WordWeb Online

1. A mathematical function that is an onto mapping.
   "In fact, if we define a ρ-kernel as the kernel of any surjection of the two graphs of interest, then there are ρ-kernels whose maximum excess does not vanish.";
   - surjective function, onto function

Derived forms: surjections

Type of: function, map, mapping, mathematical function, single-valued function

Encyclopedia: Surjection