lattice-preserving map

noun
UK /ˈlæt.ɪs prɪˌzɜː.vɪŋ mæp/
US /ˈlæt.ɪs prɪˌzɝː.vɪŋ mæp/

A rule that keeps the order of things the same when you move them from one group to another.

In algebra class, we learned that a lattice-preserving map keeps the meet and join of any two elements intact.


OTHER MEANINGS

2. A function between two lattices that preserves both the meet and join operations.

The identity function on any lattice is a lattice-preserving map.

3. A structure-preserving mapping used in order theory to compare two partially ordered sets that are lattices.

Researchers used a lattice-preserving map to relate the two algebraic structures.

4. In computer science, a function that maintains the lattice structure of a data domain, often used in abstract interpretation.

The compiler's analysis relied on a lattice-preserving map to keep the abstract states consistent.