Refereed Papers
On q-Analogues of the Dirichlet Series, Tokyo Metropolitan University (1994).
Books
On a p-adic interpolation of the generalized Euler numbers and its applications(in Japanese), RIMS Kokyuroku 589 (1986), pp. 94-104.
On a q-analogue of the Dirichlet series (in Japanese), RIMS Kokyuroku 844 (1993), pp. 50-57.
On Demjanenko's matrix for imaginary abelian number fields (in Japanese), RIMS Kokyuroku 971 (1996), pp. 125-133.
Functional relations for various multiple zeta-functions, RIMS Kokyuroku 1512 (2006), pp. 179-190 (with K. Matsumoto).
On functional relations between the Mordell-Tornheim double zeta functions
and the Riemann zeta function and their $\chi$-analogues (in Japanese), RIMS Kokyuroku 1549 (2007), pp. 122-137
On generalized multiple Dirichlet series and generalized multiple polylogarithms (in Japanese), RIMS Kokyuroku 1549 (2007), pp. 145-152 (with K. Matsumoto).
Certain double series of Euler type and of Eisenstein type and Hurwitz numbers, RIMS Kokyuroku 1639 (2009), pp. 104-122 (with Y. Komori and K. Matsumoto).
On multiple Bernoulli polynomials and multiple $L$-functions of root systems, RIMS Kokyuroku 1665 (2009), pp. 114-126 (with Y. Komori and K. Matsumoto).
Multiple Bernoulli polynomials and multiple zeta-functions of root systems, RIMS Kokyuroku 1689 (2010), pp. 117-132 (with Y. Komori and K. Matsumoto).
Zeta-functions of root systems and multiple zeta values (in Japanese), RIMS Kokyuroku 1813 (2012), pp. 89-108 (with Y. Komori and K. Matsumoto).
Mean value theorems for double zeta-functions, RIMS Kokyuroku 1874 (2014), pp. 45-54 (with K. Matsumoto).
On multiple zeta values of level two (in Japanese), RIMS Kokyuroku 2131 (2019), 14pp. (with M. Kaneko).
On Witten multiple zeta-functions associated with semisimple Lie algebras III, arXiv:math/0907.0955 (with Y. Komori and K. Matsumoto).
On Witten multiple zeta-functions associated with semisimple Lie algebras IV, arXiv:math/0907.0972 (with Y. Komori and K. Matsumoto).
Shuffle products for multiple zeta values and partial fraction decompositions of zeta-functions of root systems, arXiv:math/0908.0670 (with Y. Komori and K. Matsumoto).
Barnes multiple zeta-functions, Ramanujan's formula, and relevant series involving hyperbolic functions, arXiv:math/1006.3336 (with Y. Komori and K. Matsumoto).
Hyperbolic-sine analogues of Eisenstein series, generalized Hurwitz numbers, and $q$-zeta functions, arXiv:math/1006.3339 (with Y. Komori and K. Matsumoto).
Zeta-functions of weight lattices of compact connected semisimple Lie groups, arXiv:math/1011.0323 (with Y. Komori and K. Matsumoto).
Sum formulas for double polylogarithms with a shifting parameter and their derivatives, arXiv:math/1110.3493 (with K. Matsumoto).
Functional relations for zeta-functions of weight lattices of Lie groups of type A_3, arXiv:math/1202.0874 (with Y. Komori and K. Matsumoto).
Mean value theorems for the double zeta-function, arXiv:math/1203.2242 (with K. Matsumoto).
A study on multiple zeta values from the viewpoint of zeta-functions of root systems, arXiv:math/1205.0182 (with Y. Komori and K. Matsumoto).
On Witten multiple zeta-functions associated with semisimple Lie algebras V, arXiv:math/1302.4285 (with Y. Komori and K. Matsumoto).
Desingularization of complex multiple zeta-functions, fundamentals of $p$-adic multiple $L$-functions, and evaluation of their special values, arXiv:math/1309.3982 (with H. Furusho, Y. Komori and K. Matsumoto) [→ This article is divided into arXiv/1508.06920 and arXiv/1508.07185].
Desingularization of multiple zeta-functions of generalized Hurwitz-Lerch type and evaluation of p-adic multiple L-functions at arbitrary integers, arXiv:math/1404.4758 (with H. Furusho, Y. Komori and K. Matsumoto).
Lattice sums of hyperplane arrangements, arXiv:math/1408.1801 (with Y. Komori and K. Matsumoto).
Multi-poly-Bernoulli numbers and related zeta functions,arXiv:math/1503.02156 (with M. Kaneko).
On multiple series of Eisenstein type, arXiv:math/1505.04040 (with H. Bachmann).
Desingularization of complex multiple zeta-functions, arXiv:math/1508.06920 (with H. Furusho, Y. Komori and K. Matsumoto).
Fundamentals of p-adic multiple L-functions, and evaluation of their special values, arXiv:math/1508.07185 (with H. Furusho, Y. Komori and K. Matsumoto).
On a duality formula for certain sums of values of poly-Bernoulli polynomials and its application, arXiv:math/1604.00622 (with M. Kaneko and F. Sakurai).
On Arakawa-Kaneko zeta-functions associated with GL_2(C) and their functional relations, arXiv:math/1604.05533 (with Y. Komori).
Zeta-functions of root systems and Poincar\'e polynomials of Weyl groups, arXiv:math/1707.09719 (with Y. Komori and K. Matsumoto).
Double Dirichlet series associated with arithmetic functions, arXiv:math/1801.04444 (with K. Matsumoto and A. Nawashiro).
An overview and supplements to the theory of functional relations for zeta-functions of root systems, arXiv:math/1809.01815 (with Y. Komori and K. Matsumoto).
Zeta functions connecting multiple zeta values and poly-Bernoulli numbers, arXiv:math/1811.07736 (with M. Kaneko).
On a variant of multiple zeta values of level two, arXiv:math/1903.03747 (with M. Kaneko).
On poly-cosecant numbers, arXiv:math/1907.13441 (with M. Kaneko and M. Pallewatta).
Double Dirichlet series associated with arithmetic functions II, arXiv:math/2208.05149 (with K. Matsumoto).
Multiple L-values of level four, poly-Euler numbers, and related zeta functions, arXiv:math/2208.05146 (with M. Kaneko).
Two formulas for certain double and multiple polylogarithms in two variables, arXiv:math/2401.03213 (with M. Kaneko).