Nodes at W0, stub

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

Ideas 15151–15300 of 18049.

Name	Kind	Subject
Elastic net	Concept	Statistics
Data assimilation	Concept	Geophysics
Taft algebra	Example	Associative rings and algebras
Function of exponential order	Concept	Integral transforms, operational calculus
Su–Schrieffer–Heeger model	Example	Statistical mechanics, structure of matter
Domain decomposition methods	Definition	Numerical analysis
Schur product theorem	Theorem	Linear and multilinear algebra; matrix theory
Proper holomorphic map	Concept	Several complex variables and analytic spaces
Löwner–John theorem	Theorem	Convex and discrete geometry
Free product	Concept	Group theory and generalizations
Borel density theorem	Theorem	Topological groups, Lie groups
Boundary value problem	Concept	Ordinary differential equations
Identity of an algebra	Concept	Nonassociative rings and algebras
Nevanlinna class	Definition	Functions of a complex variable
Scott continuity	Definition	Order, lattices, ordered algebraic structures
Eichler order	Definition	Number theory
Separation principle	Theorem	Systems theory; control
Degree of a continuous map	Concept	Algebraic topology
Semilocally simply connected space	Definition	Manifolds and cell complexes
Semiprimitive ring	Definition	Associative rings and algebras
Bifurcation in a family of maps	Definition	Difference and functional equations
Gegenbauer transform	Concept	Integral transforms, operational calculus
Primary ideal	Concept	Commutative algebra
Iterated function system	Definition	Measure and integration
Directed percolation	Example	Statistical mechanics, structure of matter
Neighborly polytope	Definition	Convex and discrete geometry
Nome	Definition	Special functions
Friendship theorem	Theorem	Combinatorics
Laplacian matrix	Concept	Combinatorics
Computably enumerable set	Concept	Mathematical logic and foundations
Acoustoelastic effect	Definition	Mechanics of deformable solids
Critical number	Concept	Real functions
Formal group law in topology	Concept	Algebraic topology
Wheeler–DeWitt equation	Concept	Relativity and gravitational theory
Roe solver	Proposition	Numerical analysis
Hadamard three-circle theorem for subharmonic functions	Theorem	Potential theory
Baby Monster group	Object	Group theory and generalizations
Newton's method in optimization	Concept	Operations research, mathematical programming
Random graph	Concept	Combinatorics
Fundamental theorem of space curves	Theorem	Differential geometry
Stable vector bundle	Definition	Algebraic geometry
Approximately additive function	Definition	Difference and functional equations
Bürmann–Lagrange series	Theorem	Functions of a complex variable
Rank-one convexity	Definition	Calculus of variations and optimal control; optimization
RP	Concept	Computer science
Complex powers of elliptic operators	Definition	Global analysis, analysis on manifolds
Whitehead link	Example	Manifolds and cell complexes
Nonzero subspaces of R^n have a basis and a well-defined dimension	Theorem	Linear and multilinear algebra; matrix theory
Proper map	Definition	General topology
Fejér's theorem	Theorem	Harmonic analysis on Euclidean spaces
Romberg's method	Definition	Numerical analysis
Barycentric interpolation formula	Proposition	Numerical analysis
Hörmander's L2 estimates	Theorem	Several complex variables and analytic spaces
Parabolic subalgebra	Concept	Nonassociative rings and algebras
Axiom of dependent choice	Definition	Mathematical logic and foundations
Federer–Fleming compactness theorem	Theorem	Calculus of variations and optimal control; optimization
Hyers–Ulam stability	Concept	Difference and functional equations
Lang's conjectures	Conjecture	Algebraic geometry
Cyclic polytope	Definition	Convex and discrete geometry
String-searching algorithm	Concept	Computer science
State observer	Concept	Systems theory; control
Orthogonal Lie algebra	Example	Nonassociative rings and algebras
Lemniscate elliptic functions	Concept	Special functions
Tollmien–Schlichting wave	Concept	Fluid mechanics
Local regression	Concept	Statistics
Simplicial approximation theorem	Theorem	Algebraic topology
Coherent state	Concept	Quantum theory
Coplanarity	Definition	Geometry
Supermanifold	Definition	Global analysis, analysis on manifolds
Merton model of credit risk	Concept	Game theory, economics, finance, and other social and behavioral sciences
Reverse mathematics	Definition	Mathematical logic and foundations
Tree automaton	Concept	Computer science
Cutoff frequency	Concept	Optics, electromagnetic theory
Rank–nullity theorem for matrices	Theorem	Linear and multilinear algebra; matrix theory
