Concepts

A mathematical idea. It can have more than one definition.

Ideas 3601–3750 of 3771.

Name	Kind	Subject
Finite-dimensional distributions	Concept	Probability theory and stochastic processes
Connected sum	Concept	Manifolds and cell complexes
Primitive permutation group	Concept	Group theory and generalizations
Monotone operator	Concept	Operator theory
Pseudoanalytic function	Concept	Functions of a complex variable
q-Pochhammer symbol	Concept	Combinatorics
Universal cover	Concept	Manifolds and cell complexes
Mal'cev term	Concept	General algebraic systems
Algebraic K-theory of schemes	Concept	K-theory
Monomorphism	Concept	Category theory; homological algebra
Homotopy principle	Concept	Global analysis, analysis on manifolds
Iwasawa theory	Concept	Number theory
Enriques surface	Concept	Algebraic geometry
Evolute	Concept	Differential geometry
Class	Concept	Mathematical logic and foundations
Galerkin method	Concept	Numerical analysis
Injectivity radius	Concept	Differential geometry
Glimm scheme	Concept	Partial differential equations
Castelnuovo–Mumford regularity	Concept	Commutative algebra
Hurewicz fibration	Concept	Algebraic topology
Lagrange polynomial	Concept	Approximations and expansions
Complex torus	Concept	Algebraic geometry
Cheeger constant	Concept	Combinatorics
Exponential map	Concept	Differential geometry
Measure with density	Concept	Measure and integration
Abelian category	Concept	Category theory; homological algebra
Rigid analytic space	Concept	Algebraic geometry
Branched covering	Concept	Manifolds and cell complexes
Fractional ideal	Concept	Commutative algebra
Schottky group	Concept	Functions of a complex variable
Hessenberg matrix	Concept	Linear and multilinear algebra; matrix theory
Boundary layer	Concept	Ordinary differential equations
Homotopy groups of spheres	Concept	Algebraic topology
Stationary set	Concept	Mathematical logic and foundations
HNN extension	Concept	Group theory and generalizations
Quasi-analytic function	Concept	Real functions
Unirational variety	Concept	Algebraic geometry
Limit set	Concept	Dynamical systems and ergodic theory
Excellent ring	Concept	Commutative algebra
Zero morphism	Concept	Category theory; homological algebra
(∞,1)-category	Concept	Category theory; homological algebra
Finite field arithmetic	Concept	Field theory and polynomials
Operator theory	Concept	Operator theory
Quantum invariant of 3-manifolds	Concept	Manifolds and cell complexes
Finitely based algebra	Concept	General algebraic systems
Triangulation	Concept	Manifolds and cell complexes
One-parameter subgroup	Concept	Topological groups, Lie groups
Poincaré–Lindstedt method	Concept	Ordinary differential equations
Eilenberg–Steenrod axioms	Concept	Algebraic topology
Combinatorics on words	Concept	Computer science
WKB approximation	Concept	Ordinary differential equations
Analytic combinatorics	Concept	Combinatorics
Commuting elements	Concept	General algebraic systems
Mirror symmetry	Concept	Algebraic geometry
Developable surface	Concept	Differential geometry
Bredon cohomology	Concept	Algebraic topology
Nonassociative ring	Concept	Nonassociative rings and algebras
Chevalley group	Concept	Group theory and generalizations
Locally finite measure	Concept	Measure and integration
Artinian module	Concept	Associative rings and algebras
Hahn series	Concept	Commutative algebra
Model complete theory	Concept	Mathematical logic and foundations
Integro-differential equation	Concept	Integral equations
Adapted process	Concept	Probability theory and stochastic processes
Gaussian binomial coefficient	Concept	Combinatorics
Nevanlinna characteristic	Concept	Functions of a complex variable
Continuous and residual spectrum	Concept	Operator theory
Topology of uniform convergence	Concept	General topology
Club set	Concept	Mathematical logic and foundations
Toric variety	Concept	Algebraic geometry
Instanton	Concept	Differential geometry
Trace form	Concept	Field theory and polynomials
Rate of convergence	Concept	Sequences, series, summability
Uniform module	Concept	Associative rings and algebras
