Every idea

Ideas 7651–7800 of 14183.

Name	Kind	Subject
Optional stopping theorem	Theorem	Probability theory and stochastic processes
Fejér kernel	Concept	Harmonic analysis on Euclidean spaces
de Casteljau's algorithm	Definition	Numerical analysis
Favard constant	Definition	Approximations and expansions
Ricker wavelet	Example	Harmonic analysis on Euclidean spaces
Marchenko–Pastur law	Theorem	Probability theory and stochastic processes
f-vector and h-vector	Concept	Combinatorics
Newtonian potential	Concept	Potential theory
Duality in projective geometry	Concept	Geometry
Schauder fixed-point theorem	Theorem	Operator theory
Congruence relation	Concept	General algebraic systems
FKG inequality	Theorem	Probability theory and stochastic processes
Adams spectral sequence	Theorem	Algebraic topology
Finite speed of propagation	Theorem	Partial differential equations
Bailey's lemma	Lemma	Special functions
Kleene fixed-point theorem	Theorem	Order, lattices, ordered algebraic structures
Earnshaw's theorem	Theorem	Potential theory
Newton's forward difference formula	Theorem	Difference and functional equations
Weyl's unitary trick	Concept	Topological groups, Lie groups
Cartan's theorem on continuous homomorphisms	Theorem	Topological groups, Lie groups
Tor functor	Concept	Commutative algebra
Beurling's projection theorem	Theorem	Functions of a complex variable
Real closed field	Example	Field theory and polynomials
Tameness theorem	Theorem	Manifolds and cell complexes
Segal conjecture	Theorem	Algebraic topology
Inverse limit of algebras	Concept	General algebraic systems
Hilbert sum	Definition	Functional analysis
Möbius plane	Concept	Geometry
Complete statistic	Concept	Statistics
c-cyclical monotonicity	Definition	Calculus of variations and optimal control; optimization
Hilbert space adjoint	Definition	Operator theory
Nevanlinna theory in several variables	Concept	Several complex variables and analytic spaces
von Neumann regular ring	Definition	Associative rings and algebras
Fredholm equation of the second kind	Concept	Integral equations
Monad from an adjunction	Proposition	Category theory; homological algebra
Permutation pattern	Definition	Combinatorics
Bochner's formula	Theorem	Differential geometry
Morin singularities	Concept	Manifolds and cell complexes
Mixing	Definition	Dynamical systems and ergodic theory
Coherent ring	Definition	Commutative algebra
Minimal surface	Definition	Differential geometry
Mal'cev's characterization of quasivarieties	Theorem	General algebraic systems
Critical point theory	Definition	Global analysis, analysis on manifolds
Mal'cev's theorem on congruence permutability	Theorem	General algebraic systems
Integral of a non-negative function	Concept	Measure and integration
Oscillation theory	Definition	Ordinary differential equations
Complete measure	Definition	Measure and integration
Gibbs measure	Concept	Dynamical systems and ergodic theory
Conformal radius	Definition	Functions of a complex variable
Porous medium equation	Concept	Partial differential equations
Disk algebra	Concept	Functional analysis
Lawvere theory	Definition	Category theory; homological algebra
Term evaluation	Concept	General algebraic systems
Plancherel theorem for groups	Theorem	Topological groups, Lie groups
Moving frame	Definition	Differential geometry
Pentagon lattice N5	Example	Order, lattices, ordered algebraic structures
Curry–Schoenberg theorem	Theorem	Approximations and expansions
Cartier–Milnor–Moore theorem	Theorem	Associative rings and algebras
Existence of Leray weak solutions	Theorem	Partial differential equations
Pólya urn model	Example	Probability theory and stochastic processes
Five-point stencil	Definition	Numerical analysis
Subnormal number	Concept	Numerical analysis
Group algebra of a locally compact group	Definition	Topological groups, Lie groups
Yau–Tian–Donaldson conjecture	Theorem	Several complex variables and analytic spaces
Measurable space	Definition	Measure and integration
Linear-quadratic-Gaussian control	Problem	Systems theory; control
Polydisc	Concept	Several complex variables and analytic spaces
Integral operator	Definition	Operator theory
Quasi-primal algebra	Definition	General algebraic systems
McKenzie–Hobby tame congruence theory	Concept	General algebraic systems
Spearman's rank correlation coefficient	Concept	Statistics
Unitary operator	Definition	Operator theory
Singular simplicial set	Definition	Algebraic topology
Oracle machine	Definition	Mathematical logic and foundations
