Superconformal algebras and mock theta functions 2: Rademacher expansion for K3 surface

Tohru Eguchi, Kazuhiro Hikami

Research output: Contribution to journalArticle

25 Citations (Scopus)


The elliptic genera of the K3 surfaces, both compact and noncompact cases, are studied by using the theory of mock theta functions. We decompose the elliptic genus in terms of the N = 4 superconformal characters at level-1, and present an exact formula for the coefficients of the massive (non-BPS) representations using Poincaŕe-Maass series.

Original languageEnglish
Pages (from-to)531-554
Number of pages24
JournalCommunications in Number Theory and Physics
Issue number3
Publication statusPublished - Sep 2009


All Science Journal Classification (ASJC) codes

  • Algebra and Number Theory
  • Mathematical Physics
  • Physics and Astronomy(all)

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