Calabi-yau threefolds of type K (II): Mirror symmetry

Kenji Hashimoto, Atsushi Kanazawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A Calabi-Yau threefold is called of type K if it admits an étale Galois covering by the product of a K3 surface and an elliptic curve. In our previous paper [15], based on Oguiso-Sakurai's fundamental work [23], we have provided the full classification of Calabi- Yau threefolds of type K and have studied some basic properties thereof. In the present paper, we continue the study, investigating them from the viewpoint of mirror symmetry. It is shown that mirror symmetry relies on duality of certain sublattices in the second cohomology of the K3 surface appearing in the minimal splitting covering. The duality may be thought of as a version of the lattice duality of the anti-symplectic involution on K3 surfaces discovered by Nikulin [22]. Based on the duality, we obtain several results parallel to what is known for Borcea-Voisin threefolds. Along the way, we also investigate the Brauer groups of Calabi-Yau threefolds of type K.

Original languageEnglish
Pages (from-to)157-192
Number of pages36
JournalCommunications in Number Theory and Physics
Issue number2
Publication statusPublished - 2016
Externally publishedYes

ASJC Scopus subject areas

  • Algebra and Number Theory
  • Mathematical Physics
  • General Physics and Astronomy


Dive into the research topics of 'Calabi-yau threefolds of type K (II): Mirror symmetry'. Together they form a unique fingerprint.

Cite this