Affine arithmetic	Definition	Numerical analysis
Discrete differential geometry	Concept	Differential geometry
Doob's h-transform	Definition	Probability theory and stochastic processes
Absolute neighborhood retract	Concept	General topology
Nilpotent operator	Concept	Operator theory
Nilpotent Lie group	Concept	Topological groups, Lie groups
Sentence	Concept	Mathematical logic and foundations
Dedekind–MacNeille completion	Concept	Order, lattices, ordered algebraic structures
Cahn–Hilliard equation	Concept	Partial differential equations
Shooting method	Definition	Numerical analysis
Generalized polygon	Definition	Geometry
p-Laplacian	Definition	Partial differential equations
Meijer G-function	Definition	Special functions
Clifford analysis	Concept	Functions of a complex variable
Open subgroups are closed	Proposition	Topological groups, Lie groups
Hadamard matrix	Definition	Combinatorics
Breakdown point	Definition	Statistics
Delta method	Theorem	Statistics
Chebyshev constant	Concept	Potential theory
Random dynamical system	Concept	Dynamical systems and ergodic theory
Pointed cone	Definition	Convex and discrete geometry
Linear algebra method	Concept	Combinatorics
The local ring of holomorphic germs is Noetherian and factorial	Theorem	Several complex variables and analytic spaces
Pontryagin class	Concept	Manifolds and cell complexes
Transformation semigroup	Definition	Group theory and generalizations
Computable set	Definition	Mathematical logic and foundations
Median algebra	Concept	Order, lattices, ordered algebraic structures
Nehari's theorem on univalence	Theorem	Functions of a complex variable
Dedekind–MacNeille completion	Definition	Order, lattices, ordered algebraic structures
Volterra integral equation	Concept	Integral equations
Point process	Concept	Probability theory and stochastic processes
Localization of a category	Concept	Category theory; homological algebra
Generalized Riemann hypothesis	Conjecture	Number theory
M-matrix	Concept	Linear and multilinear algebra; matrix theory
Monadic functor	Concept	Category theory; homological algebra
Logarithmic kernel	Definition	Potential theory
Lucas sequence	Example	Number theory
Embedding dimension	Concept	Commutative algebra
Rotation number	Concept	Dynamical systems and ergodic theory
Commutative algebra over a ring	Concept	Commutative algebra
Facet	Concept	Convex and discrete geometry
Dual graph	Definition	Combinatorics
Absolute Galois group	Definition	Field theory and polynomials
Stiffness matrix	Definition	Numerical analysis
Relaxation of a variational problem	Concept	Calculus of variations and optimal control; optimization
Fourier transform	Concept	Harmonic analysis on Euclidean spaces
Wald test	Concept	Statistics
Stable homotopy category	Definition	Algebraic topology
Local solvability	Definition	Partial differential equations
Majority term	Definition	General algebraic systems
Clopen set	Concept	General topology
Function field	Definition	Field theory and polynomials
Veronese embedding	Example	Algebraic geometry
Tangent bundle	Definition	Global analysis, analysis on manifolds
Shape operator	Concept	Differential geometry
Subnormal subgroup	Definition	Group theory and generalizations
Euler's sine product	Theorem	Functions of a complex variable
Hausdorff distance	Definition	General topology
Contiguity of measures	Concept	Statistics
Monodromy theorem for singularities	Theorem	Several complex variables and analytic spaces
Heaviside operational calculus	Definition	Integral transforms, operational calculus
Trace form	Definition	Field theory and polynomials
Supporting hyperplane theorem	Theorem	Convex and discrete geometry
Regular surface	Definition	Differential geometry
Extremal graph theory	Definition	Combinatorics
Integral closure	Definition	Commutative algebra
Donaldson theory	Definition	Manifolds and cell complexes
Sokhotski–Plemelj formulae	Theorem	Functions of a complex variable
Hopf's theorem on cohomology of compact Lie groups	Theorem	Manifolds and cell complexes
Complexification of a Lie group	Concept	Topological groups, Lie groups
Hilbert–Smith conjecture	Conjecture	Manifolds and cell complexes
Diffeology	Definition	Global analysis, analysis on manifolds
Kan extension	Definition	Category theory; homological algebra
Near-field	Concept	Field theory and polynomials
Kaplansky's conjectures	Conjecture	Associative rings and algebras
Coherent analytic sheaf	Concept	Several complex variables and analytic spaces