Root-finding algorithm	Concept	Numerical analysis
Tame Fréchet space	Definition	Functional analysis
Closure of an operator	Concept	Operator theory
Jacobi polynomials	Concept	Special functions
Pitchfork bifurcation	Definition	Ordinary differential equations
Sato–Tate conjecture	Theorem	Number theory
Vickrey auction	Definition	Game theory, economics, finance, and other social and behavioral sciences
Fermi's golden rule	Fact	Quantum theory
Jet	Definition	Global analysis, analysis on manifolds
Endomorphism ring of a simple module is a division ring	Corollary	Associative rings and algebras
Hankel matrix	Definition	Linear and multilinear algebra; matrix theory
Ill-posedness of real Laplace inversion	Concept	Integral transforms, operational calculus
Wardrop equilibrium	Definition	Operations research, mathematical programming
Karnaugh map	Concept	Information and communication theory, circuits
Gauss sum	Definition	Number theory
No-three-in-line problem	Problem	Convex and discrete geometry
Gromov–Hausdorff convergence	Definition	Differential geometry
Limit analysis	Concept	Mechanics of deformable solids
Lindelöf's maximum principle	Lemma	Potential theory
Wave function	Definition	Quantum theory
Martensitic transformation	Definition	Mechanics of deformable solids
Topological ring	Concept	Associative rings and algebras
Lundberg inequality	Theorem	Game theory, economics, finance, and other social and behavioral sciences
Pick matrix	Concept	Functions of a complex variable
Helmholtz decomposition of electromagnetic fields	Theorem	Optics, electromagnetic theory
Discrete Fourier transform	Concept	Numerical analysis
Strict hyperbolicity	Definition	Partial differential equations
Bounded approximate identity of L1(G)	Proposition	Abstract harmonic analysis
Elimination theory	Definition	Commutative algebra
Initial algebra	Definition	Category theory; homological algebra
Logicism	Definition	Mathematical logic and foundations
Partial correlation	Concept	Statistics
Communication complexity	Definition	Computer science
Color Lie algebra	Concept	Nonassociative rings and algebras
Meromorphic function of several variables	Definition	Several complex variables and analytic spaces
Robinson arithmetic	Definition	Mathematical logic and foundations
Riesz representation theorem	Theorem	Functional analysis
Proximal gradient method	Definition	Operations research, mathematical programming
Stokes phenomenon	Concept	Ordinary differential equations
Rate equation	Concept	Classical thermodynamics, heat transfer
Spectral density estimation	Concept	Statistics
Calculus of inductive constructions	Definition	Mathematical logic and foundations
Darrieus–Landau instability	Definition	Fluid mechanics
Quantum calculus	Definition	Combinatorics
Absolutely free algebra	Concept	General algebraic systems
Kolmogorov's three-series theorem	Theorem	Probability theory and stochastic processes
Atom	Concept	Order, lattices, ordered algebraic structures
Bianchi identities	Theorem	Differential geometry
Newman–Penrose formalism	Concept	Relativity and gravitational theory
NK groups	Concept	K-theory
Locally finite poset	Concept	Order, lattices, ordered algebraic structures
Shock wave in gases	Definition	Fluid mechanics
Parallel transport	Concept	Differential geometry
Nondeterministic Turing machine	Definition	Computer science
Group velocity	Definition	Optics, electromagnetic theory
Near and far field	Concept	Optics, electromagnetic theory
Burke–Schumann flame	Example	Classical thermodynamics, heat transfer
Orientability	Definition	Manifolds and cell complexes
Boole's rule	Theorem	Numerical analysis
Dual pair	Definition	Functional analysis
Seismic anisotropy	Definition	Geophysics
Bloch group	Definition	K-theory
Poincaré recurrence theorem	Theorem	Dynamical systems and ergodic theory
Invertible module	Definition	Commutative algebra
Congruence-permutable variety	Definition	General algebraic systems
Penrose process	Proposition	Relativity and gravitational theory
Torsion tensor	Definition	Differential geometry
Serial ring	Concept	Associative rings and algebras
Jukes–Cantor model	Concept	Biology and other natural sciences
Social choice theory	Definition	Game theory, economics, finance, and other social and behavioral sciences
Measurable solutions of Cauchy's equation	Theorem	Difference and functional equations
Atkinson index	Concept	Game theory, economics, finance, and other social and behavioral sciences
Quantum logic	Definition	Quantum theory
Optical depth	Concept	Astronomy and astrophysics
Cyclotomic extension	Definition	Field theory and polynomials
Finite type invariant	Concept	Manifolds and cell complexes