Every idea

Ideas 3451–3600 of 7806.

Name	Kind	Subject
Regular cardinal	Concept	Mathematical logic and foundations
Rate function	Concept	Probability theory and stochastic processes
Euler–Boole summation	Concept	Numerical analysis
Laplace's method	Definition	Approximations and expansions
Sphere spectrum	Object	Algebraic topology
VC dimension	Definition	Combinatorics
Huisken's theorem on convex hypersurfaces	Theorem	Differential geometry
Hales–Jewett theorem	Theorem	Combinatorics
Ryll-Nardzewski theorem	Theorem	Mathematical logic and foundations
Schatten class	Concept	Operator theory
Nakayama's lemma	Lemma	Commutative algebra
Piecewise linear manifold	Concept	Manifolds and cell complexes
Filter	Concept	General topology
Proper map	Concept	General topology
Abel–Ruffini theorem	Theorem	Field theory and polynomials
Strongly minimal theory	Definition	Mathematical logic and foundations
Ideal quotient	Concept	Commutative algebra
Lambert series	Definition	Functions of a complex variable
Tensor product of algebras	Concept	Commutative algebra
Liénard's theorem	Theorem	Ordinary differential equations
Finitely additive measure	Definition	Measure and integration
Vector measure	Definition	Measure and integration
Warsaw circle	Example	General topology
Kolmogorov complexity	Definition	Computer science
Spectral theorem for unbounded self-adjoint operators	Theorem	Operator theory
Resolvent set	Definition	Operator theory
Univalent function	Definition	Functions of a complex variable
Random matrix	Definition	Linear and multilinear algebra; matrix theory
Lebesgue point	Concept	Measure and integration
Link	Concept	Manifolds and cell complexes
n-connected space	Concept	Algebraic topology
Artin approximation theorem	Theorem	Commutative algebra
Riesz projector	Definition	Operator theory
Wagner's theorem	Theorem	Combinatorics
Krull dimension	Definition	Commutative algebra
Differential inclusion	Definition	Ordinary differential equations
Banach–Alaoglu theorem	Theorem	Functional analysis
Knot concordance	Concept	Manifolds and cell complexes
Tate cohomology	Concept	Group theory and generalizations
Graph of an operator	Definition	Operator theory
Dirichlet's unit theorem	Theorem	Number theory
Real projective space	Object	Manifolds and cell complexes
Long line	Counterexample	General topology
Weak topology	Definition	Functional analysis
Ehrenfeucht–Fraïssé game	Definition	Mathematical logic and foundations
Malliavin calculus	Concept	Probability theory and stochastic processes
Nevanlinna theory	Concept	Functions of a complex variable
Integral element	Concept	Commutative algebra
Eckmann–Hilton duality	Concept	Algebraic topology
Hybrid system	Concept	Ordinary differential equations
Padé approximant	Concept	Approximations and expansions
Equivariant cohomology	Definition	Algebraic topology
CAT(k) space	Concept	Differential geometry
Tutte polynomial	Definition	Combinatorics
Polynomial function	Concept	Real functions
Approximate point spectrum	Definition	Operator theory
Spectrum	Concept	Algebraic topology
Spin(7)-manifold	Concept	Differential geometry
Model theory	Definition	Mathematical logic and foundations
Non-Archimedean absolute value	Concept	Field theory and polynomials
Congruence subgroup	Concept	Number theory
Permutation pattern	Concept	Combinatorics
Incidence algebra	Concept	Order, lattices, ordered algebraic structures
Regular local rings are UFDs	Theorem	Commutative algebra
Universal bundle	Concept	Algebraic topology
Boundary value problem	Definition	Ordinary differential equations
Logical consequence	Concept	Mathematical logic and foundations
Random matrix	Concept	Linear and multilinear algebra; matrix theory
Giroux correspondence	Theorem	Manifolds and cell complexes
Twelvefold way	Concept	Combinatorics
Feedback linearization	Concept	Systems theory; control
Semifield	Definition	Field theory and polynomials
Categorical theory	Concept	Mathematical logic and foundations
Elliptic cohomology	Definition	Algebraic topology
Hopf bifurcation	Definition	Ordinary differential equations
Handle decomposition	Definition	Manifolds and cell complexes
Transcritical bifurcation	Definition	Ordinary differential equations
