M. Hirose, T. Matsusaka, S. Seki, A discretization of the iterated integral expression of the multiple polylogarithm, preprint.
S. Seki, A proof of the extended double shuffle relation without using integrals, preprint.
T. Maesaka, S. Seki, T. Watanabe, Deriving two dualities simultaneously from a family of identities for multiple harmonic sums, preprint.
M. Kaneko, T. Matsusaka, S. Seki, On finite analogues of Euler's constant, preprint.
S. Seki, Regular primes, non-Wieferich primes, and finite multiple zeta values of level N, Integers 24 (2024), Paper No. A22, 14pp.
H. Kawamura, T. Maesaka, S. Seki, Multivariable connected sums and multiple polylogarithms, Res. Math. Sci. 9 (2022), 4.
M. Ono, K. Sakurada, S. Seki, A note on Fn-multiple zeta values, Commentarii mathematici Universitatis Sancti Pauli 69 (2021), 51–74.
W. Kai, M. Mimura, A. Munemasa, S. Seki, K. Yoshino, Constellations in prime elements of number fields, preprint.
M. Hirose, N. Sato, S. Seki, The connector for the double Ohno relation, Acta Arith. 201 (2021), 109–118.
M. Ono, S. Seki, S. Yamamoto, Truncated t-adic symmetric multiple zeta values and double shuffle relations, Res. Number Theory 7 (2021), 15.
H. Murahara, T. Onozuka, S. Seki, Bowman-Bradley type theorem for finite multiple zeta values in A2, Osaka J. Math., 57 (2020), 647–653.
S. Seki, S. Yamamoto, Ohno-type identities for multiple harmonic sums, J. Math. Soc. Japan 72 (2020), 673–686.
S. Seki, S. Yamamoto, A new proof of the duality of multiple zeta values and its generalizations, Int. J. of Number Theory, Vol. 15, No. 6 (2019), 1261–1265.
S. Seki, Valuations, arithmetic progressions, and prime numbers, Notes on Number Theory and Discrete Mathematics, Vol. 24, No. 4 (2018), 128–132.
S. Seki, The p-adic duality for the finite star-multiple polylogarithms, Tohoku Math. J. Vol. 71, No. 1 (2019), 111–122.
K. Sakugawa, S. Seki, Finite and étale polylogarithms, J. Number Theory 176 (2017), 279–301.
K. Sakugawa, S. Seki, On functional equations of finite multiple polylogarithms, J. Algebra 469 (2017), 323–357.
S. Seki, Congruences modulo 10^3 for Euler numbers, Ramanujan J. 40 (2016), no. 1, 201–205.