• Thumbnail for Ramification (mathematics)
    In geometry, ramification is 'branching out', in the way that the square root function, for complex numbers, can be seen to have two branches differing...
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  • Look up ramification in Wiktionary, the free dictionary. Ramification may refer to: Ramification (mathematics), a geometric term used for 'branching out'...
    765 bytes (148 words) - 00:55, 18 July 2016
  • from earlier resolutions of ramification as problematic for their own algorithms. Non-monotonic logic Ramification (mathematics) Nikos Papadakis "Actions...
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  • information on the ramification phenomena of the extension. In mathematics, the ramification theory of valuations studies the set of extensions of a valuation...
    14 KB (2,553 words) - 23:20, 6 July 2025
  • Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer...
    195 KB (20,033 words) - 13:09, 12 July 2025
  • Thumbnail for Mathematics education
    In contemporary education, mathematics education—known in Europe as the didactics or pedagogy of mathematics—is the practice of teaching, learning, and...
    60 KB (6,339 words) - 05:04, 13 July 2025
  • List of algebraic number theory topics (category Mathematics-related lists)
    Dirichlet's unit theorem Discriminant of an algebraic number field Ramification (mathematics) Root of unity Gaussian period Fermat's Last Theorem Class number...
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  • Mathematical logic is the study of formal logic within mathematics. Major subareas include model theory, proof theory, set theory, and recursion theory...
    69 KB (8,370 words) - 23:14, 13 July 2025
  • The set of exceptional points on W {\displaystyle W} is called the ramification locus (i.e. this is the complement of the largest possible open set W...
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  • when one is a ramified covering of the other. It therefore connects ramification with algebraic topology, in this case. It is a prototype result for many...
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  • Thumbnail for Torus
    Torus (redirect from Torus (mathematics))
    The 2-torus is a twofold branched cover of the 2-sphere, with four ramification points. Every conformal structure on the 2-torus can be represented as...
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  • Theory and Its Ramifications Journal of Logic and Analysis Journal of Mathematical Biology Journal of Mathematical Logic Journal of Mathematical Physics Journal...
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  • proved by Cahit Arf. The theorem deals with the upper numbered higher ramification groups of a finite abelian extension L / K {\displaystyle L/K} . So assume...
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  • {\displaystyle \Omega _{X/Y}} is zero. Finite extensions of local fields Ramification (mathematics) Hartshorne 1977, Ch. IV, § 2. Grothendieck & Dieudonné 1967,...
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  • 41403 Ogg, A. P. (1967), "Elliptic curves and wild ramification", American Journal of Mathematics, 89 (1): 1–21, doi:10.2307/2373092, ISSN 0002-9327,...
    7 KB (1,006 words) - 15:38, 25 May 2025
  • f(z_{0})} is a positive integer called the ramification index of z 0 {\displaystyle z_{0}} . If the ramification index is greater than 1, then z 0 {\displaystyle...
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  • number field K, with respect to the field trace. It then encodes the ramification data for prime ideals of the ring of integers. It was introduced by Richard...
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  • restriction of w to K is v. The set of all such extensions is studied in the ramification theory of valuations. Let L/K be a finite extension and let w be an extension...
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  • Thumbnail for Prime number
    ramification of prime ideals when lifted to an extension field, a basic problem of algebraic number theory, bears some resemblance with ramification in...
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  • by Emmy Noether (perhaps known earlier?). What matters here is tame ramification. In terms of the discriminant D of L, and taking still K = Q, no prime...
    15 KB (1,927 words) - 19:44, 5 August 2024
  • In mathematics, Abhyankar's lemma (named after Shreeram Shankar Abhyankar) allows one to kill tame ramification by taking an extension of a base field...
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  • In algebraic number theory, through completion, the study of ramification of a prime ideal can often be reduced to the case of local fields where a more...
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  • algebraic number field or a global function field). It is used to encode ramification data for abelian extensions of a global field. Let K be a global field...
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  • Thumbnail for Jacques Herbrand
    for mathematics and physics Herbrandization – a validity-preserving normal form of a formula, dual to Skolemization Herbrand's theorem on ramification groups...
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  • Thumbnail for Monodromy
    Monodromy (category Mathematical analysis)
    is closely associated with covering maps and their degeneration into ramification; the aspect giving rise to monodromy phenomena is that certain functions...
    11 KB (1,692 words) - 09:54, 17 May 2025
  • A prototypical example is intuitionistic type theory, which retains ramification (without the explicit levels) so as to discard impredicativity. The 'levels'...
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  • Thumbnail for Frank Calegari
    Frank Calegari (category International Mathematical Olympiad participants)
    ISSN 0020-9910. S2CID 8937648. Calegari, Frank; Emerton, Matthew (2005). "On the ramification of Hecke algebras at Eisenstein primes". Inventiones Mathematicae. 160...
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  • is called inertia degree of Pj over p. The multiplicity ej is called ramification index of Pj over p. If it is bigger than 1 for some j, the field extension...
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  • Thumbnail for Tangle (mathematics)
    In mathematics, a tangle is generally one of two related concepts: In John Conway's definition, an n-tangle is a proper embedding of the disjoint union...
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  • knot theory and surgery theory) in topology, the Hasse–Arf theorem in ramification theory, Arf semigroups and Arf rings. Cahit Arf was born on 11 October...
    11 KB (991 words) - 08:53, 30 June 2025