Nodes at W0, stub

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

Ideas 6601–6750 of 8415.

Name	Kind	Subject
Space-filling curve	Example	General topology
Abstract data type as an algebra	Definition	Computer science
Gentzen's consistency proof	Theorem	Mathematical logic and foundations
Method of matched asymptotic expansions	Concept	Ordinary differential equations
Vojta's conjecture	Conjecture	Number theory
Fano plane	Object	Geometry
Lie group method for PDEs	Concept	Partial differential equations
Schreier refinement theorem	Theorem	Group theory and generalizations
Discrete subgroup	Definition	Topological groups, Lie groups
Nilradical	Concept	Commutative algebra
Alexander horned sphere	Counterexample	Manifolds and cell complexes
Counting measure	Example	Measure and integration
Topological manifold	Concept	Manifolds and cell complexes
Dunford–Pettis property	Concept	Functional analysis
Absolutely monotonic function	Concept	Real functions
Triangulation	Definition	Manifolds and cell complexes
Condition number	Definition	Linear and multilinear algebra; matrix theory
Gaussian process	Definition	Probability theory and stochastic processes
Horn clause	Concept	Mathematical logic and foundations
Tamari lattice	Example	Order, lattices, ordered algebraic structures
Lyapunov exponent	Definition	Ordinary differential equations
Fractional differential equation	Definition	Ordinary differential equations
Logical connective	Concept	Mathematical logic and foundations
Haken manifold	Definition	Manifolds and cell complexes
Packing measure	Definition	Measure and integration
Singular values of a compact operator	Concept	Operator theory
The symmetric group S3 is not abelian	Example	Group theory and generalizations
Join	Definition	General topology
Valuation ring	Concept	Commutative algebra
Shimura variety	Concept	Algebraic geometry
Seifert surface	Definition	Manifolds and cell complexes
Categorical theory	Definition	Mathematical logic and foundations
Fixed-point property of posets	Definition	Order, lattices, ordered algebraic structures
Basis of a matroid	Concept	Combinatorics
Lattice of equational theories	Definition	General algebraic systems
Pontryagin duality theorem	Theorem	Abstract harmonic analysis
Idempotence	Definition	General algebraic systems
Cheeger–Gromoll splitting theorem	Theorem	Differential geometry
Lebesgue–Stieltjes measure	Concept	Measure and integration
Mahler measure	Concept	Number theory
MV-algebra	Definition	Order, lattices, ordered algebraic structures
Galois representation	Definition	Number theory
Lawson topology	Definition	Order, lattices, ordered algebraic structures
Sanov's theorem	Theorem	Probability theory and stochastic processes
Cayley–Abels graph	Concept	Topological groups, Lie groups
Lorentz group	Example	Topological groups, Lie groups
Nonemptiness of the spectrum	Theorem	Functional analysis
Quasi-primal algebra	Concept	General algebraic systems
Normal family	Definition	Functions of a complex variable
Solvability of x^n - a	Proposition	Field theory and polynomials
Modular lattice	Concept	Order, lattices, ordered algebraic structures
Topological semigroup	Concept	Topological groups, Lie groups
Determinacy	Concept	Mathematical logic and foundations
Castelnuovo's rationality criterion	Theorem	Algebraic geometry
Open subgroup	Concept	Topological groups, Lie groups
Wild knot	Counterexample	Manifolds and cell complexes
Knot	Concept	Manifolds and cell complexes
Pringsheim convergence	Concept	Sequences, series, summability
Tate's thesis	Concept	Number theory
Tits alternative	Theorem	Group theory and generalizations
Spin structure	Definition	Differential geometry
Spectral space	Definition	General topology
Locally presentable category	Definition	Category theory; homological algebra
Wynn's epsilon algorithm	Definition	Numerical analysis
Cohomological dimension of a field	Concept	Field theory and polynomials
Valuative criterion	Theorem	Algebraic geometry
Hilbert's syzygy theorem	Theorem	Commutative algebra
Ising model	Example	Statistical mechanics, structure of matter
Smooth morphism	Definition	Algebraic geometry
Reduced scheme	Definition	Algebraic geometry
Representation theory of the Lorentz group	Example	Topological groups, Lie groups
Derivation	Definition	Commutative algebra
Artin–Wedderburn theorem	Theorem	Associative rings and algebras
Urysohn universal space	Object	General topology
Marcinkiewicz interpolation theorem	Theorem	Functional analysis
