Every idea

Ideas 5851–6000 of 14183.

Name	Kind	Subject
Landweber iteration	Theorem	Numerical analysis
Constant-mean-curvature surface	Definition	Differential geometry
Nuclear space	Definition	Functional analysis
Mixed finite element method	Concept	Numerical analysis
Height of a prime ideal	Concept	Commutative algebra
Faithfully flat module	Definition	Commutative algebra
Radon's theorem	Theorem	Convex and discrete geometry
Space of connections modulo gauge	Object	Global analysis, analysis on manifolds
Meixner polynomials	Definition	Special functions
Gaussian curvature	Definition	Differential geometry
Subdirect product	Concept	General algebraic systems
Diagram	Definition	Category theory; homological algebra
Convolution power	Definition	Integral transforms, operational calculus
Schrödinger operator	Concept	Ordinary differential equations
Mutual absolute continuity of harmonic measures	Proposition	Potential theory
Diagonally dominant matrix	Concept	Linear and multilinear algebra; matrix theory
Gauss–Hermite quadrature	Theorem	Numerical analysis
Hereditary ring	Concept	Associative rings and algebras
Tracy–Widom distribution	Concept	Probability theory and stochastic processes
Amitsur's noncrossed product	Counterexample	Associative rings and algebras
Fekete's lemma	Lemma	Sequences, series, summability
Dual object	Concept	Category theory; homological algebra
Regularity of minimizers	Concept	Calculus of variations and optimal control; optimization
Lusin area integral	Definition	Harmonic analysis on Euclidean spaces
Harmonic map	Definition	Global analysis, analysis on manifolds
Holomorphic map between Riemann surfaces	Definition	Functions of a complex variable
McDiarmid's inequality	Theorem	Probability theory and stochastic processes
Specialization preorder	Definition	General topology
Fokker–Planck equation	Definition	Partial differential equations
Schlömilch's generalization of the condensation test	Theorem	Sequences, series, summability
Metaplectic group	Example	Topological groups, Lie groups
Separably closed field	Concept	Field theory and polynomials
Cauchy-type integral	Definition	Functions of a complex variable
Wishart distribution	Concept	Statistics
Bar resolution	Concept	Group theory and generalizations
Epigraph	Concept	Convex and discrete geometry
Steiner symmetrization	Concept	Convex and discrete geometry
Leray spectral sequence	Theorem	Algebraic topology
Thomson's principle	Theorem	Potential theory
Bar resolution	Definition	Group theory and generalizations
Kantorovich polynomials	Concept	Approximations and expansions
van der Waerden conjecture on permanents	Theorem	Linear and multilinear algebra; matrix theory
Modality of a singularity	Concept	Global analysis, analysis on manifolds
Lévy's characterization of Brownian motion	Theorem	Probability theory and stochastic processes
Approximation property	Concept	Functional analysis
Geometric integrator	Definition	Dynamical systems and ergodic theory
Resultant	Definition	Commutative algebra
Weierstrass excess function	Definition	Calculus of variations and optimal control; optimization
Dirichlet problem	Problem	Potential theory
Holomorphy on Banach spaces	Definition	Functional analysis
f-vector and h-vector	Definition	Combinatorics
Borel summation	Concept	Sequences, series, summability
Free product	Definition	Group theory and generalizations
Asymptotic normality of the maximum likelihood estimator	Theorem	Statistics
Projective hierarchy	Concept	Mathematical logic and foundations
Forward difference operator	Concept	Difference and functional equations
Principal bundle	Concept	Algebraic topology
Minimax estimator	Concept	Statistics
Order complex	Definition	Order, lattices, ordered algebraic structures
Painlevé property	Concept	Ordinary differential equations
Central polynomial	Definition	Associative rings and algebras
Frobenius algebra	Concept	Associative rings and algebras
Bessel potential space	Definition	Functional analysis
Primitive ring	Concept	Associative rings and algebras
Directed set	Definition	Order, lattices, ordered algebraic structures
Fusion category	Definition	Category theory; homological algebra
WZ theory	Concept	Combinatorics
Anosov flow	Concept	Dynamical systems and ergodic theory
Logarithmically convex function	Concept	Real functions
Borel determinacy theorem	Theorem	Mathematical logic and foundations
Boolean-valued model	Definition	Mathematical logic and foundations
