plural of additive function

(number theory) The subfield of number theory concerning the behaviour of sumsets (integer sets added to each other elementwise).

(mathematical analysis) countable additivity

(mathematical analysis) The following property of a measure: that the measure of a countable union of disjoint sets is equal to the sum of their measures.

plus sign

plural of addition sign

(chemistry) A form of polymerization in which copies of a monomer are repeatedly added to one end of an existing polymer

Synonym of Michael reaction

plural of Michael addition

(music) The practice of enlarging and revising the orchestration of an earlier work, usually a Baroque piece, to accommodate the larger contemporary orchestras and tastes of the time.