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 451–600 of 2778.
| Name | Kind | Subject |
|---|---|---|
| Arccosine | Concept | Special functions |
| Improper multiple integral | Concept | Real functions |
| Integrating factor for a non-exact equation | Concept | Ordinary differential equations |
| Martingale | Concept | Probability theory and stochastic processes |
| Geometric sequence | Concept | Sequences, series, summability |
| Order isomorphism | Concept | Order, lattices, ordered algebraic structures |
| Convergents of a continued fraction | Concept | Number theory |
| Probability mass function | Concept | Probability theory and stochastic processes |
| Power series in the complex plane | Concept | Functions of a complex variable |
| Binary tree | Concept | Combinatorics |
| Construction of the reals from Cauchy sequences | Concept | Real functions |
| Straightedge and compass construction | Concept | Geometry |
| Euler's totient function | Concept | Number theory |
| Probability axioms | Concept | Probability theory and stochastic processes |
| Torsion subgroup | Concept | Group theory and generalizations |
| Harmonic function | Concept | Potential theory |
| Conjugacy class | Concept | Group theory and generalizations |
| Alternating bilinear form | Concept | Linear and multilinear algebra; matrix theory |
| Quadratic residue | Concept | Number theory |
| Correlation coefficient | Concept | Statistics |
| Slope field | Concept | Ordinary differential equations |
| Well-founded relation | Concept | Mathematical logic and foundations |
| Joint probability distribution | Concept | Statistics |
| Fundamental system of solutions | Concept | Ordinary differential equations |
| Definition by recursion | Concept | Mathematical logic and foundations |
| Transvection | Concept | Linear and multilinear algebra; matrix theory |
| Index of a subgroup | Concept | Group theory and generalizations |
| Linear span | Concept | Linear and multilinear algebra; matrix theory |
| Probability distribution | Concept | Probability theory and stochastic processes |
| Conjugate elements | Concept | Group theory and generalizations |
| Conjugate transpose | Concept | Linear and multilinear algebra; matrix theory |
| Centre of a group | Concept | Group theory and generalizations |
| Free module | Concept | Associative rings and algebras |
| Irrational number | Concept | Number theory |
| Laplacian | Concept | Partial differential equations |
| Square root function | Concept | Real functions |
| Differential form | Concept | Global analysis, analysis on manifolds |
| Polynomial of an endomorphism | Concept | Linear and multilinear algebra; matrix theory |
| Limit point | Concept | General topology |
| Directrix | Concept | Geometry |
| Casting out nines | Concept | Number theory |
| Similar matrices | Concept | Linear and multilinear algebra; matrix theory |
| Exponential distribution | Concept | Probability theory and stochastic processes |
| Ceiling function | Concept | Real functions |
| Division ring | Concept | Field theory and polynomials |
| Degree of a field extension | Concept | Field theory and polynomials |
| Trigonometric substitution | Concept | Real functions |
| Invertible matrix | Concept | Linear and multilinear algebra; matrix theory |
| Cardinal number | Concept | Mathematical logic and foundations |
| Probability-generating function | Concept | Probability theory and stochastic processes |
| Interval of convergence | Concept | Functions of a complex variable |
| Counterexample | Concept | General and overarching topics |
| Hamiltonian system | Concept | Dynamical systems and ergodic theory |
| Proof by infinite descent | Concept | Number theory |
| Primality test | Concept | Number theory |
| Formal derivative | Concept | Commutative algebra |
| Primitive root of unity | Concept | Number theory |
| Normal convergence | Concept | Sequences, series, summability |
| Chi-squared test | Concept | Statistics |
| Function | Concept | Mathematical logic and foundations |
| Constrained optimisation | Concept | Operations research, mathematical programming |
| Field extension | Concept | Field theory and polynomials |
| Induced subgraph | Concept | Combinatorics |
| Beta distribution | Concept | Probability theory and stochastic processes |
| Domain in the complex plane | Concept | Functions of a complex variable |
| Product of vector spaces | Concept | Linear and multilinear algebra; matrix theory |
| Set bounded above | Concept | Order, lattices, ordered algebraic structures |
| Subsequence | Concept | Sequences, series, summability |
| Field of fractions | Concept | Commutative algebra |
| Riemann integrable function | Concept | Real functions |
| Lyapunov stability | Concept | Ordinary differential equations |
| Iterated derivative | Concept | Real functions |
