Concepts
A mathematical idea. It can have more than one definition.
- Concepts 2778
- Definitions 2634
- Statements 1926
- Conjectures 38
- Problems 54
- Examples 213
- Counterexamples 52
- Objects 99
- Proofs 10
- Computations 1
- Topics 1
Ideas 151–300 of 2778.
| Name | Kind | Subject |
|---|---|---|
| Real sequence | Concept | Sequences, series, summability |
| Coordinate vector | Concept | Linear and multilinear algebra; matrix theory |
| Modular exponentiation | Concept | Number theory |
| Natural logarithm | Concept | Special functions |
| Separation axioms | Concept | General topology |
| Divisor function | Concept | Number theory |
| Homogeneous system of linear equations | Concept | Linear and multilinear algebra; matrix theory |
| Clique number | Concept | Combinatorics |
| Continued fraction | Concept | Number theory |
| Geometric distribution | Concept | Probability theory and stochastic processes |
| Classification of discontinuities | Concept | Real functions |
| Parabola | Concept | Geometry |
| Higher derivative | Concept | Real functions |
| Definite integral | Concept | Real functions |
| Continued fraction expansion of a real number | Concept | Number theory |
| Random walk | Concept | Probability theory and stochastic processes |
| Determinant as signed volume | Concept | Linear and multilinear algebra; matrix theory |
| Elementary row operations | Concept | Linear and multilinear algebra; matrix theory |
| Tautology | Concept | Mathematical logic and foundations |
| Harmonic conjugate | Concept | Potential theory |
| Symmetric group | Concept | Group theory and generalizations |
| Classical definition of probability | Concept | Probability theory and stochastic processes |
| Graph homomorphism | Concept | Combinatorics |
| Converse relation | Concept | Mathematical logic and foundations |
| Sesquilinear form | Concept | Linear and multilinear algebra; matrix theory |
| Perpendicular bisector | Concept | Geometry |
| Sequential continuity | Concept | Real functions |
| Probability measure | Concept | Probability theory and stochastic processes |
| Partition of an interval | Concept | Real functions |
| Normal distribution | Concept | Probability theory and stochastic processes |
| Binary relation | Concept | Mathematical logic and foundations |
| Tangent function | Concept | Special functions |
| Determinant of a family of vectors in a basis | Concept | Linear and multilinear algebra; matrix theory |
| Boundary | Concept | General topology |
| Dihedral angle | Concept | Geometry |
| Transitive closure | Concept | Mathematical logic and foundations |
| Improper integral | Concept | Real functions |
| Limit of a sequence | Concept | Sequences, series, summability |
| Field generated by adjoining elements | Concept | Field theory and polynomials |
| Eulerian trail | Concept | Combinatorics |
| Mean squared error | Concept | Statistics |
| Finitely generated module | Concept | Commutative algebra |
| Truth table | Concept | Mathematical logic and foundations |
| Permutation | Concept | Combinatorics |
| Left inverse | Concept | Mathematical logic and foundations |
| Phase plane | Concept | Ordinary differential equations |
| Submodule | Concept | Associative rings and algebras |
| Inverse trigonometric functions | Concept | Special functions |
| Number of derangements | Concept | Combinatorics |
| Set difference | Concept | Mathematical logic and foundations |
| Isolated singularity | Concept | Functions of a complex variable |
| Circle | Concept | Geometry |
| Carmichael number | Concept | Number theory |
| Symmetric relation | Concept | Mathematical logic and foundations |
| Tree | Concept | Combinatorics |
| Nilpotent endomorphism | Concept | Linear and multilinear algebra; matrix theory |
| Coprime ideals | Concept | Commutative algebra |
| Surface integral | Concept | Real functions |
| Area of a triangle | Concept | Geometry |
| Pole | Concept | Functions of a complex variable |
| Noetherian ring | Concept | Commutative algebra |
| Flow of a vector field | Concept | Dynamical systems and ergodic theory |
| Autonomous system | Concept | Ordinary differential equations |
| Scalar matrix | Concept | Linear and multilinear algebra; matrix theory |
| Hessian matrix | Concept | Real functions |
| Triple integral | Concept | Real functions |
| Row space | Concept | Linear and multilinear algebra; matrix theory |
| Reflection | Concept | Linear and multilinear algebra; matrix theory |
| Fréchet derivative | Concept | Functional analysis |
| Operator norm | Concept | Operator theory |
| Banach space | Concept | Functional analysis |
| Linear map of a matrix | Concept | Linear and multilinear algebra; matrix theory |
| Multiplication of natural numbers | Concept | Mathematical logic and foundations |
| Real and imaginary parts | Concept | Functions of a complex variable |
