umbral moonshine

noun

A mysterious connection between Niemeier lattices and Ramanujan's mock theta functions; a generalization of the Mathieu moonshine phenomenon connecting representations of the Mathieu group M24 with K3 surfaces.

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Meanings

nounumbral moonshine (uncountable)
  1. uncountablemathematicsA mysterious connection between Niemeier lattices and Ramanujan's mock theta functions; a generalization of the Mathieu moonshine phenomenon connecting representations of the Mathieu group M24 with K3 surfaces.
Cite this entry
APA

umbral moonshine. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/umbral%20moonshine

MLA

“umbral moonshine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/umbral%20moonshine. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “umbral moonshine,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/umbral%20moonshine.

Source: umbral moonshine on Wiktionary, CC BY-SA 4.0.