English Discrete fixed-point theorem Cited by user Erel Segal on 09 Mar 2020 In discrete mathematics, a discrete fixed-point theorem is a fixed-point theorem for functions defined on finite sets, typically subsets of the integer grid.
English Integrally-convex set Cited by user Erel Segal on 09 Mar 2020 An integrally-convex set is the discrete geometry analogue of the concept of convex set in geometry.
English Direction-preserving function Cited by user Erel Segal on 06 Mar 2020 In discrete mathematics, a direction-preserving function (or mapping) is a function on a discrete space, such as the integer grid, that (informally) does not change too…