• In algebraic number theory, the conductor of a finite abelian extension of local or global fields provides a quantitative measure of the ramification...
    8 KB (1,227 words) - 08:09, 9 January 2025
  • disorder Conductor (ring theory) Conductor of an abelian variety Conductor of a Dirichlet character Conductor (class field theory) Artin conductor, of a...
    2 KB (223 words) - 04:10, 27 March 2025
  • equivalence classes of binary quadratic forms of a given discriminant. 4.  The class number problem. conductor Conductor (class field theory) coprime Two...
    14 KB (1,774 words) - 14:38, 26 November 2024
  • In algebraic number theory, a quadratic field is an algebraic number field of degree two over Q {\displaystyle \mathbf {Q} } , the rational numbers. Every...
    12 KB (1,306 words) - 09:53, 29 September 2024
  • mathematics, the Artin conductor is a number or ideal associated to a character of a Galois group of a local or global field, introduced by Emil Artin (1930...
    7 KB (935 words) - 22:40, 31 October 2024
  • In number theory, the class number formula relates many important invariants of an algebraic number field to a special value of its Dedekind zeta function...
    9 KB (1,302 words) - 16:23, 17 September 2024
  • variety over a local field and proves it for a curve. The deepest result about the Bloch conductor is its equality with the Artin conductor, defined in terms...
    5 KB (766 words) - 17:05, 1 May 2025
  • Artin reciprocity (category Class field theory)
    1927; 1930), is a general theorem in number theory that forms a central part of global class field theory. The term "reciprocity law" refers to a long...
    16 KB (2,326 words) - 06:37, 14 April 2025
  • Kronecker–Weber theorem (category Class field theory)
    example the quadratic fields have as conductor the absolute value of their discriminant, a fact generalised in class field theory. The theorem was first...
    8 KB (926 words) - 21:06, 20 April 2025
  • Thumbnail for Superconductivity
    electrical resistance vanishes and magnetic fields are expelled from the material. Unlike an ordinary metallic conductor, whose resistance decreases gradually...
    63 KB (7,531 words) - 02:58, 28 April 2025
  • Dirichlet character of conductor 1. The number of Hilbert characters is the order of the class group of the field. Class field theory identifies the Hilbert...
    14 KB (1,976 words) - 20:53, 17 February 2025
  • Thumbnail for Relativistic electromagnetism
    potential Moving magnet and conductor problem Wheeler–Feynman absorber theory Paradox of a charge in a gravitational field Kargon, Robert; Achinstein,...
    11 KB (1,238 words) - 18:46, 28 October 2024
  • Thumbnail for Gauge fixing
    Gauge fixing (category Quantum field theory)
    definition, a gauge theory represents each physically distinct configuration of the system as an equivalence class of detailed local field configurations....
    28 KB (4,271 words) - 00:13, 24 September 2024
  • Thumbnail for Electromagnetic induction
    production of an electromotive force (emf) across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery...
    26 KB (2,918 words) - 06:55, 9 February 2025
  • Thumbnail for Meissner effect
    the exterior field increases. The experiment demonstrated for the first time that superconductors were more than just perfect conductors and provided...
    14 KB (1,704 words) - 11:23, 21 April 2025
  • specifically the area of algebraic number theory, a cubic field is an algebraic number field of degree three. If K is a field extension of the rational numbers...
    15 KB (1,970 words) - 07:22, 6 January 2023
  • Thumbnail for Magnetic field
    field combined with an electric field can distinguish between these, see Hall effect below. The first term in the Lorentz equation is from the theory...
    105 KB (12,990 words) - 03:37, 26 April 2025
  • Thumbnail for Discriminant of an algebraic number field
    Jean-Pierre (1967), "Local class field theory", in Cassels, J. W. S.; Fröhlich, Albrecht (eds.), Algebraic Number Theory, Proceedings of an instructional...
    24 KB (3,097 words) - 02:08, 9 April 2025
  • Basic Number Theory is an influential book by André Weil, an exposition of algebraic number theory and class field theory with particular emphasis on valuation-theoretic...
    19 KB (2,409 words) - 14:39, 7 November 2024
  • Thumbnail for Helmut Hasse
    algebraic number theory, known for fundamental contributions to class field theory, the application of p-adic numbers to local class field theory and diophantine...
    11 KB (942 words) - 10:40, 25 February 2025
  • Thumbnail for Ground (electricity)
    ground itself can be used as one conductor of the circuit, saving the cost of installing a separate return conductor (see single-wire earth return and...
    43 KB (5,600 words) - 18:07, 10 March 2025
  • Thumbnail for Zero-point energy
    Zero-point energy (category Quantum field theory)
    According to quantum field theory, the universe can be thought of not as isolated particles but continuous fluctuating fields: matter fields, whose quanta are...
    208 KB (26,811 words) - 21:13, 16 April 2025
  • Electrical length (category Telecommunication theory)
    constant along the conductor, so it acts as a simple connector which transfers alternating current with negligible phase shift. In circuit theory the connecting...
    45 KB (5,383 words) - 02:13, 19 April 2025
  • Thumbnail for Insulator (electricity)
    becomes a conductor, causing a large increase in current, an electric arc through the substance. Electrical breakdown occurs when the electric field in the...
    33 KB (4,078 words) - 18:48, 16 April 2025
  • Thumbnail for Gerbrand Ceder
    high ionic conductivity in the relatively safer and more stable class of oxide conductors. The authors showed that oxides (which typically do not crystallize...
    26 KB (2,475 words) - 19:59, 27 March 2025
  • Splitting of prime ideals in Galois extensions (category Algebraic number theory)
    map, is a crucial ingredient of class field theory, which studies the finite abelian extensions of a given number field K. In the geometric analogue, for...
    16 KB (2,528 words) - 00:36, 7 April 2025
  • Kummer–Vandiver conjecture (category Unsolved problems in number theory)
    Bibcode:2010arXiv1011.6283M Schoof, René (2003), "Class numbers of real cyclotomic fields of prime conductor", Mathematics of Computation, 72 (242): 913–937...
    9 KB (981 words) - 00:12, 28 February 2025
  • Stickelberger's theorem (category Theorems in algebraic number theory)
    of algebraic number theory, which gives some information about the Galois module structure of class groups of cyclotomic fields. A special case was first...
    8 KB (978 words) - 11:57, 8 December 2023
  • the magnet is moving, the conductor is moving, or both. In a 1920 review on the Fundamental Ideas and Methods of the Theory of Relativity (unpublished)...
    104 KB (13,885 words) - 14:48, 3 March 2025
  • Thumbnail for Electromagnetic radiation
    quanta of the electromagnetic field, responsible for all electromagnetic interactions. Quantum electrodynamics is the theory of how EMR interacts with matter...
    85 KB (10,021 words) - 02:50, 18 April 2025