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Noun: surjection
  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