Group cohomology	Concept	Group theory and generalizations
Projective object	Concept	Category theory; homological algebra
Arakelov theory	Concept	Algebraic geometry
Fractional differential equation	Concept	Ordinary differential equations
J-homomorphism	Concept	Algebraic topology
Measurable function	Concept	Measure and integration
Measure algebra	Concept	Measure and integration
Field of formal Laurent series	Concept	Commutative algebra
Koszul complex	Concept	Commutative algebra
Schubert variety	Concept	Algebraic geometry
Uniserial module	Concept	Associative rings and algebras
Order filter	Concept	Order, lattices, ordered algebraic structures
Cotangent space of a local ring	Concept	Commutative algebra
Difference algebra	Concept	Field theory and polynomials
Subharmonic function	Concept	Potential theory
Trace class operator	Concept	Operator theory
Parabolic subgroup	Concept	Topological groups, Lie groups
Trace operator	Concept	Functional analysis
Positive cone	Concept	Functional analysis
Weierstrass equation	Concept	Algebraic geometry
Algebraic logic	Concept	Mathematical logic and foundations
Band matrix	Concept	Linear and multilinear algebra; matrix theory
Oracle machine	Concept	Mathematical logic and foundations
Duality in category theory	Concept	Category theory; homological algebra
Projective morphism	Concept	Algebraic geometry
Inherently nonfinitely based algebra	Concept	General algebraic systems
Massey product	Concept	Algebraic topology
Interior operator	Concept	Order, lattices, ordered algebraic structures
Finite-rank operator	Concept	Operator theory
Weil divisor	Concept	Algebraic geometry
Prime ring	Concept	Associative rings and algebras
Dehn surgery	Concept	Manifolds and cell complexes
Curvature form	Concept	Differential geometry
Moment map	Concept	Differential geometry
Gowers norm	Concept	Number theory
Theta correspondence	Concept	Number theory
Fundamental groupoid	Concept	Algebraic topology
Category of posets	Concept	Category theory; homological algebra
Cartan matrix of an algebra	Concept	Associative rings and algebras
Fuchsian equation	Concept	Ordinary differential equations
Lawson topology	Concept	Order, lattices, ordered algebraic structures
Concrete category of algebras	Concept	General algebraic systems
Primary decomposition	Concept	Commutative algebra
Semilocal ring	Concept	Associative rings and algebras
Permutation group	Concept	Group theory and generalizations
Barrelled space	Concept	Functional analysis
Fundamental class	Concept	Manifolds and cell complexes
Join	Concept	General topology
Δ-complex	Concept	Algebraic topology
Black–Scholes equation	Concept	Partial differential equations
Normed field	Concept	Field theory and polynomials
Priestley space	Concept	Order, lattices, ordered algebraic structures
Markov chain Monte Carlo	Concept	Numerical analysis
Deligne–Lusztig theory	Concept	Group theory and generalizations
Oscillation theory	Concept	Ordinary differential equations
Relative homotopy group	Concept	Algebraic topology
Join-irreducible element	Concept	Order, lattices, ordered algebraic structures
Scalar curvature	Concept	Differential geometry
Generalized Boolean algebra	Concept	Order, lattices, ordered algebraic structures
Functional differential equation	Concept	Ordinary differential equations
Nest algebra	Concept	Operator theory
Uniform algebra	Concept	Functional analysis
Control system	Concept	Systems theory; control
Conjugate points	Concept	Differential geometry
Enumerative geometry	Concept	Algebraic geometry
Jacobian variety	Concept	Algebraic geometry
Progenerator	Concept	Associative rings and algebras
Hardy–Littlewood circle method	Concept	Number theory
Donaldson theory	Concept	Manifolds and cell complexes
Legendre transformation	Concept	Real functions
Locally compact abelian group	Concept	Topological groups, Lie groups
Scott topology	Concept	Order, lattices, ordered algebraic structures
Semiperfect ring	Concept	Associative rings and algebras
Hodge structure	Concept	Algebraic geometry
Universal class	Concept	Mathematical logic and foundations
Maximal subfield	Concept	Associative rings and algebras