Proximity space	Definition	General topology
Cylindric algebra	Concept	Mathematical logic and foundations
Hilbert system	Concept	Mathematical logic and foundations
Finite morphism of rings	Concept	Commutative algebra
Prenex normal form	Definition	Mathematical logic and foundations
Compactness theorem	Theorem	Mathematical logic and foundations
Radon–Nikodym derivative	Concept	Measure and integration
Initial topology	Concept	General topology
Levin-type transformations	Concept	Numerical analysis
Stone–Weierstrass theorem	Theorem	Functional analysis
Pettis measurability theorem	Theorem	Measure and integration
Mahler measure	Definition	Number theory
Non-measurable set	Definition	Measure and integration
Proof complexity	Concept	Mathematical logic and foundations
Krull intersection theorem	Theorem	Commutative algebra
Dual graph	Concept	Combinatorics
Non-standard model of arithmetic	Example	Mathematical logic and foundations
Riemannian metric	Definition	Differential geometry
Weakly compact cardinal	Concept	Mathematical logic and foundations
Associated prime	Definition	Commutative algebra
Post's problem	Problem	Mathematical logic and foundations
Symmetric spectrum	Concept	Algebraic topology
Arakelyan's theorem	Theorem	Functions of a complex variable
Robinson–Schensted correspondence	Theorem	Combinatorics
Cap set problem	Theorem	Combinatorics
Locally path-connected space	Definition	General topology
Kirkman's schoolgirl problem	Problem	Combinatorics
Zeros and poles	Concept	Functions of a complex variable
Fock space	Object	Functional analysis
Hochster's homological conjectures	Conjecture	Commutative algebra
Unknot	Example	Manifolds and cell complexes
Minkowski bound	Theorem	Number theory
Clarkson's inequalities	Theorem	Functional analysis
Commutant	Concept	Functional analysis
Brouwer–Heyting–Kolmogorov interpretation	Definition	Mathematical logic and foundations
Space form	Concept	Differential geometry
Representation theory of the symmetric group	Concept	Group theory and generalizations
Dynamic equation on time scales	Definition	Ordinary differential equations
Queueing theory	Definition	Probability theory and stochastic processes
Jacobson ring	Definition	Commutative algebra
Sectional curvature	Concept	Differential geometry
Koszul complex	Definition	Commutative algebra
Riemann zeta function	Concept	Number theory
O-minimal theory	Definition	Mathematical logic and foundations
Lebesgue's theorem on differentiability of monotone functions	Theorem	Real functions
Hodge star operator	Concept	Global analysis, analysis on manifolds
Loewner's torus inequality	Theorem	Differential geometry
Newton–Kantorovich theorem	Theorem	Numerical analysis
Lickorish–Wallace theorem	Theorem	Manifolds and cell complexes
Perfect graph	Concept	Combinatorics
Separably generated extension	Concept	Field theory and polynomials
Dedekind domain	Definition	Commutative algebra
Regular chain	Concept	Commutative algebra
Topological group structure of a vector space	Definition	Functional analysis
Characteristic of a field	Concept	Field theory and polynomials
Standard part function	Concept	Real functions
Radon–Nikodym theorem	Theorem	Measure and integration
Locally path-connected space	Concept	General topology
Berger's classification of holonomy groups	Theorem	Differential geometry
Self-similar measure	Definition	Measure and integration
Artinian ring	Concept	Commutative algebra
Paley–Zygmund inequality	Theorem	Probability theory and stochastic processes
Homotopy groups of spheres	Definition	Algebraic topology
Crossing number	Definition	Manifolds and cell complexes
Grothendieck's Galois theory	Definition	Field theory and polynomials
Elementary substructure	Definition	Mathematical logic and foundations
Zassenhaus lemma	Lemma	Group theory and generalizations
Heegner point	Concept	Number theory
Wiener process	Concept	Probability theory and stochastic processes
Hilbert–Samuel function	Definition	Commutative algebra
Complete measure	Concept	Measure and integration
Euler–Maruyama method	Concept	Numerical analysis
Gaussian process	Concept	Probability theory and stochastic processes