English edit

Etymology edit

Unknown. Perhaps a blend of ball +‎ Boolean.

Noun edit

ballean (plural balleans)

  1. (mathematics) The asymptotical counterpart of a ball (inside surface of a sphere)
    • 2016, I.V. Protasov, K.D. Protasova, “The comb-like representations of cellular ordinal balleans”, in arXiv[1]:
      We show that each cellular ordinal ballean can be represented as a  comb.

Anagrams edit