Every idea
- Concepts 7386
- Definitions 7188
- Statements 3950
- Conjectures 117
- Problems 256
- Examples 672
- Counterexamples 88
- Objects 168
- Proofs 11
- Computations 1
- Topics 1
Ideas 16801–16950 of 19838.
| Name | Kind | Subject |
|---|---|---|
| Murray–von Neumann equivalence | Definition | Functional analysis |
| Space form | Definition | Differential geometry |
| Discriminant of a field extension | Definition | Number theory |
| Hamburger moment problem | Problem | Integral transforms, operational calculus |
| Triebel–Lizorkin space | Concept | Functional analysis |
| Gibbard–Satterthwaite theorem | Theorem | Game theory, economics, finance, and other social and behavioral sciences |
| Krull's height theorem | Theorem | Commutative algebra |
| Levi-flat hypersurface | Definition | Several complex variables and analytic spaces |
| Crown | Example | Order, lattices, ordered algebraic structures |
| Wiener index | Concept | Combinatorics |
| Abraham–Lorentz force | Fact | Optics, electromagnetic theory |
| Cauchy's logarithmic equation | Definition | Difference and functional equations |
| Universal Turing machine | Object | Mathematical logic and foundations |
| Discrete Laplace operator | Definition | Difference and functional equations |
| f-divergence | Concept | Information and communication theory, circuits |
| Indirect utility function | Definition | Game theory, economics, finance, and other social and behavioral sciences |
| Foster's theorem on primal algebras | Theorem | General algebraic systems |
| Inequalities in information theory | Definition | Information and communication theory, circuits |
| Upper nilradical | Definition | Associative rings and algebras |
| Systolic geometry | Definition | Differential geometry |
| Cotangent space of a local ring | Definition | Commutative algebra |
| F-coalgebra | Definition | Category theory; homological algebra |
| Poisson kernel | Concept | Potential theory |
| Projection method for integral equations | Definition | Integral equations |
| Thermodynamic state | Concept | Classical thermodynamics, heat transfer |
| Mikusiński operational calculus | Concept | Integral transforms, operational calculus |
| Ehresmann connection | Concept | Differential geometry |
| Coupling | Definition | Probability theory and stochastic processes |
| Magnus expansion | Definition | Ordinary differential equations |
| Backward differentiation formula | Concept | Numerical analysis |
| Multiple integral | Definition | Real functions |
| Tietze transformations | Definition | Group theory and generalizations |
| Peixoto's theorem | Theorem | Dynamical systems and ergodic theory |
| Kingman's coalescent | Definition | Probability theory and stochastic processes |
| Microcanonical ensemble | Concept | Statistical mechanics, structure of matter |
| Hartle–Hawking state | Concept | Relativity and gravitational theory |
| Direct and inverse theorems of approximation | Concept | Approximations and expansions |
| Abel inversion formula | Theorem | Integral equations |
| Gamma matrices | Object | Linear and multilinear algebra; matrix theory |
| Extremal length | Definition | Functions of a complex variable |
| Polynomial hierarchy | Concept | Computer science |
| Stokeslet | Definition | Fluid mechanics |
| Kaplansky density theorem | Theorem | Functional analysis |
| Invertible ideal | Definition | Commutative algebra |
| Rainbow | Example | Optics, electromagnetic theory |
| Kodaira–Spencer map | Definition | Several complex variables and analytic spaces |
| Bessel function of the first kind | Definition | Special functions |
| Functional completeness | Concept | General algebraic systems |
| Tarski monster group | Object | Group theory and generalizations |
| Direct method in the calculus of variations | Concept | Calculus of variations and optimal control; optimization |
| Periodic point | Definition | Dynamical systems and ergodic theory |
| Geomagnetic secular variation | Definition | Geophysics |
| Hirzebruch signature theorem | Theorem | Manifolds and cell complexes |
| Hopf invariant | Concept | Algebraic topology |
| Lagrange polynomial | Definition | Approximations and expansions |
| Resolvent | Definition | Operator theory |
| Finite ring | Definition | Associative rings and algebras |
| Aleph number | Definition | Mathematical logic and foundations |
| Rauch–Tung–Striebel smoother | Definition | Systems theory; control |
| Bertrand's theorem | Theorem | Mechanics of particles and systems |
| Descriptive set theory | Concept | Mathematical logic and foundations |
| Exact category | Concept | Category theory; homological algebra |
| Uniform approximation | Definition | Approximations and expansions |
| Pivotal quantity | Definition | Statistics |
| Constitutive relations of electromagnetism | Definition | Optics, electromagnetic theory |
