(topology) A one-point union of a family of topological spaces.

plural of wedge sum

(mathematics) coproduct in some categories, like abelian groups, topological spaces or modules

plural of direct sum

(mathematics) The sum of the first n terms of an infinite series, where n is a finite number.

plural of partial sum

(mathematics, of a positive integer) The sum of all digits.

plural of lump sum

plural of sum of parts

Alternative form of sum of its parts / Used other than figuratively or idiomatically: see sum, of, parts.