Concepts

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

Ideas 7501–7650 of 8057.

Name	Kind	Subject
Receiver function	Concept	Geophysics
Index map	Concept	Functional analysis
Negation consistency	Concept
Local martingale	Concept	Probability theory and stochastic processes
Kovacic's algorithm	Concept	Ordinary differential equations
Nuclear space	Concept	Functional analysis
Probit model	Concept	Statistics
Blocking	Concept	Statistics
Primal algebra	Concept	General algebraic systems
Unary algebra	Concept	General algebraic systems
Watterson estimator	Concept	Statistics
Work hardening	Concept	Mechanics of deformable solids
Biconditional elimination	Concept
Simple Lie algebra	Concept	Nonassociative rings and algebras
Brauer–Manin obstruction	Concept	Algebraic geometry
Fox–Wright function	Concept	Special functions
Robin boundary condition for convective cooling	Concept	Classical thermodynamics, heat transfer
Jucys–Murphy element	Concept
Criss-cross algorithm	Concept	Operations research, mathematical programming
Asymptotic scale	Concept	Approximations and expansions
Adjoint integral equation	Concept	Integral equations
Plus construction	Concept	K-theory
Kontorovich–Lebedev transform	Concept	Integral transforms, operational calculus
Continuous q-Hermite polynomials	Concept	Special functions
Naive set theory	Concept	Mathematical logic and foundations
Regular semigroup	Concept	Group theory and generalizations
Plateau–Rayleigh instability	Concept	Fluid mechanics
Colombeau algebra	Concept	Functional analysis
Cluster expansion	Concept	Statistical mechanics, structure of matter
Elliptic cohomology	Concept	Algebraic topology
Train track	Concept	Manifolds and cell complexes
Repeated game	Concept	Game theory, economics, finance, and other social and behavioral sciences
Linear matrix inequality	Concept	Linear and multilinear algebra; matrix theory
Polyharmonic spline	Concept	Approximations and expansions
Landau theory	Concept	Statistical mechanics, structure of matter
Normal fan	Concept	Convex and discrete geometry
Cryptographic hash function	Concept	Information and communication theory, circuits
Weak mathematical induction	Concept
Algebraic curve	Concept	Algebraic geometry
p-Laplacian	Concept	Partial differential equations
Semisimple Lie group	Concept	Topological groups, Lie groups
Harmony	Concept
Kleene–Brouwer order	Concept
Existence predicate	Concept
Canonical coordinates	Concept	Mechanics of particles and systems
Function field	Concept	Field theory and polynomials
Empirical process	Concept	Probability theory and stochastic processes
Grunsky matrix	Concept	Functions of a complex variable
Equidistribution modulo one	Concept	Number theory
Schwarz triangle function	Concept	Special functions
Cosmological perturbation theory	Concept	Relativity and gravitational theory
Subordinate connective	Concept
Néron–Severi group	Concept	Algebraic geometry
Hyperbolic conservation law	Concept	Partial differential equations
Implied volatility	Concept	Game theory, economics, finance, and other social and behavioral sciences
Sumset	Concept	Number theory
Factorization of polynomials over finite fields	Concept	Number theory
Fin heat transfer	Concept	Classical thermodynamics, heat transfer
Hemicontinuity	Concept	General topology
Dirac equation	Concept	Partial differential equations
Branch point	Concept	Functions of a complex variable
Polynomial operation	Concept	General algebraic systems
Nuclear operator	Concept	Operator theory
Propositional connective	Concept
Contraction semigroup	Concept	Operator theory
Brunt–Väisälä frequency	Concept	Fluid mechanics
Optical soliton	Concept	Optics, electromagnetic theory
Intuitionism	Concept	Mathematical logic and foundations
ADM energy	Concept	Relativity and gravitational theory
Pseudovariety	Concept	General algebraic systems
Paradoxical decomposition	Concept	Abstract harmonic analysis
Magnetic field	Concept	Optics, electromagnetic theory
Hotelling's T-squared distribution	Concept	Statistics
Order parameter	Concept	Statistical mechanics, structure of matter
Amalgamation property	Concept	Mathematical logic and foundations
