divisor

noun — 6 senses

divisor

noun

UK /dɪˈvaɪ.zə(ɹ)/ · US /dɪˈvaɪ.zɚ/

1

Arithmetic In an expression involving division, the number by which another number is being divided.

  • In "42 ÷ 3" the divisor is the 3.
2

An integer that divides another integer an integral number of times, the former being called a divisor of the latter.

  • 10 is a divisor of 100, but not of 101.
  • The positive divisors of 6 are 1, 2, 3 and 6.
3

Algebra, Mathematics, Sciences Broadly A ring element which can be multiplied (by some other ring element) to yield a third ring element, the first being called a divisor of the third. If the ring is noncommutative, then one specifies whether a divisor is left, right, or two-sided.

› Any of several kinds of formal object…

4

Algebraic geometry, Geometry, Mathematics, Sciences An element of the free abelian group on the points of the space.

In the study of Riemann surfaces

5

Algebraic geometry, Geometry, Mathematics, Sciences A Weil divisor: an element of the free abelian group on the codimension-1 subvarieties (or subschemes).

On a variety (or integral locally Noetherian scheme)

6

Algebraic geometry, Geometry, Mathematics, Sciences A Cartier divisor; see Cartier divisors on Wikipedia.Wikipedia

On a variety (or integral Noetherian scheme)

Derived terms
divisor function, divisorial, greatest common divisor, nondivisor, proper divisor, zero divisor
Related terms
successor, + =, + +... =, − =, × =, × ×... =, ÷ =, Or sometimes, =, √ =, log(base) =

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.