Concepts

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

Ideas 5701–5850 of 7386.

Name	Kind	Subject
Injective hull	Concept	Commutative algebra
Martin boundary	Concept	Potential theory
Integral transforms of tempered distributions	Concept	Functional analysis
Modified nodal analysis	Concept	Information and communication theory, circuits
Topological index	Concept	Global analysis, analysis on manifolds
Standard probability space	Concept	Measure and integration
Palatini variation	Concept	Relativity and gravitational theory
Voronoi diagram	Concept	Convex and discrete geometry
Karoubi–Villamayor K-theory	Concept	K-theory
Electrical resistivity tomography	Concept	Geophysics
Tidal acceleration	Concept	Mechanics of particles and systems
Taylor term	Concept	General algebraic systems
Horvitz–Thompson estimator	Concept	Statistics
Triple point	Concept	Classical thermodynamics, heat transfer
Kelvin wave	Concept	Fluid mechanics
Plancherel measure	Concept	Abstract harmonic analysis
Deceleration parameter	Concept	Relativity and gravitational theory
Forced convection	Concept	Fluid mechanics
Goldie ring	Concept	Associative rings and algebras
Endomorphism monoid	Concept	General algebraic systems
Parker instability	Concept	Astronomy and astrophysics
Big Bang nucleosynthesis	Concept	Astronomy and astrophysics
Lambda-CDM model	Concept	Relativity and gravitational theory
Dual cone	Concept	Convex and discrete geometry
Legendre polynomials	Concept	Special functions
Radical of a module	Concept	Associative rings and algebras
Algebra over a monad	Concept	Category theory; homological algebra
Convergence along an ultrafilter	Concept	General topology
Appell series	Concept	Special functions
Vanishing mean oscillation	Concept	Harmonic analysis on Euclidean spaces
Analytic capacity	Concept	Functions of a complex variable
Leray–Schauder method	Concept	Operator theory
Schnirelmann density	Concept	Number theory
Inverse distance weighting	Concept	Numerical analysis
Beta function	Concept	Special functions
Camassa–Holm equation	Concept	Partial differential equations
Overdetermined system	Concept	Linear and multilinear algebra; matrix theory
Moving horizon estimation	Concept	Systems theory; control
Algebraic structure	Concept	General algebraic systems
Bounded mean oscillation	Concept	Functions of a complex variable
ZPP	Concept	Computer science
Ordinary point and singular point	Concept	Ordinary differential equations
Spectral geometry	Concept	Global analysis, analysis on manifolds
Whitehead product	Concept	Algebraic topology
Fully invariant congruence	Concept	General algebraic systems
Lagrangian singularity	Concept	Differential geometry
Bidual and canonical embedding	Concept	Functional analysis
Prime ideal of a lattice	Concept	Order, lattices, ordered algebraic structures
Fermat point	Concept	Geometry
Virial expansion	Concept	Classical thermodynamics, heat transfer
Graphon	Concept	Combinatorics
Tangent space	Concept	Global analysis, analysis on manifolds
Box spline	Concept	Approximations and expansions
Dirac operator on a spin manifold	Concept	Differential geometry
Stokeslet	Concept	Fluid mechanics
Abel transform	Concept	Integral transforms, operational calculus
Laurent polynomial ring	Concept	Associative rings and algebras
Satisfiability	Concept	Mathematical logic and foundations
Prolate spheroidal wave functions	Concept	Special functions
Congruence generated by a relation	Concept	General algebraic systems
Electronic band structure	Concept	Statistical mechanics, structure of matter
Nutation	Concept	Mechanics of particles and systems
Polytope	Concept	Convex and discrete geometry
Deformation of algebras	Concept	Associative rings and algebras
Total curvature	Concept	Differential geometry
Bargmann transform	Concept	Integral transforms, operational calculus
Interval arithmetic	Concept	Numerical analysis
Cartan connection	Concept	Differential geometry
Dynamic programming in continuous time	Concept	Calculus of variations and optimal control; optimization
Method of matched asymptotic expansions	Concept	Ordinary differential equations
Boundary integral method for the Dirichlet problem	Concept	Potential theory
Magnetic monopole	Concept	Optics, electromagnetic theory
Lie group method for PDEs	Concept	Partial differential equations
Heaviside operational calculus	Concept	Integral transforms, operational calculus
