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J-GLOBAL ID：202301002620462382   Update date: Oct. 12, 2025

Kachi Yasuyuki

カチ ヤスユキ | Kachi Yasuyuki
Affiliation and department：
The University of Aizu Division of Computer Science and Engineering

About The University of Aizu Division of Computer Science and Engineering


Job title： Professor
Homepage URL  (2)： https://u-aizu.ac.jp/research/faculty/detail?cd=90138 ,  https://u-aizu.ac.jp/research/faculty/detail?cd=90138&lng=en
Research field  (3)： Information security ,  Algebra ,  Algebra
Research keywords  (15)： Post-Quantum Cryptography ,  Fisher-Yates shuffle ,  random permutation ,  number theory ,  analytic number theory ,  zeta functions ,  functional identity ,  Bernoulli numbers ,  Bernoulli polynomial ,  Akiyama-Tanigawa polynomials ,  Multi-zeta Values ,  Stirling's formula ,  Sum formula of Granville-Zagier type ,  asymptotic formulas ,  generating function
Papers (15)：
  • Michael Cohen, Yasuyuki Kachi. Full and Partial Order Number Partitioning: Recurrence Relations and Their Analogy to Rhythmic Pattern Variety. Proceedings of the 6th International Conference on ICT Integration in Technical Education, co-hosted by the 3rd International Conference on Entertainment Technology and Management (ETLTC-ICETM2024), D. Roy and G. Fragulis, eds. 2024. AIP Conf. Proc. 3220
  • Jong-Yeon Park, Jang-Won Ju, Wonil Lee, Bo Gyeong Kang, Yasuyuki Kachi, Kouichi Sakurai. A statistical verification method of random permutations for hiding countermeasure against side-channel attacks. Journal of Information Security and Applications. 2024. 84. 103797. 1-16
  • Michael Cohen, Yasuyuki Kachi. Recurrence Relations Rhythm. MCM: Proc. Int. Congress on Mathematics and Computation in Music. 2024. Ed. by Thomas Noll, Mariana Montiel, Francisco Gómez, Omar Costa Hamido, José Luis Besada, and José Oliveira Martins. LNCS: Lecture Notes in Computer Science. Coimbra, Portugal: Springer, May 2024. 14639. 381-386
  • Yasuyuki Kachi, Pavlos Tzermias. A Formula for the Hurwitz Zeta Function, Riemann's Functional Equation and Certain Integral Representations. Tsukuba Journal of Mathematics. 2019. 42. 2. 309-334
  • Yasuyuki Kachi, Pavlos Tzermias. On the m-ary Partition Numbers. Algebra and Discrete Mathematics. 2015. 19. 1. 67-76
ｍore...
Books (2)：
  • Recent progress in arithmetic and algebraic geometry : Barrett Lecture Series Conference, April 25-27, 2002, University of Tennessee, Knoxville, Tennessee
    The American Mathematical Society 2005 ISBN:0821834010
  • Segre's reflexivity and an inductive characterization of hyperquadrics (Memoirs of the American Mathematical Society, Vol. 763)
    The American Mathematical Society 2002 ISBN:0821832255
Lectures and oral presentations  (8)：
  • From High School Math to Orthogonal Polynomials Appearing in Quantum Physics
    (Joint University of Aizu-Sofia University (Bulgaria) Summer School 2025)
  • Development and study of a new-gen biological Neural Oscillator
    (Nusa Putra Global Conference Japan Series 2025 2025)
  • Permutations, Integer sequences, and pseudo-random number generators
    (ETLTC-ICAIH 2025 2025)
  • Applying Lagrange Interpolation to Polynomial Expressions of Human-Computable Functions
    (SCIS2025 Symposium on Cryptography and Information Security 2025)
  • Stirling's Formula, Akiyama-Tanigawa Polynomials and the Riemann-Hurwitz Zeta Functions
    (Colloquium, Tokyo University of Science 2024)
ｍore...
Education (3)：
  • 1994 - 1997 The University of Tokyo Graduate School of Mathematical Sciences, Ph.D. program
  • 1992 - 1994 The University of Tokyo Graduate School of Mathematical Sciences, M.A. Program
  • 1988 - 1992 The University of Tokyo Faculty of Science Department of Mathematics
Work history (10)：
  • 2025/04 - 現在 The University of Aizu School of Computer Sience and Engineering Professor (tenured)
  • 2024/04 - 2025/03 The University of Aizu School of Computer Science and Engineering Senior Associate Professor (tenured)
  • 2021/04 - 2024/03 The University of Aizu School of Computer Science and Engineering Senior Associate Professor
  • 2006/08 - 2020/12 The University of Kansas Department of Mathematics Associate Professor
  • 2005/08 - 2006/07 The University of Kansas Department of Mathematics Assistant Professor
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Association Membership(s) (2)：
The American Mathematical Society ,  Mathematical Society of Japan
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