Regular
The term regular can mean normal or obeying rules. Regular may refer to:
In organizations:
In mathematics, geometry, and statistics:
- Regular cardinal, a cardinal number that is equal to its cofinality
- Regular category, a kind of category that has similarities to both Abelian categories and to the category of sets
- Regular code, an algebraic code with a uniform distribution of distances between codewords
- Regular element (disambiguation), certain kinds of elements of an algebraic structure
- Regular graph, a graph such that all the degrees of the vertices are equal
- Regular language, a formal language recognizable by a finite state automaton
- Regular polygon, a polygon where all angles and all sides are equal
- Regular polyhedron, a 3-dimensional equivalent to a regular polygon
- Regular prime, a certain kind of prime number
- Regular representation of a group G, the linear representation afforded by the group action of G on itself
- Regular ring, a ring such that all its localizations have Krull dimension equal to the minimal number of generators of the maximal ideal
- Regular singular point in theory of ordinary differential equations where the growth of solutions is bounded by an algebraic function
- Regular space, a topological space in which a point and a closed set can be separated by neighbourhoods
- Regular surface in algebraic geometry
- Regularity, the degree of differentiability of a function
- Regularity conditions arise in the study of first class constraints in Hamiltonian mechanics
- Regularity of an elliptic operator
- Axiom of Regularity, also called the Axiom of Foundation, an axiom of set theory asserting the non-existence of certain infinite chains of sets
- Castelnuovo–Mumford regularity of a coherent sheaf
In medicine:
In other uses:
- Regular character, a main character who appears more frequently and/or prominently than a recurring character
- Regular expression, a type of pattern describing a set of strings in computer science
- Regular verb, a grammatical term for a verb with derived forms that are typical for the language
- Regular customer, a person who visits the same restaurant, pub, store, or transit provider frequently
See also