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We study families of partitions with gap conditions that were introduced by Schur and Andrews, and describe their fundamental connections to combinatorial q-series and automorphic forms. In particular, we show that the generating functions…

Number Theory · Mathematics 2013-07-09 Kathrin Bringmann , Karl Mahlburg

George Andrews and Ae Ja Yee recently established beautiful results involving bivariate generalizations of the third order mock theta functions $\omega(q)$ and $\nu(q)$, thereby extending their earlier results with the second author.…

Combinatorics · Mathematics 2021-01-29 Bruce C. Berndt , Atul Dixit , Rajat Gupta

Two integral representations of q-analogues of the Hurwitz zeta function are established. Each integral representation allows us to obtain an analytic continuation including also a full description of poles and special values at…

Number Theory · Mathematics 2012-12-07 Masato Wakayama , Yoshinori Yamasaki

In the present paper, a general theory for the second-order matrix difference equation of bilateral type is discussed. We introduced the matrix $q$-Kummer equation of bilateral type and presented the $q$-Kummer matrix function as a series…

General Mathematics · Mathematics 2023-08-08 Ravi Dwivedi

In this paper, we introduce $q$-analogues of the Barnes multiple zeta functions. We show that these functions can be extended meromorphically to the whole plane, and moreover, tend to the Barnes multiple zeta functions when $q\uparrow 1$…

Number Theory · Mathematics 2012-12-07 Yoshinori Yamasaki

In this paper, we study $q$-difference analogues of several central results in value distribution theory of several complex variables such as $q$-difference versions of the logarithmic derivative lemma, the second main theorem for…

Complex Variables · Mathematics 2020-11-25 Tingbin Cao , Risto Korhonen

We express a family of Hecke--Appell-type sums of Hikami and Lovejoy in terms of mixed mock modular forms; in particular, we express the sums in terms of Appell functions and theta functions. Hikami and Lovejoy's family of…

Number Theory · Mathematics 2023-03-06 Eric T. Mortenson , Sander Zwegers

In recent years, the generalized sum-of-divisor functions of MacMahon have been unified into the algebraic framework of $q$-multiple zeta values. In particular, these results link partition theory, quasimodular forms, $q$-multiple zeta…

Number Theory · Mathematics 2025-02-28 William Craig

Recently, Nath and Das investigated congruence properties for the second order mock theta function $B(q)$. In their paper, they asked for analytic proofs of three identities on the second order mock theta functions $A(q)$, $B(q)$ and…

Number Theory · Mathematics 2026-01-06 Xingyuan Cai , Eric H. Liu , Olivia X. M. Yao

In this paper, we obtain the meromorphic continuation of a q-analogue of multiple zeta function using an elementary formula called translation formula. We then obtain the matrix representation of the translation formula and using it, we…

Number Theory · Mathematics 2026-02-03 Nita Tamang , Pitu Sarkar

We consider the partial theta function $\theta (q,z):=\sum _{j=0}^{\infty}q^{j(j+1)/2}z^j$, where $(q,z)\in \mathbb{C}^2$, $|q|<1$. We show that for any $0<\delta _0<\delta <1$, there exists $n_0\in \mathbb{N}$ such that for any $q$ with…

Complex Variables · Mathematics 2019-05-10 Vladimir Petrov Kostov

We show that some $q$-series such as universal mock theta functions are linear sums of theta quotients and mock Jacobi forms of weight 1/2, which become holomorphic parts of real analytic modular forms when they are restricted to torsion…

Number Theory · Mathematics 2014-01-14 Soon-Yi Kang

In this paper, we use two $q$-operators $\mathbb{T}(a,b,c,d,e,yD_x)$ and $\mathbb{E}(a,b,c,d,e,y\theta_x)$ to derive two potentially useful generalizations of the $q$-binomial theorem, a set of two extensions of the $q$-Chu-Vandermonde…

Combinatorics · Mathematics 2020-11-03 Hari Mohan Srivastava , Jian Cao , Sama Arjika

In this paper, we establish a $q$-integral formula by using the orthogonality relation, and also provide a new proof of the $q$-orthogonality relation for the continuous $q$-ultraspherical polynomials. A new $q$-beta integral with five…

Classical Analysis and ODEs · Mathematics 2024-08-09 Dandan Chen , Zhiguo Liu

One discovers why the solution of generalized umbral calculus difference nonhomogeneous equation in the form recently proposed by the author extends here now to generalized appellian delta operator and corresponding polynomials case almost…

Combinatorics · Mathematics 2008-02-11 A. K. Kwasniewski

False theta functions are functions that are closely related to classical theta functions and mock theta functions. In this paper, we study their modular properties at all ranks by forming modular completions analogous to modular…

Number Theory · Mathematics 2022-06-29 Kathrin Bringmann , Jonas Kaszian , Antun Milas , Caner Nazaroglu

Recently, Andrews, Dixit and Yee defined two partition functions $p_{\omega}(n)$ and $p_{\nu}(n)$ that are related with Ramanujan's mock theta functions $\omega(q)$ and $\nu(q)$, respectively. In this paper, we present two variable…

Number Theory · Mathematics 2017-09-12 George E Andrews , Ae Ja Yee

In this paper, we give the values of a certain kind of $q$-multiple zeta functions at roots of unity. Various multiple zeta values have been proposed and studied by many researchers, but these multiple zeta values naturally arise from…

Number Theory · Mathematics 2025-05-15 Takao Komatsu

The bilateral series corresponding to many of the third-, fifth-, sixth- and eighth order mock theta functions may be derived as special cases of $_2\psi_2$ series \[ \sum_{n=-\infty}^{\infty}\frac{(a,c;q)_n}{(b,d;q)_n}z^n. \] Three…

Number Theory · Mathematics 2019-07-01 James Mc Laughlin

Caputo q-fractional derivatives are introduced and studied. A Caputo -type q-fractional initial value problem is solved and its solution is expressed by means of a new introduced q-Mittag-Leffler function. Some open problems about…

Dynamical Systems · Mathematics 2015-05-27 Thabet Abdeljawad , Dumitru Baleanu