List of group theory topics
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This is a list of group theory topics, by Wikipedia page. to provide an overview of the topic and to allow those interested to use the "Related changes" feature to keep abreast of edits in this area.
See also: List of abstract algebra topics, List of category theory topics, list of Lie group topics.
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History, major contributors
- Joseph-Louis Lagrange
- Niels Abel
- Evariste Galois
- Augustin Louis Cauchy
- Arthur Cayley
- Otto Ludwig Hölder
- Camille Jordan
- Ludwig Sylow
- Ferdinand Georg Frobenius
- Sophus Lie
- Felix Klein
- William Burnside
- Richard Dedekind
- David Hilbert
- Max August Zorn
- John Thompson
- Martin Dunwoody
- John Conway
Famous problems
- Classification of finite simple groups
- Word problem for groups
- Subset sum problem
- Burnside's problem
- Whitehead problem
- Herzog-Schonheim conjecture
Applications
- Computer algebra system
- Exponentiating by squaring
- Knapsack problem
- Shor's algorithm
- Cryptography
- Standard Model
Definitions in common with other mathematical ideas
- Binary operation
- Bilinear operator
- Commutative
- Associativity
- Equivalence relation
- Equivalence class
- Bijection
- Multiplication table
- Lattice
- Up to
- Congruence relation
- Prime number
Mathematical objects which have (or make use of) a group operation
- Number
- Real number
- Integer
- Modular arithmetic
- Matrix
- Tensor
- Quaternion
- Hilbert space
- Pauli matrices
- Gell-Mann matrices
- Banach-Tarski paradox
- Galois group
- Dimensional analysis
- Lie group
- Algebraic group
- Elliptic curve
- Abelian variety
- Group object
- Category of groups
Abstract algebra
- Quasigroup
- Semigroup
- Monoid
- Monoid ring
- Module
- Ring
- Finite field
- Field
- Vector space
- Linear algebra
- Galois theory
Other mathematical disciplines which make great use of groups
- Geometry
- Algebraic geometry
- Algebraic topology
- Topological group
- Fundamental group
- Discrete space
- Homology
- Minkowski's theorem
Basic properties of groups and subgroups
- Elementary group theory
- Identity element
- Reciprocal
- Subgroup
- Coset
- Transversal
- Lagrange's theorem
- Euler's theorem
- Normal subgroup
- Hamiltonian group
- Characteristic subgroup
- Torsion subgroup
- Centralizer and normalizer
- Center of a group
- Commutator
- Derived group
- Conjugate
- Conjugacy class
- Conjugate closure
- Core (group)
- Composition series
- Zassenhaus lemma, Butterfly lemma
- Schreier refinement theorem
- Fitting subgroup, generalized Fitting subgroup
- p-core
Group homomorphisms
- Automorphism
- Automorphism group
- Group homomorphism
- Group isomorphism
- Factor group
- Quotient group
- Homomorphism
- Order automorphism
- Isomorphism theorem
- Fundamental theorem on homomorphisms
- Inner automorphism
- Outer automorphism group
Basic group structures and operations
- Generating set of a group
- Sylow theorem
- Product of groups
- Direct product
- Direct sum
- Direct sum of groups
- Subdirect sum
- Semidirect product
- Group Extension
- Central extension
- Schur multiplier
- Group cohomology
- Wreath product
- Free product
- Free group
- Free abelian group
- Presentation of a group
Basic building block of groups, and classifications
- Examples of groups
- P-group
- Cyclic group
- Abelian group
- Finitely generated abelian group
- Nilpotent group
- Solvable group
- Dihedral group
- Dicyclic group
- Klein four-group
- Group representation
- Pro-finite group
- Locally cyclic group
- List of small groups
- Divisible group
Simple groups and their classification
- Simple group
- Symmetric group
- Alternating group
- General linear group
- Special linear group
- Projective group
- Mathieu group
- Janko group
- Conway group
- Fischer group
- Thompson group (finite)
- Tits group
- Baby Monster group
- Monster group
- Bimonster
- Lie group
- Simple Lie group
- Weyl group
- Algebraic group
- Group of Lie type, Chevalley group
- Feit-Thompson theorem
Understanding groups as permutation and symmetry groups
- Rubik's Cube
- Symmetry
- Symmetry group
- Euclidean group
- Frieze group
- Wallpaper group
- Crystallographic group
- Crystallographic point group, Schoenflies notation
- Space group
- Coxeter group
- Discrete group
- Frobenius group
- Fuchsian group
- Arithmetic group
- Homogeneous space
- Permutation
- Permutation group
- Cayley's Theorem
- Even and odd permutations
- Strong generating set
- Braid group
- Group action
- Burnside's lemma
- Steiner system
- Geometric group theory
Group representations
See also list of harmonic analysis and representation theory topics
- Representation theory
- Affine representation
- Projective representation
- Maschke's theorem
- Schur's lemma
- Character theory
- Monstrous moonshine