Nodes at W0, stub

A tag, a kind, a name, an inventory row, and a same_as or a source.

Ideas 8401–8550 of 10216.

Name	Kind	Subject
Prolate spheroidal wave functions	Definition	Special functions
Weyl's unitary trick	Definition	Topological groups, Lie groups
Adele ring	Concept	Number theory
Loop-erased random walk	Definition	Probability theory and stochastic processes
Puiseux series	Concept	Commutative algebra
Krein space	Definition	Functional analysis
Scorer's function	Definition	Special functions
Hölder's theorem	Theorem	Special functions
Block system	Concept	Group theory and generalizations
Linking number	Concept	Manifolds and cell complexes
Hilbertian field	Concept	Field theory and polynomials
Fourier coefficient	Definition	Harmonic analysis on Euclidean spaces
Ore localization	Concept	Associative rings and algebras
Delaunay triangulation	Definition	Convex and discrete geometry
Excision theorem	Theorem	Algebraic topology
Duffing equation	Example	Ordinary differential equations
Walsh function	Definition	Harmonic analysis on Euclidean spaces
Cayley–Hamilton theorem for modules	Proposition	Commutative algebra
Green's function	Concept	Ordinary differential equations
Singular homology	Definition	Algebraic topology
24-cell	Object	Geometry
Local class field theory	Concept	Number theory
Order of an entire function	Concept	Functions of a complex variable
Siegel zero	Definition	Number theory
Gumm terms	Concept	General algebraic systems
Chain homotopy	Definition	Category theory; homological algebra
Julia set	Definition	Dynamical systems and ergodic theory
Elliptic curve	Definition	Algebraic geometry
Homology sphere	Definition	Manifolds and cell complexes
f-vector	Definition	Convex and discrete geometry
Vlasov equation	Concept	Partial differential equations
Hamilton–Jacobi–Bellman equation	Concept	Calculus of variations and optimal control; optimization
Krull's principal ideal theorem	Theorem	Commutative algebra
Weak solution	Concept	Partial differential equations
Homotopy type	Concept	Algebraic topology
Monodromy	Definition	Ordinary differential equations
Tracy–Widom distribution	Definition	Probability theory and stochastic processes
Euler–Gauss limit formula	Theorem	Special functions
Hypoelliptic operator	Definition	Partial differential equations
Lefschetz principle	Theorem	Mathematical logic and foundations
Hellinger distance	Concept	Statistics
Golay code	Object	Information and communication theory, circuits
Hom functor	Definition	Category theory; homological algebra
Group algebra	Definition	Group theory and generalizations
Null-homotopic map	Concept	Algebraic topology
Tensor product of modules	Definition	Commutative algebra
Comparability graph	Definition	Combinatorics
Grothendieck universe	Concept	Mathematical logic and foundations
Tensor rank	Definition	Linear and multilinear algebra; matrix theory
Left-invariant vector field	Concept	Topological groups, Lie groups
Laplace's equation	Definition	Partial differential equations
Expectation–maximization algorithm	Definition	Statistics
Generalized Fourier series	Concept	Harmonic analysis on Euclidean spaces
Whitney immersion theorem	Theorem	Manifolds and cell complexes
Wang's finiteness theorem	Theorem	Topological groups, Lie groups
Delay differential equation	Definition	Ordinary differential equations
Hasse principle	Definition	Number theory
Non-Euclidean geometry	Concept	Geometry
Segre's theorem	Theorem	Geometry
Topological group structure of a vector space	Concept	Functional analysis
Spherical geometry	Concept	Geometry
Auslander–Buchsbaum formula	Theorem	Commutative algebra
Carleson measure	Concept	Functions of a complex variable
Hadamard product	Concept	Linear and multilinear algebra; matrix theory
Gaussian curvature	Concept	Differential geometry
Abelian extension	Definition	Field theory and polynomials
Ultrafilter	Definition	General topology
Hotelling's T-squared distribution	Definition	Statistics
Weak homotopy equivalence	Definition	Algebraic topology
String diagram	Definition	Category theory; homological algebra
Braid group	Definition	Group theory and generalizations
Convergence of Fourier series	Definition	Harmonic analysis on Euclidean spaces
Polynomial interpolation	Concept	Approximations and expansions
Bäcklund transform	Concept	Dynamical systems and ergodic theory
Beth number	Concept	Mathematical logic and foundations
Complete set of orthogonal idempotents	Concept	Associative rings and algebras
