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Modular group information


In mathematics, the modular group is the projective special linear group of 2 × 2 matrices with integer coefficients and determinant 1. The matrices A and A are identified. The modular group acts on the upper-half of the complex plane by fractional linear transformations, and the name "modular group" comes from the relation to moduli spaces and not from modular arithmetic.

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Modular group

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In mathematics, the modular group is the projective special linear group PSL ⁡ ( 2 , Z ) {\textstyle \operatorname {PSL} (2,\mathbb {Z} )} of 2 × 2 matrices...

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Modular form

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functional equation with respect to the group action of the modular group, and a growth condition. The theory of modular forms therefore belongs to complex...

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Mock modular form

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mathematics, a mock modular form is the holomorphic part of a harmonic weak Maass form, and a mock theta function is essentially a mock modular form of weight...

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Modular curve

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subgroup Γ of the modular group of integral 2×2 matrices SL(2, Z). The term modular curve can also be used to refer to the compactified modular curves X(Γ)...

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Picard modular group

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In mathematics, a Picard modular group, studied by Picard (1881), is a group of the form SU(J,L), where L is a 3-dimensional lattice over the ring of...

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Braid group

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{R} )} . Furthermore, the modular group has trivial center, and thus the modular group is isomorphic to the quotient group of B 3 {\displaystyle B_{3}}...

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Mapping class group of a surface

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topology, the mapping class group of a surface, sometimes called the modular group or Teichmüller modular group, is the group of homeomorphisms of the surface...

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Volkswagen Group MQB platform

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The Volkswagen Group MQB platform is the company's strategy for shared modular design construction of its transverse, front-engine, front-wheel-drive...

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Hilbert modular variety

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of two copies of the upper half-plane by a Hilbert modular group. More generally, a Hilbert modular variety is an algebraic variety obtained by taking...

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General linear group

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study of polynomials. The modular group may be realised as a quotient of the special linear group SL(2, Z). If n ≥ 2, then the group GL(n, F) is not abelian...

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Modular arithmetic

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In mathematics, modular arithmetic is a system of arithmetic for integers, where numbers "wrap around" when reaching a certain value, called the modulus...

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Congruence subgroup

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setting in which congruence subgroups can be studied is that of the modular group S L 2 ( Z ) {\displaystyle \mathrm {SL} _{2}(\mathbb {Z} )} . If n ⩾...

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Projective linear group

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group only being the orientation-preserving transformations. PGL and PSL can also be defined over a ring, with an important example being the modular...

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Pythagorean triple

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This set forms a group, since the inverse of a matrix in Γ is again in Γ, as is the product of two matrices in Γ. The modular group acts on the collection...

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Modular lambda function

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of the congruence group Γ(2), and generates the function field of the corresponding quotient, i.e., it is a Hauptmodul for the modular curve X(2). Over...

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Eisenstein series

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are particular modular forms with infinite series expansions that may be written down directly. Originally defined for the modular group, Eisenstein series...

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Volkswagen Group MEB platform

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The Volkswagen Group MEB platform (German: Modularer E-Antriebs Baukasten, 'modular electric-drive toolkit') is a modular car platform for electric cars...

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Hilbert modular form

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In mathematics, a Hilbert modular form is a generalization of modular forms to functions of two or more variables. It is a (complex) analytic function...

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Volkswagen Group MLB platform

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The Volkswagen Group MLB platform is the company's platform strategy, announced in 2012, for shared modular construction of its longitudinal, front-engined...

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Selberg zeta function

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\backslash \mathbb {H} ^{2}} , where Γ {\displaystyle \Gamma } is the modular group, the Selberg zeta-function is of special interest. For this special...

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Modular invariance

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name comes from the classical name modular group of this group, as in modular form theory. In string theory, modular invariance is an additional requirement...

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Automorphic form

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topological group. Automorphic forms are a generalization of the idea of periodic functions in Euclidean space to general topological groups. Modular forms...

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Discrete group

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plane to the whole space. The modular group PSL(2,Z) is thought of as a discrete subgroup of PSL(2,R). The modular group is a lattice in PSL(2,R), but...

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Quasidihedral group

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to this group as the "modular group of order 16", as its lattice of subgroups is modular. In this article this group will be called the modular maximal-cyclic...

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Small modular reactor

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Small modular reactors (SMRs) are a class of small nuclear fission reactors, designed to be built in a factory, shipped to operational sites for installation...

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Special unitary group

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{\displaystyle \mathbb {C} } . An important example of this type of group is the Picard modular group SU ⁡ ( 2 , 1 ; Z [ i ] ) {\displaystyle \operatorname {SU}...

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