| Primitive root modulo n | Concept | Number theory |
| Mersenne prime | Concept | Number theory |
| Transition matrix | Concept | Probability theory and stochastic processes |
| Divisors of a natural number | Concept | Number theory |
| Quadratic integer | Concept | Number theory |
| Outcome | Concept | Probability theory and stochastic processes |
| Characteristic of a ring | Concept | Commutative algebra |
| Disjunction | Concept | Mathematical logic and foundations |
| Square root | Concept | Real functions |
| Graph isomorphism | Concept | Combinatorics |
| Convolution of probability distributions | Concept | Probability theory and stochastic processes |
| Double counting | Concept | Combinatorics |
| Circumcentre | Concept | Geometry |
| Absolutely convergent improper integral | Concept | Sequences, series, summability |
| Möbius function | Concept | Number theory |
| Local maximum | Concept | Real functions |
| Evaluation homomorphism | Concept | Commutative algebra |
| Reachability | Concept | Combinatorics |
| Locally compact space | Concept | General topology |
| Construction of the rationals as fractions | Concept | Commutative algebra |
| Absolute value | Concept | Real functions |
| Kurtosis | Concept | Statistics |
| Group of units of a monoid | Concept | Group theory and generalizations |
| Maximum degree | Concept | Combinatorics |
| Total derivative | Concept | Real functions |
| Even and odd functions | Concept | Real functions |
| Convergence of random variables | Concept | Probability theory and stochastic processes |
| Convex hull | Concept | Convex and discrete geometry |
| Maximum likelihood estimation | Concept | Statistics |
| Sequential compactness | Concept | General topology |
| Total order | Concept | Order, lattices, ordered algebraic structures |
| Complex conjugate | Concept | Functions of a complex variable |
| Choice function | Concept | Mathematical logic and foundations |
| Transposition | Concept | Group theory and generalizations |
| Initial value problem | Concept | Ordinary differential equations |
| Solvable group | Concept | Group theory and generalizations |
| Algebraic multiplicity | Concept | Linear and multilinear algebra; matrix theory |
| Order of quantifiers | Concept | Mathematical logic and foundations |
| Recurrence relation | Concept | Difference and functional equations |
| Cardinality | Concept | Mathematical logic and foundations |
| Eigenspace | Concept | Linear and multilinear algebra; matrix theory |
| Galton–Watson process | Concept | Probability theory and stochastic processes |
| Dedekind cut | Concept | Real functions |
| Markov chain | Concept | Probability theory and stochastic processes |
| Entire function | Concept | Functions of a complex variable |
| Parametrised curve | Concept | Differential geometry |
| Equivalence relation | Concept | Mathematical logic and foundations |
| Sequence | Concept | Sequences, series, summability |
| Product topology | Concept | General topology |
| Independence of two random variables | Concept | Probability theory and stochastic processes |
| Binomial coefficient | Concept | Combinatorics |
| Concave function | Concept | Real functions |
| Prüfer sequence | Concept | Combinatorics |
| Normal core | Concept | Group theory and generalizations |
| Subfield | Concept | Field theory and polynomials |
| Pointwise convergence | Concept | Sequences, series, summability |
| Bijective function | Concept | Mathematical logic and foundations |
| P-value | Concept | Statistics |
| Forest | Concept | Combinatorics |
| Universal quantifier | Concept | Mathematical logic and foundations |
| Angle at a point | Concept | Geometry |
| Transitive relation | Concept | Mathematical logic and foundations |
| Subring | Concept | Associative rings and algebras |
| Complete residue system | Concept | Number theory |
| Cauchy distribution | Concept | Probability theory and stochastic processes |
| Independence of random variables | Concept | Probability theory and stochastic processes |
| Wedge product of forms | Concept | Linear and multilinear algebra; matrix theory |
| Ideal generated by a subset | Concept | Commutative algebra |
| System of linear equations | Concept | Linear and multilinear algebra; matrix theory |
| Disjunctive normal form | Concept | Mathematical logic and foundations |
| One-point compactification | Concept | General topology |
| Area under a curve | Concept | Real functions |
| Telescoping series | Concept | Sequences, series, summability |
| Laurent series | Concept | Functions of a complex variable |
| Cayley graph | Concept | Combinatorics |
| Ascending chain condition | Concept | Order, lattices, ordered algebraic structures |
| Characteristic equation | Concept | Ordinary differential equations |
| Conjugate subgroup | Concept | Group theory and generalizations |