Pitman–Koopman–Darmois theorem	Theorem	Statistics
Inner regular measure	Definition	Measure and integration
Hausdorff dimension	Concept	Measure and integration
Monomorphism	Definition	Category theory; homological algebra
Elliptic boundary value problem	Definition	Partial differential equations
Betti number	Concept	Algebraic topology
Tight frame	Definition	Harmonic analysis on Euclidean spaces
Poisson regression	Concept	Statistics
Boolean prime ideal theorem	Theorem	Mathematical logic and foundations
Krull dimension of a poset	Definition	Order, lattices, ordered algebraic structures
Inductive dimension	Definition	General topology
Calabi–Yau manifold	Concept	Algebraic geometry
Moise's theorem	Theorem	Manifolds and cell complexes
Surface of general type	Concept	Algebraic geometry
Cusp form	Definition	Number theory
Non-atomic measure	Concept	Measure and integration
Trigonometric interpolation	Concept	Harmonic analysis on Euclidean spaces
Isomonodromic deformation	Definition	Ordinary differential equations
Kummer–Artin–Schreier–Witt theory	Definition	Field theory and polynomials
Hadwiger covering conjecture	Conjecture	Convex and discrete geometry
Large sieve	Definition	Number theory
Valuation	Definition	Field theory and polynomials
Lindelöf space	Concept	General topology
Strict partial order	Definition	Order, lattices, ordered algebraic structures
Linearly disjoint extensions	Definition	Field theory and polynomials
Deformation theory	Concept	Algebraic geometry
Burkholder–Davis–Gundy inequality	Theorem	Probability theory and stochastic processes
Rational point	Concept	Algebraic geometry
Crossing number	Concept	Manifolds and cell complexes
Universal covering group	Concept	Topological groups, Lie groups
Functor of points	Concept	Algebraic geometry
Alexander–Spanier cohomology	Definition	Algebraic topology
Doob–Meyer decomposition theorem	Theorem	Probability theory and stochastic processes
Cartan–Eilenberg resolution	Concept	Category theory; homological algebra
Determinantal ideal	Concept	Commutative algebra
Secretary problem	Problem	Probability theory and stochastic processes
Spherical trigonometry	Concept	Geometry
Sequential probability ratio test	Concept	Statistics
Newton polytope	Definition	Algebraic geometry
Minkowski addition	Concept	Convex and discrete geometry
Universal enveloping algebra	Definition	Nonassociative rings and algebras
Irreducible component	Concept	Algebraic geometry
Quillen adjunction	Concept	Category theory; homological algebra
Banach limit	Concept	Sequences, series, summability
Decay of the Fourier transform of surface measure	Theorem	Harmonic analysis on Euclidean spaces
Euler characteristic	Definition	Algebraic topology
Matroid rank	Concept	Combinatorics
Bogomolov–Miyaoka–Yau inequality	Theorem	Algebraic geometry
Dual matroid	Definition	Combinatorics
Lusternik–Schnirelmann theorem	Theorem	Algebraic topology
Lie group method for PDEs	Definition	Partial differential equations
Kantorovich–Rubinstein duality	Theorem	Calculus of variations and optimal control; optimization
Manifold with corners	Concept	Global analysis, analysis on manifolds
Hadamard's example of ill-posedness	Counterexample	Partial differential equations
Cross-validation	Definition	Statistics
Szegő's theorem	Theorem	Harmonic analysis on Euclidean spaces
Semiorder	Definition	Order, lattices, ordered algebraic structures
Bounded poset	Definition	Order, lattices, ordered algebraic structures
Fundamental domain of the modular group	Example	Number theory
Reduced ring	Concept	Commutative algebra
Admissible representation	Concept	Topological groups, Lie groups
Ordinary point and singular point	Definition	Ordinary differential equations
Fourier–Legendre series	Definition	Harmonic analysis on Euclidean spaces
Simpson's paradox	Counterexample	Statistics
Permutohedron	Example	Convex and discrete geometry
Complemented lattice	Definition	Order, lattices, ordered algebraic structures
Morphism of finite type	Definition	Algebraic geometry
Subalgebra lattice	Concept	General algebraic systems
Band matrix	Definition	Linear and multilinear algebra; matrix theory
Holomorphic map between Riemann surfaces	Concept	Functions of a complex variable
Mathieu groups	Object	Group theory and generalizations
Borel–Moore homology	Concept	Algebraic topology
Compositum of fields	Concept	Field theory and polynomials
Partial autocorrelation function	Definition	Statistics