Transverse isotropy	Concept	Mechanics of deformable solids
Low-discrepancy sequence	Concept	Number theory
Green's function of a Markov process	Concept	Probability theory and stochastic processes
Abstraction principle	Concept
Dirichlet process	Concept	Probability theory and stochastic processes
Homology with coefficients	Concept	Algebraic topology
Weyl–Titchmarsh theory	Concept	Ordinary differential equations
Cardinal points of an optical system	Concept	Optics, electromagnetic theory
Rational variety	Concept	Algebraic geometry
Coroot	Concept	Nonassociative rings and algebras
Linear-fractional programming	Concept	Operations research, mathematical programming
Well-powered category	Concept	Category theory; homological algebra
Gromov–Witten invariant	Concept	Algebraic geometry
Cardinal function	Concept	General topology
Semiprimary ring	Concept	Associative rings and algebras
Holographic principle	Concept	Relativity and gravitational theory
Stratified	Concept
Stability radius	Concept	Systems theory; control
Dynamical billiards	Concept	Dynamical systems and ergodic theory
Cobb–Douglas production function	Concept	Game theory, economics, finance, and other social and behavioral sciences
Numerical range	Concept	Operator theory
Seismic anisotropy	Concept	Geophysics
Prandtl boundary layer equations	Concept	Fluid mechanics
Reed–Muller code	Concept	Information and communication theory, circuits
Delta derivative on a time scale	Concept	Real functions
Tilting theory	Concept	Associative rings and algebras
Elliptic operator	Concept	Operator theory
Bondi mass	Concept	Relativity and gravitational theory
Umbilical point	Concept	Differential geometry
Piezoelectricity	Concept	Mechanics of deformable solids
Sequence space	Concept	Functional analysis
Radial basis function interpolation	Concept	Numerical analysis
Toric ideal	Concept	Commutative algebra
Homotopy equivalence	Concept	Algebraic topology
Kummer theory	Concept	Number theory
Mathematical statistics	Concept	Statistics
Tidal harmonic constituents	Concept	Geophysics
Finite-dimensional distributions	Concept	Probability theory and stochastic processes
Connected sum	Concept	Manifolds and cell complexes
Poisson–Mellin–Newton cycle	Concept	Integral transforms, operational calculus
Simple random sample	Concept	Statistics
Gaussian beam	Concept	Optics, electromagnetic theory
Primitive permutation group	Concept	Group theory and generalizations
Falling and rising factorials	Concept	Combinatorics
Liouville property of graphs	Concept	Potential theory
Monotone operator	Concept	Operator theory
Hahn polynomials	Concept	Special functions
Pseudoanalytic function	Concept	Functions of a complex variable
q-Pochhammer symbol	Concept	Combinatorics
Szegő kernel	Concept	Several complex variables and analytic spaces
Universal cover	Concept	Manifolds and cell complexes
Less	Concept
Mal'cev term	Concept	General algebraic systems
Algebraic K-theory of schemes	Concept	K-theory
Map projection	Concept	Geophysics
Newton series	Concept	Difference and functional equations
Monomorphism	Concept	Category theory; homological algebra
Homotopy principle	Concept	Global analysis, analysis on manifolds
Iwasawa theory	Concept	Number theory
Enriques surface	Concept	Algebraic geometry
Fredholm module	Concept	K-theory
Intermittency in turbulence	Concept	Fluid mechanics
Dolbeault cohomology	Concept	Several complex variables and analytic spaces
Deflection of the vertical	Concept	Geophysics
Cavity resonator	Concept	Optics, electromagnetic theory
Gravitational microlensing	Concept	Astronomy and astrophysics
Evolute	Concept	Differential geometry
Weissenberg number	Concept	Fluid mechanics
Class	Concept	Mathematical logic and foundations
Aharonov–Bohm effect	Concept	Quantum theory
Parity-check matrix	Concept	Information and communication theory, circuits
Class VII surface	Concept	Several complex variables and analytic spaces
Massive gravity	Concept	Relativity and gravitational theory
Sqbf	Concept
Riccati differential equation of optimal control	Concept	Calculus of variations and optimal control; optimization