind, wenn S O ein volles Repr~isentantensystem yon Bewertungen auf K ist. Zur Erl~iuterung der benutzten Begriffe und Bezeichnungen: Eine Teilmenge M eines topologischen Ringes R heil3t linksbeschriJnkt (rechtsbeschriinkt, beschri~nkt), wenn es zu jeder Nullumgebung U in R eine Nullumgebung V in R gibt mit M.… Show more

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Cited by 6 publications
(6 citation statements)
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“…Let H be a T-bounded neighborhood of zero such that H is a proper almost order of K. Let f be the unique Hausdorff, nondiscrete, locally bounded topology on K for which H is a bounded neighborhood of zero. (We note that f \ R 2 T.) By Lemma 2, O(Pco) Π Z is Γ-bounded and hence by [11,Theorem 3.3;13,Theorem 4.4] Therefore, P U S' is a proper subset of P' as O(S') is an almost order of K and so by replacing S' with P U S', we may assume that S' is a nonempty, proper subset of P' and P Q S'. Consequently, the set S defined by, S = S' Π Pco, is a proper subset of Poo.…”
Section: Lemma 2 If T Is a Nondiscrete Locally Bounded Topology On mentioning
confidence: 92%
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“…Let H be a T-bounded neighborhood of zero such that H is a proper almost order of K. Let f be the unique Hausdorff, nondiscrete, locally bounded topology on K for which H is a bounded neighborhood of zero. (We note that f \ R 2 T.) By Lemma 2, O(Pco) Π Z is Γ-bounded and hence by [11,Theorem 3.3;13,Theorem 4.4] Therefore, P U S' is a proper subset of P' as O(S') is an almost order of K and so by replacing S' with P U S', we may assume that S' is a nonempty, proper subset of P' and P Q S'. Consequently, the set S defined by, S = S' Π Pco, is a proper subset of Poo.…”
Section: Lemma 2 If T Is a Nondiscrete Locally Bounded Topology On mentioning
confidence: 92%
“…Therefore, if T is a locally bounded topology on the ring of integers of an algebraic number field, then O(Poo) Π Z is bounded for T. We note further that if K is an algebraic function field, then O(Poo) Π Z is the field F of constants. Weber proved that if f is any Hausdorff, nondiscrete, locally bounded topology on a global field K for which O(Pco) Π Z is bounded, then there exists a nonempty, proper subset S of P' such that f is the topology defined by the almost order O(S) [11,Theorem 3.3 and 13,Theorem 4.4]. (S must be a proper subset of P'.…”
Section: Lemma 2 If T Is a Nondiscrete Locally Bounded Topology On mentioning
confidence: 99%
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“…To reveal this mystery, attempts have been made to elaborate on the concept of "prime" in a field [6,7,5,13]. In the present paper, we give a new definition, partly anticipated by Krull [7], which might also shed some more light upon the distinction between finite and infinite primes of an algebraic number field.…”
mentioning
confidence: 91%
“…1 follows from Theorems 1.8 and 3.3 of [7], We may therefore assume that I® | is nonzero and countable. Thus |F|= N0 and so there exist at most 2N° locally bounded ring topologies on F. Moreover, there exists a subfield EQ of F and a transcendental element x over EQ such that F is an algebraic extension of E0(x).…”
mentioning
confidence: 99%