additive mapping
A mathematical term for a mapping that preserves addition. Used in algebra and related fields.
A linear mapping is a type of additive mapping.
線形写像 (linear mapping) is a more specific concept that also preserves scalar multiplication, while 加法的写像 only requires preservation of addition.
Compound of 加法的 (additive) + 写像 (mapping). A direct calque from English 'additive mapping'.