| Envy-freeness | Definition | Game theory, economics, finance, and other social and behavioral sciences |
| Lie sphere geometry | Concept | Geometry |
| Capacity of a set | Definition | Potential theory |
| Chemical reaction network theory | Definition | Biology and other natural sciences |
| Banach algebra | Definition | Functional analysis |
| Geometric realization | Concept | Algebraic topology |
| Lie algebroid | Definition | Differential geometry |
| Cyclic coordinate | Concept | Mechanics of particles and systems |
| Register machine | Concept | Computer science |
| K0 of a C*-algebra | Definition | Functional analysis |
| Global spherical shell conjecture | Conjecture | Several complex variables and analytic spaces |
| ℓ-adic cohomology | Definition | Algebraic geometry |
| Blotto game | Example | Game theory, economics, finance, and other social and behavioral sciences |
| Chevalley's theorem on constructible sets | Theorem | Algebraic geometry |
| Join-prime element | Definition | Order, lattices, ordered algebraic structures |
| Down-closure | Definition | Order, lattices, ordered algebraic structures |
| Newton's minimal resistance problem | Problem | Calculus of variations and optimal control; optimization |
| Block design | Definition | Combinatorics |
| Residually small variety | Concept | General algebraic systems |
| Integro-partial differential equation | Concept | Integral equations |
| Levenberg–Marquardt algorithm | Proposition | Numerical analysis |
| Proof theory | Definition | Mathematical logic and foundations |
| Resistance form | Concept | Potential theory |
| Hartogs domain | Concept | Several complex variables and analytic spaces |
| Nusselt number | Concept | Classical thermodynamics, heat transfer |
| Generalized linear model | Definition | Statistics |
| Natural proofs barrier | Theorem | Computer science |
| Structure formation | Definition | Astronomy and astrophysics |
| Lensmaker's equation | Proposition | Optics, electromagnetic theory |
| Free category | Concept | Category theory; homological algebra |
| Differential game | Concept | Game theory, economics, finance, and other social and behavioral sciences |
| Siu's semicontinuity theorem | Theorem | Several complex variables and analytic spaces |
| Spectral triple | Definition | Global analysis, analysis on manifolds |
| Central force | Definition | Mechanics of particles and systems |
| Paley–Wiener theorem | Theorem | Functions of a complex variable |
| Random graph | Definition | Combinatorics |
| Equation of state of seawater | Definition | Geophysics |
| Group scheme | Concept | Algebraic geometry |
| Normal form | Concept | Ordinary differential equations |
| The alternating group is the kernel of the sign | Example | Group theory and generalizations |
| Gravitational redshift | Proposition | Relativity and gravitational theory |
| Rayleigh wave | Definition | Mechanics of deformable solids |
| Discrete Fourier transform | Definition | Numerical analysis |
| Nyquist plot | Definition | Systems theory; control |
| F-plane | Definition | Fluid mechanics |
| Dimer model | Example | Statistical mechanics, structure of matter |
| Finitely presented group | Concept | Group theory and generalizations |
| Ore condition | Concept | Associative rings and algebras |
| Catastrophic cancellation | Concept | Numerical analysis |
| Hahn series | Definition | Commutative algebra |
| Ellipsoid method | Concept | Operations research, mathematical programming |
| Differential game | Definition | Game theory, economics, finance, and other social and behavioral sciences |
| T-duality | Definition | Quantum theory |
| Lichnerowicz–Obata eigenvalue theorem | Theorem | Global analysis, analysis on manifolds |
| Einstein radius | Definition | Astronomy and astrophysics |
| Equation of state in cosmology | Definition | Relativity and gravitational theory |
| Hyperreal number | Definition | Real functions |
| Chladni figures | Example | Mechanics of deformable solids |
| Analytic continuation in several variables | Definition | Several complex variables and analytic spaces |
| Holomorphic vector bundle | Concept | Several complex variables and analytic spaces |
| Integral transforms of tempered distributions | Definition | Functional analysis |
| Kerr effect | Definition | Optics, electromagnetic theory |
| Filtered category | Definition | Category theory; homological algebra |
| Bell's spaceship paradox | Problem | Relativity and gravitational theory |
| Cluster algebra | Concept | Commutative algebra |
| Calculus of constructions | Concept | Mathematical logic and foundations |
| Nonharmonic Fourier series | Concept | Harmonic analysis on Euclidean spaces |
| Flow-shop scheduling | Problem | Operations research, mathematical programming |
| 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 |