self-adjoint subgroup
11Exceptional object — Many branches of mathematics study objects of a given type and prove a classification theorem. A common theme is that the classification results in a number of series of objects as well as a finite number of exceptions that don t fit into any… …
12Atkin-Lehner theory — In mathematics, the Atkin Lehner theory is an algebraic part of the theory of modular forms, in which the concept of newform is defined. A newform is a cusp form new at a given level N , where the levels refer to the nested subgroups: Gamma;( N… …
13Atkin–Lehner theory — In mathematics, Atkin–Lehner theory is part of the theory of modular forms, in which the concept of newform is defined in such a way that the theory of Hecke operators can be extended to higher level. A newform is a cusp form new at a given level …
14Georgi-Glashow model — In particle physics, the Georgi Glashow model is a particular grand unification theory (GUT) proposed by Howard Georgi and Sheldon Glashow in 1974. In this model the standard model gauge groups SU(3)SU(2)U(1) are combined into a single simple… …
15Georgi–Glashow model — In particle physics, the Georgi–Glashow model is a particular grand unification theory (GUT) proposed by Howard Georgi and Sheldon Glashow in 1974. In this model the standard model gauge groups SU(3)×SU(2)×U(1) are combined into a single simple… …
16Topos — For topoi in literary theory, see Literary topos. For topoi in rhetorical invention, see Inventio. In mathematics, a topos (plural topoi or toposes ) is a type of category that behaves like the category of sheaves of sets on a topological space.… …
17Closure operator — In mathematics, a closure operator on a set S is a function cl: P(S) → P(S) from the power set of S to itself which satisfies the following conditions for all sets X,Y ⊆ S. X ⊆ cl(X) (cl is extensive) X ⊆ Y implies cl(X) ⊆ cl(Y)   (cl… …
18Representation theory of the Lorentz group — The Lorentz group of theoretical physics has a variety of representations, corresponding to particles with integer and half integer spins in quantum field theory. These representations are normally constructed out of spinors.The group may also be …
19List of mathematics articles (H) — NOTOC H H cobordism H derivative H index H infinity methods in control theory H relation H space H theorem H tree Haag s theorem Haagerup property Haaland equation Haar measure Haar wavelet Haboush s theorem Hackenbush Hadamard code Hadamard… …
20Isospin — In physics, and specifically, particle physics, isospin ( isotopic spin , isobaric spin ) is a quantum number related to the strong interaction. This term was derived from isotopic spin , but the term isotopic spin is confusing as two isotopes of …
