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On Validated Computing in Algebraic Number Fields [PDF]

open access: yesJournal of Symbolic Computation, 1997
The author considers the use of decimal approximations (rather than integer arithmetic) in number field computations required (say) for finding units, e.g., divisibility of two numbers in an order and finding numbers with given norm. The LLL-algorithm is useful in ensuring scaled matrices for the basis (and conjugates).
MICHAEL E. POHST, POHST, MICHAEL E.
openaire   +3 more sources

Isomorphisms of algebraic number fields [PDF]

open access: yesJournal de théorie des nombres de Bordeaux, 2012
Let ℚ ( α ) and ℚ (
Mark van Hoeij, Vivek Pal
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On the Units of Algebraic Number Fields

open access: yesJournal of Number Theory, 1994
Let \(K\) be an algebraic number field of degree \(n\) over the rational number field and \(k\) be a proper subfield of \(K\) with \([K: k]=m\). Further, let \(R_ 1\), \(r_ 1\) denote the number of embeddings of \(K\), \(k\) into the real numbers and \(2R_ 2\), \(2r_ 2\) denote the numbers of embeddings of \(K\), \(k\) into the complex numbers.
Yamaguchi, I., Takeuchi, H.
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The Genus Field and Genus Number in Algebraic Number Fields [PDF]

open access: yesNagoya Mathematical Journal, 1967
Let k be an algebraic number field and K be its normal extension of finite degree. Then the genus field K* of K over k is defined as the maximal unramified extension of K which is obtained from K by composing an abelian extension over k2). We call the degree (K*: K) the genus number of K over k.
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On the Genus Field in Algebraic Number Fields

open access: yesTokyo Journal of Mathematics, 1983
Sei \(K/k\) eine endliche galoissche Erweiterung algebraischer Zahlkörper, \(\mathfrak M\) ein Modul von \(K\) (der unendliche Primstellen enthalten kann), \(K(\mathfrak M)\) der Strahlklassenkörper von \(K \bmod {\mathfrak M}\), \(E/k\) die maximale abelsche Erweiterung in \(K(\mathfrak M)\) und \(K^*(\mathfrak M) = E\cdot K\); \(K^*(\mathfrak M ...
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Computing in the Field of Complex Algebraic Numbers

open access: yesJournal of Symbolic Computation, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

The geometry of numbers over algebraic number fields [PDF]

open access: yesTransactions of the American Mathematical Society, 1958
1. The Geometry of Numbers was founded by Minkowski in order to attack certain arithmetical problems, and is normally concerned with lattices over the rational integers. Minkowski himself, however, also treated a special problem over complex quadratic number fields [5], and a number of writers have since followed him.
Rogers, K., Swinnerton-Dyer, H. P. F.
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On the abc$abc$ conjecture in algebraic number fields

open access: yesMathematika, 2023
AbstractIn this paper, we prove a weak form of the conjecture generalised to algebraic number fields. Given integers satisfying , Stewart and Yu were able to give an exponential bound in terms of the radical over the integers (Stewart and Yu [Math. Ann. 291 (1991), 225–230], Stewart and Yu [Duke Math. J. 108 (2001), no. 1, 169–181]), whereas Győry was
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Algebraic leaves of algebraic foliations over number fields [PDF]

open access: yesPublications Mathématiques de l'IHÉS, 2001
We prove an algebraicity criterion for leaves of algebraic foliations defined over number fields. Namely, consider a number field K embedded in C , a smooth ...
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Normal Algebraic Number Fields [PDF]

open access: yesProceedings of the National Academy of Sciences, 1940
MacLane, Saunders, Schilling, O. F. G.
openaire   +4 more sources

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