We determine the exceptional sets of hypergeometric functions corresponding to the (2, 4, 6) triangle group by relating them to values of certain quaternionic modular forms at CM points. We prove a result on the number fields generated by exceptional values, and by using modular polynomials we explicitly compute some examples.
机构:
Tsinghua Univ, Yanqi Lake Beijing Inst Math Sci & Applicat, Beijing 101408, Peoples R China
Tsinghua Univ, Yau Math Sci Ctr, Beijing 101408, Peoples R ChinaTsinghua Univ, Yanqi Lake Beijing Inst Math Sci & Applicat, Beijing 101408, Peoples R China
Wang, Weijia
Zhang, Hao
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机构:
Hunan Univ, Sch Math, Changsha 410082, Peoples R ChinaTsinghua Univ, Yanqi Lake Beijing Inst Math Sci & Applicat, Beijing 101408, Peoples R China
机构:
Chinese Acad Tradit Chinese Med, Acad Math & Syst Sci, Inst Math, Beijing 10080, Peoples R ChinaChinese Acad Tradit Chinese Med, Acad Math & Syst Sci, Inst Math, Beijing 10080, Peoples R China
机构:
Penn State Univ, Dept Math, University Pk, PA 16802 USA
Max Planck Inst Math, Vivatsgasse 7, D-53111 Bonn, GermanyPenn State Univ, Dept Math, University Pk, PA 16802 USA