Nilradical	Concept	Commutative algebra
Zinbiel algebra	Concept	Nonassociative rings and algebras
Wigner D-matrix	Concept	Special functions
Topological manifold	Concept	Manifolds and cell complexes
Zoeppritz equations	Concept	Mechanics of deformable solids
NP	Concept	Computer science
Dunford–Pettis property	Concept	Functional analysis
Absolutely monotonic function	Concept	Real functions
Teleparallelism	Concept	Relativity and gravitational theory
Horn clause	Concept	Mathematical logic and foundations
Uniformly most powerful test	Concept	Statistics
Hidden-variable theory	Concept	Quantum theory
Kompaneets equation	Concept	Astronomy and astrophysics
Lagrangian duality	Concept	Operations research, mathematical programming
Logical connective	Concept	Mathematical logic and foundations
Best response	Concept	Game theory, economics, finance, and other social and behavioral sciences
Singular values of a compact operator	Concept	Operator theory
Lorentz oscillator model	Concept	Optics, electromagnetic theory
Valuation ring	Concept	Commutative algebra
Multidimensional Laplace transform	Concept	Integral transforms, operational calculus
Shimura variety	Concept	Algebraic geometry
Enthalpy method for phase change	Concept	Classical thermodynamics, heat transfer
Survival function	Concept	Statistics
Polar motion	Concept	Geophysics
Natural boundary condition	Concept	Calculus of variations and optimal control; optimization
Basis of a matroid	Concept	Combinatorics
Perspectivity	Concept	Geometry
L-system	Concept	Computer science
Lebesgue–Stieltjes measure	Concept	Measure and integration
Shapley value	Concept	Game theory, economics, finance, and other social and behavioral sciences
Mahler measure	Concept	Number theory
H-infinity norm of a system	Concept	Systems theory; control
Hypersingular integral equation	Concept	Integral equations
Stellar pulsation	Concept	Astronomy and astrophysics
Cayley–Abels graph	Concept	Topological groups, Lie groups
Exponential functions on semigroups	Concept	Difference and functional equations
Quasi-primal algebra	Concept	General algebraic systems
Modular lattice	Concept	Order, lattices, ordered algebraic structures
Topological semigroup	Concept	Topological groups, Lie groups
Determinacy	Concept	Mathematical logic and foundations
Vasicek model	Concept	Game theory, economics, finance, and other social and behavioral sciences
Optical fiber modes	Concept	Optics, electromagnetic theory
Galaxy two-point correlation function	Concept	Astronomy and astrophysics
Open subgroup	Concept	Topological groups, Lie groups
Knot	Concept	Manifolds and cell complexes
Jordan operator algebra	Concept	Functional analysis
Finite-time thermodynamics	Concept	Classical thermodynamics, heat transfer
Dirac bracket	Concept	Mechanics of particles and systems
Pringsheim convergence	Concept	Sequences, series, summability
Tate's thesis	Concept	Number theory
Wiener–Hopf equation	Concept	Integral equations
Incomplete Cholesky factorization	Concept	Numerical analysis
Cohomological dimension of a field	Concept	Field theory and polynomials
Pincherle derivative	Concept	Operator theory
Kuranishi family	Concept	Several complex variables and analytic spaces
Perron–Wiener–Brelot solution	Concept	Potential theory
Filtered algebra	Concept	Associative rings and algebras
Hall basis	Concept	Nonassociative rings and algebras
Flexible algebra	Concept	Nonassociative rings and algebras
3-manifold	Concept	Manifolds and cell complexes
Quantum teleportation	Concept	Quantum theory
Natural convection	Concept	Fluid mechanics
Brauer character	Concept	Group theory and generalizations
Froude number	Concept	Fluid mechanics
Smooth structure	Concept	Manifolds and cell complexes
Galois connection between subgroups and subfields	Concept	Field theory and polynomials
Randić index	Concept	Combinatorics
Fréchet–Urysohn space	Concept	General topology
Dynamic programming	Concept	Operations research, mathematical programming
Power series in several variables	Concept	Several complex variables and analytic spaces
Integral equation	Concept	Integral equations
Semilocally simply connected space	Concept	Manifolds and cell complexes
Projective conic	Concept	Geometry
Tipping points in the climate system	Concept	Geophysics
Kummer–Artin–Schreier–Witt theory	Concept	Field theory and polynomials
Torus integral	Concept	Several complex variables and analytic spaces