Noun
monstrous moonshine (uncountable)
(mathematics) The unexpected connection between the Monster group and modular functions, now known to relate to a certain conformal field theory having the Monster group as symmetries.
Moonshine The Monster group is one of two principal constituents in the Monstrous moonshine conjecture by Conway and Norton, which relates discrete and non-discrete mathematics and was finally proved by Richard Borcherds in 1992. Source: Internet
Strominger, Yau, and Zaslow 1996 Monstrous moonshine main An equilateral triangle can be rotated through 120°, 240°, or 360°, or reflected in any of the three lines pictured without changing its shape. Source: Internet