Hiroshi Sekigawa

Publication Activity (10 Years)

Years Active: 1997-2023
Publications (10 Years): 8

Top Topics

Frequency Spectrum

Multivariate Polynomials

Randomized Approximation

Fourier Transform

Top Venues

ACM Commun. Comput. Algebra

Publications

Hiroshi Sekigawa
An Approximation Algorithm for the Nearest Decomposable Polynomial in the Hamming Distance. ACM Commun. Comput. Algebra 57 (3) (2023)
Kazuki Kondo, Hiroshi Sekigawa
Robust computation methods for sparse interpolation of multivariate polynomials. ACM Commun. Comput. Algebra 53 (3) (2019)
Yosuke Sato, Hiroshi Sekigawa, Ryoya Fukasaku, Katsusuke Nabeshima
On Parametric Border Bases. MACIS (2019)
Dai Numahata, Hiroshi Sekigawa
Robust algorithms for sparse interpolation of multivariate polynomials. ACM Commun. Comput. Algebra 52 (4) (2018)
Yosuke Sato, Ryoya Fukasaku, Hiroshi Sekigawa
On Continuity of the Roots of a Parametric Zero Dimensional Multivariate Polynomial Ideal. ISSAC (2018)
Hiroshi Sekigawa
The nearest polynomial to multiple given polynomials with a given zero in the real case. Theor. Comput. Sci. 681 (2017)
Dai Numahata, Hiroshi Sekigawa
An algorithm for symbolic-numeric sparse interpolation of multivariate polynomials whose degree bounds are unknown. ACM Commun. Comput. Algebra 51 (1) (2017)
Yasuhito Kawano, Hiroshi Sekigawa
Quantum Fourier transform over symmetric groups - improved result. J. Symb. Comput. 75 (2016)
Yasuhito Kawano, Hiroshi Sekigawa
Quantum Fourier Transform over Symmetric Groups: Improved Result. ACM Commun. Comput. Algebra 48 (3/4) (2014)
Hiroshi Sekigawa
The nearest polynomial to multiple given polynomials with a given zero. SNC (2014)
Yasuhito Kawano, Hiroshi Sekigawa
Quantum fourier transform over symmetric groups. ISSAC (2013)
Hiroshi Sekigawa, Kiyoshi Shirayanagi
Maximal perturbation for preserving the number of solutions of a polynomial system. ACM Commun. Comput. Algebra 46 (3/4) (2012)
Hiroshi Sekigawa, Kiyoshi Shirayanagi
Isolated real zero of a real polynomial system under perturbation. ACM Commun. Comput. Algebra 45 (1/2) (2011)
Hiroshi Sekigawa
Computing the nearest polynomial with a zero in a given domain by using piecewise rational functions. J. Symb. Comput. 46 (12) (2011)
Hiroshi Sekigawa, Kiyoshi Shirayanagi
Solvability of bivariate polynomial systems under perturbation. ACM Commun. Comput. Algebra 44 (3/4) (2010)
Hiroshi Sekigawa
On real factors of real interval polynomials. J. Symb. Comput. 44 (7) (2009)
Hiroshi Sekigawa
A Sequence of Nearest Polynomials with Given Factors. ASCM (2009)
Kiyoshi Shirayanagi, Hiroshi Sekigawa
Reducing exact computations to obtain exact results based on stabilization techniques. SNC (2009)
Hiroki Nakayama, Hiroshi Sekigawa
Determining divisibility between polynomials with inexact coefficients. ACM Commun. Comput. Algebra 43 (3/4) (2009)
Yumi Nakajima, Yasuhito Kawano, Hiroshi Sekigawa, Masaki Nakanishi, Shigeru Yamashita, Yasuhiko Nakashima
Synthesis of quantum circuits for d-level systems by using cosine-sine decomposition. Quantum Inf. Comput. 9 (5&6) (2009)
Kiyoshi Shirayanagi, Hiroshi Sekigawa
A new method of reducing exact computations to obtain exact results. ACM Commun. Comput. Algebra 43 (3/4) (2009)
Hiroshi Sekigawa
The nearest polynomial with a zero in a given domain. Theor. Comput. Sci. 409 (2) (2008)
Kiyoshi Shirayanagi, Hiroshi Sekigawa
A new Gröbner basis conversion method based on stabilization techniques. Theor. Comput. Sci. 409 (2) (2008)
Yumi Nakajima, Yasuhito Kawano, Hiroshi Sekigawa
Efficient quantum circuits for approximating the Jones polynomial. Quantum Inf. Comput. 8 (5) (2008)
Hiroshi Sekigawa
The nearest polynomial with a zero in a given domain from a geometrical viewpoint. ISSAC (2008)
Hiroshi Sekigawa, Kiyoshi Shirayanagi
On the Location of Pseudozeros of a Complex Interval Polynomial. Math. Comput. Sci. 1 (2) (2007)
Hiroshi Sekigawa
The Nearest Real Polynomial with a Real Multiple Zero in a Given Real Interval. ASCM (2007)
Hiroshi Sekigawa
The nearest polynomial with a zero in a given domain. SNC (2007)
Hiroshi Sekigawa
On real factors of real interval polynomials. ISSAC (2007)
Pramook Khungurn, Hiroshi Sekigawa, Kiyoshi Shirayanagi
Minimum converging precision of the QR-factorization algorithm for real polynomial GCD. ISSAC (2007)
Hiroshi Sekigawa, Kiyoshi Shirayanagi
Locating real multiple zeros of a real interval polynomial. ISSAC (2006)
Yumi Nakajima, Yasuhito Kawano, Hiroshi Sekigawa
A new algorithm for producing quantum circuits using KAK decompositions. Quantum Inf. Comput. 6 (1) (2006)
Yasuhito Kawano, K. Kimura, Hiroshi Sekigawa, M. Noro, Kiyoshi Shirayanagi, M. Kitagawa, M. Ozawa
Existence of the Exact CNOT on a Quantum Computer with the Exchange Interaction. Quantum Inf. Process. 4 (2) (2005)
Hiroshi Sekigawa, Kenji Koyama
). Math. Comput. 68 (227) (1999)
Kenji Koyama, Yukio Tsuruoka, Hiroshi Sekigawa
= n. Math. Comput. 66 (218) (1997)