Box–Muller transform	Theorem	Numerical analysis
Commuting matrices	Concept	Linear and multilinear algebra; matrix theory
Doubling measure	Definition	Measure and integration
Unit disc	Object	Functions of a complex variable
Rational homotopy theory	Concept	Algebraic topology
Admissible control	Definition	Calculus of variations and optimal control; optimization
Empirical Bayes method	Concept	Statistics
Gabor transform	Concept	Harmonic analysis on Euclidean spaces
Multidimensional Z-transform	Definition	Integral transforms, operational calculus
Bonferroni correction	Concept	Statistics
Legendre's relation	Theorem	Special functions
Mann–Whitney U test	Definition	Statistics
Haefliger structure	Concept	Manifolds and cell complexes
Directional statistics	Concept	Statistics
Lévy–Prokhorov metric	Concept	Probability theory and stochastic processes
Ornstein isomorphism theorem	Theorem	Dynamical systems and ergodic theory
4-manifold	Concept	Manifolds and cell complexes
Richardson extrapolation	Definition	Numerical analysis
Determinant line bundle	Definition	Global analysis, analysis on manifolds
BK-space	Concept	Functional analysis
Associated graded ring	Concept	Commutative algebra
Crossed product	Concept	Functional analysis
Field norm	Definition	Field theory and polynomials
Central difference	Definition	Difference and functional equations
Almost convergence	Concept	Sequences, series, summability
Fredholm operator	Concept	Operator theory
Multivariate analysis of variance	Concept	Statistics
Besicovitch–Federer projection theorem	Theorem	Measure and integration
Invertible sheaf	Definition	Algebraic geometry
Additive energy	Definition	Number theory
Minimum description length	Concept	Statistics
Robinson–Schensted–Knuth correspondence	Theorem	Combinatorics
Root-finding algorithm	Definition	Numerical analysis
Little q-Jacobi polynomials	Definition	Special functions
Orthocentric system	Concept	Geometry
Beta function	Definition	Special functions
Graded ring	Concept	Commutative algebra
Symplectic capacity	Concept	Differential geometry
Generalized Poincaré conjecture	Theorem	Manifolds and cell complexes
Matching pursuit	Concept	Approximations and expansions
Integral equation of the second kind	Concept	Integral equations
Krull domain	Definition	Commutative algebra
Formally smooth map	Concept	Commutative algebra
Homotopy lifting property	Definition	Algebraic topology
Stability of Volterra equations	Concept	Integral equations
Tricomi equation	Definition	Partial differential equations
Regular open set	Definition	General topology
Admissible control	Concept	Calculus of variations and optimal control; optimization
Quasi-analytic function	Definition	Real functions
Proof that cyclic groups are abelian	Proof	Group theory and generalizations
Short exact sequence	Definition	Category theory; homological algebra
Uniform convergence of Bernstein approximations	Theorem	Approximations and expansions
Loop group	Example	Topological groups, Lie groups
F-sigma set	Concept	General topology
Hyperoval	Definition	Geometry
Total ring of fractions	Definition	Commutative algebra
600-cell	Object	Geometry
Word metric	Definition	Group theory and generalizations
Essential submodule	Concept	Associative rings and algebras
F-test	Concept	Statistics
Dirichlet series	Concept	Number theory
Pseudospectral optimal control	Definition	Calculus of variations and optimal control; optimization
Homotopy group with coefficients	Concept	Algebraic topology
Benz plane	Definition	Geometry
Kaplansky's theorem on PI rings	Theorem	Associative rings and algebras
Hermitian form	Definition	Linear and multilinear algebra; matrix theory
Classical ring of quotients	Definition	Associative rings and algebras
Riemann–Stieltjes integral	Definition	Real functions
G-delta set	Definition	General topology
Lévy process	Concept	Probability theory and stochastic processes
Density theorem	Theorem	Category theory; homological algebra
Spectral element method	Definition	Numerical analysis
Symbolic dynamics	Definition	Dynamical systems and ergodic theory
Kolmogorov complexity	Concept	Computer science
Ramanujan's series for 1/pi	Theorem	Number theory
Volterra equation of the first kind	Definition	Integral equations
Total variation	Concept	Real functions
Principal curvature	Definition	Differential geometry
Artin group	Definition	Group theory and generalizations