| Directional derivative | Concept | Real functions |
| Inflection point | Concept | Real functions |
| Solution of a linear recurrence | Concept | Difference and functional equations |
| Fermat prime | Concept | Number theory |
| P-group | Concept | Group theory and generalizations |
| Completion of a metric space | Concept | General topology |
| Sum of divisors | Concept | Number theory |
| Rayleigh quotient | Concept | Linear and multilinear algebra; matrix theory |
| Contour integral | Concept | Functions of a complex variable |
| Argument of a complex number | Concept | Functions of a complex variable |
| Finite set | Concept | Mathematical logic and foundations |
| Maximal element | Concept | Order, lattices, ordered algebraic structures |
| Comparison of topologies | Concept | General topology |
| Tangent plane and normal vector of a surface | Concept | Differential geometry |
| Order of a pole | Concept | Functions of a complex variable |
| Separable equation | Concept | Ordinary differential equations |
| Gaussian integer | Concept | Number theory |
| Nilpotent matrix | Concept | Linear and multilinear algebra; matrix theory |
| Group of units of a ring | Concept | Associative rings and algebras |
| Incircle | Concept | Geometry |
| Integrating factor | Concept | Ordinary differential equations |
| Newton's method | Concept | Numerical analysis |
| Signature of a quadratic form | Concept | Linear and multilinear algebra; matrix theory |
| Complex exponential | Concept | Special functions |
| Polynomials in several variables | Concept | Commutative algebra |
| Convex function on R^n | Concept | Real functions |
| Order on the integers | Concept | Order, lattices, ordered algebraic structures |
| Dual space | Concept | Linear and multilinear algebra; matrix theory |
| Linear first-order equation | Concept | Ordinary differential equations |
| Liouville function | Concept | Number theory |
| Picard operator | Concept | Ordinary differential equations |
| Jordan block | Concept | Linear and multilinear algebra; matrix theory |
| Convex function | Concept | Real functions |
| Uniform continuity on a set | Concept | Real functions |
| Divisibility in a commutative ring | Concept | Commutative algebra |
| Equation of a plane | Concept | Geometry |
| T0 space | Concept | General topology |
| Linear isometry | Concept | Linear and multilinear algebra; matrix theory |
| Diagonalisable matrix | Concept | Linear and multilinear algebra; matrix theory |
| Trajectory | Concept | Dynamical systems and ergodic theory |
| Solution of an ordinary differential equation | Concept | Ordinary differential equations |
| Adjugate matrix | Concept | Linear and multilinear algebra; matrix theory |
| Inverse Laplace transform | Concept | Integral transforms, operational calculus |
| Identity element | Concept | General algebraic systems |
| Algebra of limits | Concept | Sequences, series, summability |
| Image of a set | Concept | Mathematical logic and foundations |
| Median | Concept | Probability theory and stochastic processes |
| Linear form | Concept | Linear and multilinear algebra; matrix theory |
| Phase line | Concept | Ordinary differential equations |
| Analytic function | Concept | Real functions |
| Finitely generated group | Concept | Group theory and generalizations |
| Abelian group | Concept | Group theory and generalizations |
| Walk | Concept | Combinatorics |
| Predicate logic | Concept | Mathematical logic and foundations |
| Statistical hypothesis test | Concept | Statistics |
| Translation | Concept | Geometry |
| Spanning set | Concept | Linear and multilinear algebra; matrix theory |
| Cyclic subgroup generated by an element | Concept | Group theory and generalizations |
| Moment of inertia | Concept | Real functions |
| Independent set | Concept | Combinatorics |
| Diophantine equation | Concept | Number theory |
| Adjacency matrix | Concept | Combinatorics |
| Floor function | Concept | Real functions |
| Cyclotomic polynomial | Concept | Number theory |
| Group isomorphism | Concept | Group theory and generalizations |
| Partition of a set | Concept | Mathematical logic and foundations |
| Cesàro mean | Concept | Sequences, series, summability |
| Number of distinct prime factors | Concept | Number theory |
| Power series solution | Concept | Ordinary differential equations |
| Normal extension | Concept | Field theory and polynomials |
| Permutation matrix | Concept | Linear and multilinear algebra; matrix theory |
| Semisimple endomorphism | Concept | Linear and multilinear algebra; matrix theory |
| Uniform convergence | Concept | Sequences, series, summability |
| Sine and cosine | Concept | Special functions |
| Explicit and implicit differential equations | Concept | Ordinary differential equations |
| Square-free integer | Concept | Number theory |