Nodes at W0, stub

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

Ideas 9151–9300 of 12399.

Name	Kind	Subject
Symplectic vector space	Concept	Linear and multilinear algebra; matrix theory
Classical group	Definition	Group theory and generalizations
Kullback–Leibler divergence	Concept	Information and communication theory, circuits
Equivalence of Boolean rings and Boolean algebras	Theorem	Order, lattices, ordered algebraic structures
Natural boundary	Concept	Functions of a complex variable
Infinitary logic	Concept	Mathematical logic and foundations
von Neumann mean ergodic theorem	Theorem	Operator theory
Pro-object	Definition	Category theory; homological algebra
Binary quadratic form	Definition	Number theory
Measure	Concept	Measure and integration
Separation of variables	Definition	Ordinary differential equations
Playfair's axiom	Fact	Geometry
Riesz measure of a subharmonic function	Concept	Potential theory
U-statistic	Definition	Statistics
Biharmonic equation	Definition	Potential theory
Tian–Todorov theorem	Theorem	Several complex variables and analytic spaces
Stochastic partial differential equation	Concept	Probability theory and stochastic processes
Seiberg–Witten invariants	Concept	Manifolds and cell complexes
Subobject classifier	Definition	Category theory; homological algebra
Eta invariant	Concept	Global analysis, analysis on manifolds
Paratopological group	Definition	Topological groups, Lie groups
Alexander's theorem on closed braids	Theorem	Manifolds and cell complexes
Euler–Lagrange equation	Concept	Calculus of variations and optimal control; optimization
Vector measure	Concept	Measure and integration
Noncommutative geometry	Concept	Global analysis, analysis on manifolds
Basic open set	Definition	Algebraic geometry
Rudin–Shapiro polynomials	Example	Harmonic analysis on Euclidean spaces
Janko groups	Object	Group theory and generalizations
Von Neumann algebra	Concept	Functional analysis
Amoeba	Concept	Algebraic geometry
IEEE 754 standard	Definition	Numerical analysis
Beurling–Ahlfors transform	Definition	Harmonic analysis on Euclidean spaces
Riemannian distance	Definition	Differential geometry
Complex manifold	Definition	Several complex variables and analytic spaces
Descartes's theorem on total angular defect	Theorem	Convex and discrete geometry
Fractional Brownian motion	Definition	Probability theory and stochastic processes
Quasi-coherent sheaf	Definition	Algebraic geometry
Killing vector field	Definition	Differential geometry
Gauss–Kronrod quadrature formula	Concept	Numerical analysis
Bayesian hierarchical model	Definition	Statistics
Clone	Concept	General algebraic systems
Bifurcation theory	Definition	Dynamical systems and ergodic theory
Premeasure	Concept	Measure and integration
L-estimator	Definition	Statistics
Spectral theory of dynamical systems	Definition	Dynamical systems and ergodic theory
Lindelöf hypothesis	Conjecture	Number theory
Partial differential equation	Definition	Partial differential equations
Sublattice	Concept	Order, lattices, ordered algebraic structures
Grauert's solution of the Levi problem for manifolds	Theorem	Several complex variables and analytic spaces
Transport equation	Concept	Partial differential equations
Doubling on the integers is not an isomorphism	Example	Group theory and generalizations
Faber polynomials	Concept	Functions of a complex variable
Matroid	Definition	Combinatorics
Weak ordering	Concept	Order, lattices, ordered algebraic structures
Small cancellation theory	Definition	Group theory and generalizations
Wilf–Zeilberger pair	Definition	Special functions
Sawtooth wave	Example	Harmonic analysis on Euclidean spaces
Laplace transform of distributions	Definition	Functional analysis
Unknotting number	Concept	Manifolds and cell complexes
Antipode	Definition	Associative rings and algebras
Hodge Laplacian	Concept	Global analysis, analysis on manifolds
Signature	Definition	Mathematical logic and foundations
Grothendieck universe	Definition	Mathematical logic and foundations
Levy–Desplanques theorem	Theorem	Linear and multilinear algebra; matrix theory
Perfect closure	Concept	Field theory and polynomials
Cyclic extension	Definition	Field theory and polynomials
Atlas	Definition	Manifolds and cell complexes
Erdős–Hajnal conjecture	Conjecture	Combinatorics
Countable additivity	Definition	Measure and integration
Matroid	Concept	Combinatorics
Happy ending problem	Problem	Convex and discrete geometry
Uniformly convex space	Definition	Functional analysis
