Concepts

A mathematical idea. It can have more than one definition.

Ideas 601–750 of 2778.

Name	Kind	Subject
Fundamental matrix	Concept	Ordinary differential equations
Hyperbolic sine	Concept	Special functions
Semidirect product	Concept	Group theory and generalizations
Line integral of a vector field	Concept	Real functions
Gamma function	Concept	Special functions
Algebraic element	Concept	Field theory and polynomials
Del operator	Concept	Real functions
Scalar potential	Concept	Real functions
Cumulative distribution function	Concept	Probability theory and stochastic processes
Rectifiable curve	Concept	Real functions
Zermelo–Fraenkel set theory	Concept	Mathematical logic and foundations
Hamiltonian cycle	Concept	Combinatorics
Rotation	Concept	Geometry
Sum of a series	Concept	Sequences, series, summability
Differentiable function of several variables	Concept	Real functions
Discrete logarithm	Concept	Number theory
Random experiment	Concept	Probability theory and stochastic processes
Distributive lattice	Concept	Order, lattices, ordered algebraic structures
Order on the natural numbers	Concept	Mathematical logic and foundations
Centre of mass	Concept	Real functions
Coefficient matrix	Concept	Linear and multilinear algebra; matrix theory
Reduced residue system	Concept	Number theory
Eccentricity	Concept	Geometry
Polar form of a quadratic form	Concept	Linear and multilinear algebra; matrix theory
Student's t-test	Concept	Statistics
Norm of a Gaussian integer	Concept	Number theory
Hamiltonian graph	Concept	Combinatorics
Pivot	Concept	Linear and multilinear algebra; matrix theory
Exponential function	Concept	Special functions
Proof by contradiction	Concept	General and overarching topics
Fixed field	Concept	Field theory and polynomials
Euclidean isometry	Concept	Geometry
Inverse function	Concept	Mathematical logic and foundations
Cycle type	Concept	Group theory and generalizations
Characteristic polynomial of a linear map	Concept	Linear and multilinear algebra; matrix theory
Riemann sphere	Concept	Functions of a complex variable
Endomorphism	Concept	Linear and multilinear algebra; matrix theory
Limit of a function of several variables	Concept	Real functions
Riemann sum	Concept	Real functions
Euler method	Concept	Numerical analysis
Graph of a function	Concept	Mathematical logic and foundations
Stirling numbers of the second kind	Concept	Number theory
Continuity in R^n	Concept	Real functions
Affine map	Concept	Geometry
Connected component	Concept	Combinatorics
Presentation of a group	Concept	Group theory and generalizations
Exponential generating function	Concept	Combinatorics
Underdamped	Concept	Mechanics of particles and systems
Combinatorics	Concept	Combinatorics
Logical equivalence	Concept	Mathematical logic and foundations
Sum of subspaces	Concept	Linear and multilinear algebra; matrix theory
Kernel of a ring homomorphism	Concept	Associative rings and algebras
Universal set	Concept	Mathematical logic and foundations
Function of several variables	Concept	Real functions
Central binomial coefficient	Concept	Combinatorics
Bernstein polynomial	Concept	Approximations and expansions
Legendre symbol	Concept	Number theory
Integer partition	Concept	Combinatorics
Gaussian elimination	Concept	Linear and multilinear algebra; matrix theory
Split polynomial	Concept	Field theory and polynomials
Vector projection	Concept	Geometry
Saddle point	Concept	Real functions
Minimum spanning tree	Concept	Combinatorics
Divergent series	Concept	Sequences, series, summability
Bayesian inference	Concept	Statistics
Square matrix	Concept	Linear and multilinear algebra; matrix theory
Group homomorphism	Concept	Group theory and generalizations
Dihedral group	Concept	Group theory and generalizations
Upper and lower Darboux sums	Concept	Real functions
Automorphism group	Concept	Group theory and generalizations
Solving initial value problems with the Laplace transform	Concept	Integral transforms, operational calculus
Differentiable function	Concept	Real functions
Alternating multilinear map	Concept	Linear and multilinear algebra; matrix theory
Maclaurin series	Concept	Approximations and expansions
Associativity	Concept	General algebraic systems
Removable discontinuity	Concept	Real functions