Filtered algebra	Concept	Associative rings and algebras
Simplicial homology	Definition	Algebraic topology
3-manifold	Concept	Manifolds and cell complexes
Prevariety	Definition	General algebraic systems
Brauer character	Concept	Group theory and generalizations
Picard's little theorem	Theorem	Functions of a complex variable
Smooth structure	Concept	Manifolds and cell complexes
Liouville's theorems on elliptic functions	Theorem	Special functions
Galois connection between subgroups and subfields	Concept	Field theory and polynomials
Fréchet–Urysohn space	Concept	General topology
Semilocally simply connected space	Concept	Manifolds and cell complexes
Hurwitz-stable matrix	Definition	Linear and multilinear algebra; matrix theory
Transport equation	Definition	Partial differential equations
Aitken's delta-squared process	Definition	Numerical analysis
Bruck–Ryser–Chowla theorem	Theorem	Combinatorics
Sturm's theorem	Theorem	Field theory and polynomials
Projective resolution	Definition	Commutative algebra
Gelfand–Levitan theory	Concept	Ordinary differential equations
Cauchy–Riemann operator	Definition	Several complex variables and analytic spaces
Normal scheme	Definition	Algebraic geometry
Permanent	Definition	Linear and multilinear algebra; matrix theory
Euler's pentagonal number theorem	Theorem	Number theory
Stochastic ordering	Definition	Probability theory and stochastic processes
Contractible space	Concept	Algebraic topology
Hecke character	Concept	Number theory
The natural numbers under addition are not a group	Example	Group theory and generalizations
Dual pair	Concept	Functional analysis
n-skeleton	Definition	Manifolds and cell complexes
Unimodular matrix	Concept	Linear and multilinear algebra; matrix theory
Clifford–Klein form	Concept	Manifolds and cell complexes
Initial algebra	Concept	Category theory; homological algebra
Ruzsa triangle inequality	Theorem	Number theory
Borel subgroup	Definition	Group theory and generalizations
Localization of a space	Definition	Algebraic topology
Unital magma	Definition	Group theory and generalizations
Ordered semigroup	Definition	Order, lattices, ordered algebraic structures
Abelian variety	Concept	Algebraic geometry
Willmore energy	Concept	Differential geometry
Liouvillian function	Definition	Field theory and polynomials
Cylinder set measure	Definition	Measure and integration
Self-similar measure	Concept	Measure and integration
Hasse–Minkowski theorem	Theorem	Number theory
Frobenius theorem on Cesàro and Abel summability	Theorem	Sequences, series, summability
Linking number	Definition	Manifolds and cell complexes
Cardinal characteristics of the continuum	Definition	Mathematical logic and foundations
Calderón problem	Problem	Partial differential equations
Univalent function	Concept	Functions of a complex variable
Thue–Siegel–Roth theorem	Theorem	Number theory
Isometry of Riemannian manifolds	Concept	Differential geometry
Friedberg–Muchnik theorem	Theorem	Mathematical logic and foundations
Topological monoid	Concept	Topological groups, Lie groups
Width of a poset	Concept	Order, lattices, ordered algebraic structures
Weyl's inequality	Theorem	Linear and multilinear algebra; matrix theory
Monad in nonstandard topology	Concept	General topology
Almost everywhere	Concept	Measure and integration
Volterra's function	Counterexample	Real functions
Unramified morphism of rings	Definition	Commutative algebra
Self-similar process	Concept	Probability theory and stochastic processes
Dugundji extension theorem	Theorem	General topology
Bimodule	Definition	Associative rings and algebras
Wasserstein metric	Definition	Calculus of variations and optimal control; optimization
Golod–Shafarevich theorem	Theorem	Associative rings and algebras
Mori domain	Definition	Commutative algebra
Semilinear PDE	Concept	Partial differential equations
Tarski's high school algebra problem	Problem	General algebraic systems
Order topology	Concept	General topology
Post algebra	Concept	Order, lattices, ordered algebraic structures
Morita equivalence	Concept	Associative rings and algebras
Iterated exponentiation	Example	Sequences, series, summability
Projection-valued measure	Definition	Operator theory
Self-avoiding walk	Definition	Statistical mechanics, structure of matter
Way-below relation	Concept	Order, lattices, ordered algebraic structures
Semiprimary ring	Definition	Associative rings and algebras
Relation algebra	Definition	Mathematical logic and foundations
Cohomology ring	Concept	Algebraic topology