Pivotal quantity	Concept	Statistics
Dahlberg's theorem on harmonic measure	Theorem	Potential theory
Normal function	Definition	Mathematical logic and foundations
Morley rank	Definition	Mathematical logic and foundations
Normal basis theorem	Theorem	Field theory and polynomials
Monoidal functor	Concept	Category theory; homological algebra
Dold–Kan correspondence	Theorem	Category theory; homological algebra
Reciprocal gamma function	Concept	Special functions
Universally catenary ring	Definition	Commutative algebra
Nekhoroshev estimates	Theorem	Dynamical systems and ergodic theory
Semiring of sets	Concept	Measure and integration
Boundary Harnack principle	Theorem	Potential theory
Total variation distance between probability measures	Definition	Probability theory and stochastic processes
Positive mass theorem	Theorem	Differential geometry
Finitely complete category	Concept	Category theory; homological algebra
Spinor bundle	Concept	Differential geometry
Hilbert space	Definition	Functional analysis
Projective algebra	Concept	General algebraic systems
Sporadic group	Concept	Group theory and generalizations
Convex independence	Definition	Convex and discrete geometry
Noncommutative torus	Example	Functional analysis
One-relator group	Definition	Group theory and generalizations
Systolic geometry	Concept	Differential geometry
Relational clone	Definition	General algebraic systems
Power of a test	Definition	Statistics
Locally presentable category	Concept	Category theory; homological algebra
Epimorphism	Definition	Category theory; homological algebra
Isomorphism	Concept	General algebraic systems
Quintuple product identity	Theorem	Number theory
Hörmander's condition	Definition	Partial differential equations
Sequent calculus	Definition	Mathematical logic and foundations
Lagrangian submanifold	Definition	Differential geometry
Holomorphic fiber bundle	Definition	Several complex variables and analytic spaces
Pullback	Concept	Category theory; homological algebra
Semiring	Definition	Associative rings and algebras
Schwartz impossibility theorem	Theorem	Functional analysis
Parametric model	Definition	Statistics
SL(2,R)	Example	Topological groups, Lie groups
Linear congruential generator	Concept	Numerical analysis
Category theory	Definition	Category theory; homological algebra
Error bound for the trapezoidal rule	Theorem	Numerical analysis
Planar ternary ring	Concept	Geometry
Pointed space	Definition	Algebraic topology
Discrete geometry	Concept	Convex and discrete geometry
Complemented subspace	Concept	Functional analysis
Spinor bundle	Definition	Differential geometry
Tridiagonal matrix	Definition	Linear and multilinear algebra; matrix theory
Stationary-action principle	Fact	Calculus of variations and optimal control; optimization
Intuitionistic logic	Concept	Mathematical logic and foundations
Energy functional on paths	Concept	Global analysis, analysis on manifolds
Shilnikov theorem	Theorem	Dynamical systems and ergodic theory
Wiener amalgam space	Definition	Harmonic analysis on Euclidean spaces
Kissing number problem in three dimensions	Theorem	Convex and discrete geometry
Information-based complexity	Concept	Numerical analysis
Category theory	Concept	Category theory; homological algebra
Hausdorff measure	Concept	Measure and integration
Khinchin integral	Concept	Real functions
Dual of Lp	Theorem	Functional analysis
Axiom of constructibility	Definition	Mathematical logic and foundations
Direct limit of algebras	Definition	General algebraic systems
Foundations of mathematics	Definition	Mathematical logic and foundations
Semi-local ring	Definition	Commutative algebra
Asymptotic analysis	Concept	Approximations and expansions
Duhamel's principle	Theorem	Ordinary differential equations
de Bruijn–Erdős theorem	Theorem	Geometry
Legendrian submanifold	Concept	Differential geometry
Fatou's theorem	Theorem	Functions of a complex variable
Domain theory	Concept	Order, lattices, ordered algebraic structures
Configuration	Concept	Combinatorics
Homogeneous coordinates	Definition	Geometry
Unary operation	Concept	General algebraic systems
Topology of uniform convergence	Definition	General topology
Incomparability theorem	Theorem	Commutative algebra
Householder's method	Theorem	Numerical analysis
Periodic sequence	Concept	Difference and functional equations
Integro-partial differential equation	Definition	Integral equations
Linear extension	Definition	Order, lattices, ordered algebraic structures
Graphical model	Concept	Statistics