Lower central series	Concept	Group theory and generalizations
Ramsey number	Concept	Combinatorics
Upper and lower Darboux integrals	Concept	Real functions
Characteristic subgroup	Concept	Group theory and generalizations
Covariance	Concept	Probability theory and stochastic processes
Reduced word	Concept	Group theory and generalizations
Bernoulli number	Concept	Number theory
Wronskian	Concept	Ordinary differential equations
Idempotent matrix	Concept	Linear and multilinear algebra; matrix theory
Basis	Concept	Linear and multilinear algebra; matrix theory
Venn diagram	Concept	Mathematical logic and foundations
Directed graph	Concept	Combinatorics
Posterior probability	Concept	Statistics
Affine combination	Concept	Geometry
Ring isomorphism	Concept	Associative rings and algebras
Restriction of an endomorphism to an invariant subspace	Concept	Linear and multilinear algebra; matrix theory
Homogeneous linear equation	Concept	Ordinary differential equations
Stationary distribution	Concept	Probability theory and stochastic processes
Continuity at a point	Concept	General topology
Symmetric bilinear form associated with a quadratic form	Concept	Linear and multilinear algebra; matrix theory
Degree of a vertex	Concept	Combinatorics
Equivalence relation induced by a function	Concept	Mathematical logic and foundations
Jordan measure	Concept	Measure and integration
Free group	Concept	Group theory and generalizations
Cyclic group	Concept	Group theory and generalizations
Diameter of a set	Concept	General topology
Connected graph	Concept	Combinatorics
Positive definite matrix	Concept	Linear and multilinear algebra; matrix theory
Number of prime factors counted with multiplicity	Concept	Number theory
Splitting field	Concept	Field theory and polynomials
Stirling numbers of the first kind	Concept	Number theory
Quotient group	Concept	Group theory and generalizations
Trace of a linear map	Concept	Linear and multilinear algebra; matrix theory
Diffeomorphism	Concept	Global analysis, analysis on manifolds
Antisymmetric relation	Concept	Mathematical logic and foundations
Analytic continuation	Concept	Functions of a complex variable
Binary operation	Concept	General algebraic systems
Uniform continuity	Concept	Real functions
Pythagorean triple	Concept	Number theory
Complementary subspaces	Concept	Linear and multilinear algebra; matrix theory
Equivalent norms	Concept	Functional analysis
Incentre	Concept	Geometry
Sum of ideals	Concept	Commutative algebra
Generators of a group	Concept	Group theory and generalizations
Complement graph	Concept	Combinatorics
Exterior algebra	Concept	Linear and multilinear algebra; matrix theory
Symmetric difference	Concept	Mathematical logic and foundations
Norm induced by an inner product	Concept	Functional analysis
Matching	Concept	Combinatorics
Change of basis matrix	Concept	Linear and multilinear algebra; matrix theory
Algebraic number	Concept	Number theory
Line	Concept	Geometry
Normal matrix	Concept	Linear and multilinear algebra; matrix theory
Existential quantifier	Concept	Mathematical logic and foundations
Order on the reals	Concept	Real functions
Poisson point process	Concept	Probability theory and stochastic processes
Divergence	Concept	Real functions
Deficient number	Concept	Number theory
Perfect number	Concept	Number theory
Marginal distribution	Concept	Statistics
Power series	Concept	Functions of a complex variable
Radius of convergence	Concept	Functions of a complex variable
Cumulant generating function	Concept	Probability theory and stochastic processes
Quotient map	Concept	Linear and multilinear algebra; matrix theory
Upper triangular matrix	Concept	Linear and multilinear algebra; matrix theory
Cross product	Concept	Linear and multilinear algebra; matrix theory
Idempotent element	Concept	Associative rings and algebras
Fermat primality test	Concept	Number theory
Simple extension	Concept	Field theory and polynomials
Eigenvector	Concept	Linear and multilinear algebra; matrix theory
Monoid	Concept	Group theory and generalizations
Classification of equilibria of planar linear systems	Concept	Ordinary differential equations
Kronecker product	Concept	Linear and multilinear algebra; matrix theory
Equilibrium point	Concept	Ordinary differential equations