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Kurokawa, Nobushige
- Milnor’s Multiple Gamma Functions
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Authors
Affiliations
1 Department of Mathematics, Tokyo Institute of Technology, Oh-Okayama Meguro, Tokyo-152-0033, JP
2 Department of Mathematics, Nagoya University, Chikusa, Nagoya-464-8602, JP
3 Kyushu University, Hakozaki Fukuoka-812-8581, JP
1 Department of Mathematics, Tokyo Institute of Technology, Oh-Okayama Meguro, Tokyo-152-0033, JP
2 Department of Mathematics, Nagoya University, Chikusa, Nagoya-464-8602, JP
3 Kyushu University, Hakozaki Fukuoka-812-8581, JP
Source
Journal of the Ramanujan Mathematical Society, Vol 21, No 2 (2006), Pagination: 153-167Abstract
We study basic properties of Milnor’s multiple gamma functions. Moreover, we introduce new multiple sine functions from these Milnor’s functions and show the difficult special values of the Dirichlet L-functions can be expressed by these functions.- Monoidal Absolute Derivations for Non-Commutative Rings
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Authors
Affiliations
1 Department of Mathematics, Tokyo Institute of Technology, Oh-Okayama, Tokyo 152-8551, JP
2 Department of Mathematics, Nagoya University, Chikusa, Nagoya 464-8602, JP
1 Department of Mathematics, Tokyo Institute of Technology, Oh-Okayama, Tokyo 152-8551, JP
2 Department of Mathematics, Nagoya University, Chikusa, Nagoya 464-8602, JP
Source
Journal of the Ramanujan Mathematical Society, Vol 19, No 4 (2004), Pagination: 261-265Abstract
We show the structure theorem of the monoidal absolute derivations of the matrix algebra over a commutative ring. In particular, those over the ring of rational integers are inner.- Certain Series Related to the Triple Sine Function
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Authors
Affiliations
1 2-5-27, Hayabuchi, Tsuzuki-Ku, Yokohama 224-0025, JP
2 Department of Mathematics, Tokyo Institute of Technology, Oh-Okayama, Meguro-Ku, Tokyo 152-8551, JP
1 2-5-27, Hayabuchi, Tsuzuki-Ku, Yokohama 224-0025, JP
2 Department of Mathematics, Tokyo Institute of Technology, Oh-Okayama, Meguro-Ku, Tokyo 152-8551, JP
Source
Journal of the Ramanujan Mathematical Society, Vol 19, No 3 (2004), Pagination: 161-166Abstract
We compute special values of Dirichlet series whose coefficients are given by the inverse of certain binomial coefficients via the triple sine function.- Mutliple Trigonometry and Zeta Functions
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Authors
Affiliations
1 Department of Mathematics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, JP
2 Graduate School of Mathematics, Kyushu University, Fukuoka 812-8581, JP
1 Department of Mathematics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, JP
2 Graduate School of Mathematics, Kyushu University, Fukuoka 812-8581, JP
Source
Journal of the Ramanujan Mathematical Society, Vol 17, No 2 (2002), Pagination: 101-113Abstract
The purpose of this paper is to express the value of the Riemann zeta function at the positive odd integers in terms of the multiple sine functions. We also study the multiple trigonometric functions including the multiple cosine functions. Especially, we derive the algebraic differential equation satisfied by the multiple trigonometric functions.- Kronecker’s Jugendtraum and Ring Sine Functions
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Authors
Affiliations
1 Department of Mathematics, Tokyo Institute of Technology, Meguro, Tokyo-152-8551, JP
2 Graduate School of Mathematics, Kyushu University, Fukuoka-812-8581, JP
1 Department of Mathematics, Tokyo Institute of Technology, Meguro, Tokyo-152-8551, JP
2 Graduate School of Mathematics, Kyushu University, Fukuoka-812-8581, JP
Source
Journal of the Ramanujan Mathematical Society, Vol 17, No 3 (2002), Pagination: 211–220Abstract
We present the notion of the sine function of a ring, and we calculate some examples. This contains the case of the rational integer ring and the case of the imaginary quadratic integer rings. These results indicate such a sine function of a ring would be a good candidate to the aforementioned special function for the Kronecker’s Jugendtraum.- On ζ(3)
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Authors
Affiliations
1 Department of Mathematics, Tokyo Institute of Technology, Meguro Tokyo, 152-0033, JP
2 Faculty of Mathematics, Kyushu University, Hakozaki, Fukuoka, 812-8581, JP
1 Department of Mathematics, Tokyo Institute of Technology, Meguro Tokyo, 152-0033, JP
2 Faculty of Mathematics, Kyushu University, Hakozaki, Fukuoka, 812-8581, JP