Quantum modularity of partial theta series with periodic coefficients

被引:9
作者
Goswami, Ankush [2 ]
Osburn, Robert [1 ]
机构
[1] Univ Coll Dublin, Sch Math & Stat, Dublin 4, Ireland
[2] Johannes Kepler Univ Linz, Res Inst Symbol Computat RISC, A-4040 Linz, Austria
基金
奥地利科学基金会;
关键词
Quantum modular forms; partial theta series; periodic functions; Kontsevich-Zagier series; torus knots; INVARIANTS; FORMS;
D O I
10.1515/forum-2020-0201
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We explicitly prove the quantum modularity of partial theta series with even or odd periodic coefficients. As an application, we show that the Kontsevich-Zagier series F-t (q) which matches (at a root of unity) the colored Jones polynomial for the family of torus knots T(3, 2(t)), t >= 2, is a weight 3/2 quantum modular form. This generalizes Zagier's result on the quantum modularity for the "strange" series F(q).
引用
收藏
页码:451 / 463
页数:13
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