• In ring theory, a branch of mathematics, a radical of a ring is an ideal of "not-good" elements of the ring. The first example of a radical was the nilradical...
    11 KB (1,362 words) - 01:24, 28 March 2024
  • in abstract algebra Radical of a ring, an ideal of "bad" elements of a ring Jacobson radical, consisting of those elements in a ring R that annihilate all...
    4 KB (557 words) - 22:38, 22 August 2024
  • Thumbnail for Jacobson radical
    In mathematics, more specifically ring theory, the Jacobson radical of a ring R is the ideal consisting of those elements in R that annihilate all simple...
    26 KB (2,879 words) - 13:06, 19 October 2024
  • thus the radical of the zero ideal. If the nilradical is the zero ideal, the ring is called a reduced ring. The nilradical of a commutative ring is the...
    7 KB (1,066 words) - 18:37, 12 August 2024
  • In ring theory, a branch of mathematics, the radical of an ideal I {\displaystyle I} of a commutative ring is another ideal defined by the property that...
    12 KB (2,131 words) - 09:53, 19 November 2024
  • more specifically in ring theory, an ideal of a ring is a special subset of its elements. Ideals generalize certain subsets of the integers, such as...
    37 KB (6,347 words) - 13:52, 10 September 2024
  • integers. Ring theory studies the structure of rings; their representations, or, in different language, modules; special classes of rings (group rings, division...
    24 KB (3,093 words) - 04:03, 3 October 2024
  • Thumbnail for Affine variety
    and radical ideals is a bijection. The coordinate ring of an affine algebraic set is reduced (nilpotent-free), as an ideal I in a ring R is radical if...
    29 KB (4,125 words) - 14:28, 7 February 2024
  • Local rings also do not have such idempotents, but for a different reason. The only idempotent contained in the Jacobson radical of a ring is 0. A ring in...
    18 KB (2,175 words) - 16:34, 10 May 2024
  • Informally, a ring is a set equipped with two binary operations satisfying properties analogous to those of addition and multiplication of integers. Ring elements...
    99 KB (13,673 words) - 08:52, 19 October 2024
  • Thumbnail for Radical SR8
    Retrieved 2013-10-14. "Pagani Zonda breaks 'Ring record". Evo. 13 November 2018. Retrieved 2024-05-13. "2007 Radical SR8LM - Images, Specifications and Information"...
    3 KB (161 words) - 13:27, 13 May 2024
  • Nakayama's lemma (category Theorems in ring theory)
    the Jacobson radical of a ring (typically a commutative ring) and its finitely generated modules. Informally, the lemma immediately gives a precise sense...
    22 KB (3,600 words) - 01:25, 19 October 2024
  • Nil ideal (category Ideals (ring theory))
    of all nilpotent elements forms an ideal known as the nil radical of a ring. Because the nil radical contains every nilpotent element, an ideal of a commutative...
    5 KB (686 words) - 01:26, 6 September 2024
  • Jacobson radical is zero. If an Artinian semisimple ring contains a field as a central subring, it is called a semisimple algebra. For a commutative ring, the...
    10 KB (1,249 words) - 15:50, 18 September 2024
  • Quasiregular element (category Ring theory)
    specifically ring theory, the notion of quasiregularity provides a computationally convenient way to work with the Jacobson radical of a ring. In this article...
    12 KB (1,658 words) - 23:04, 28 January 2024
  • Ring theory is the branch of mathematics in which rings are studied: that is, structures supporting both an addition and a multiplication operation. This...
    32 KB (4,250 words) - 12:04, 19 April 2024
  • algebra, a semiprimitive ring or Jacobson semisimple ring or J-semisimple ring is a ring whose Jacobson radical is zero. This is a type of ring more general...
    3 KB (372 words) - 18:27, 14 June 2022
  • Thumbnail for Radical (chemistry)
    radicals highly chemically reactive. Many radicals spontaneously dimerize. Most organic radicals have short lifetimes. A notable example of a radical...
    40 KB (4,613 words) - 06:59, 17 October 2024
  • ideal and with the ring's Jacobson radical. The third of the properties listed above says that the set of non-units in a local ring forms a (proper) ideal...
    15 KB (2,311 words) - 00:43, 21 October 2024
  • unnecessary. A semiprimitive ring or Jacobson semisimple ring or J-semisimple ring is a ring whose Jacobson radical is zero. This is a type of ring more general...
    20 KB (2,804 words) - 01:41, 1 November 2023
  • algebra, a Hilbert ring or a Jacobson ring is a ring such that every prime ideal is an intersection of primitive ideals. For commutative rings primitive...
    6 KB (836 words) - 14:45, 10 November 2024
  • theory of modules, the radical of a module is a component in the theory of structure and classification. It is a generalization of the Jacobson radical for...
    2 KB (323 words) - 12:13, 25 May 2024
  • Thumbnail for Phenyl group
    Phenyl group (redirect from Phenyl radical)
    In organic chemistry, the phenyl group, or phenyl ring, is a cyclic group of atoms with the formula C6H5, and is often represented by the symbol Ph (archaically...
    9 KB (1,047 words) - 11:49, 27 October 2024
  • a radical clock is a chemical compound that assists in the indirect methodology to determine the kinetics of a free-radical reaction. The radical-clock...
    8 KB (1,004 words) - 16:56, 9 November 2023
  • Thumbnail for Radical substitution
    In organic chemistry, a radical-substitution reaction is a substitution reaction involving free radicals as a reactive intermediate. The reaction always...
    3 KB (351 words) - 17:17, 21 September 2024
  • Thumbnail for Karl Ziegler
    Karl Ziegler (category Werner von Siemens Ring laureates)
    involving free-radicals, many-membered rings, and organometallic compounds, as well as the development of Ziegler–Natta catalyst. One of many awards Ziegler...
    23 KB (2,670 words) - 09:18, 13 September 2024
  • x n ] {\displaystyle k[x_{1},x_{2},\ldots ,x_{n}]} is a polynomial ring, the ring of radical polynomials is the subring generated by the polynomial ∑...
    2 KB (220 words) - 09:40, 30 October 2023
  • aryl radical in organic chemistry is a reactive intermediate and an arene compound incorporating one free radical carbon atom as part of the ring structure...
    2 KB (222 words) - 19:37, 27 October 2022
  • seen as a generalisation of rings. Many concepts from ring theory, such as ideals, Jacobson radicals, and factor rings can be generalized in a straightforward...
    12 KB (1,667 words) - 22:11, 28 October 2024
  • precisely of the elements annihilated by the Jacobson radical of R. In the context of Lie algebras, a socle of a symmetric Lie algebra is the eigenspace of its...
    6 KB (774 words) - 20:02, 25 May 2024