Integral Structure for Simple Singularities

• Published in: Symmetry, Integrability and Geometry: Methods and Applications
• Date: 2020
• Main Authors: Milanov, Todor, Zha, Chenghan
• Format: Article
• Language: English
• Published: Інститут математики НАН України 2020
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/210767
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Integral Structure for Simple Singularities. Todor Milanov and Chenghan Zha. SIGMA 16 (2020), 081, 28 pages

We compute the image of the Milnor lattice of an ADE singularity under a period map. We also prove that the Milnor latticecan be identified with an appropriate relative 𝛫-group defined through the Berglund-Hübsch dual of the corresponding singularity.