Researcher Directory | Aichi University of Education.


detailes

Suda Sho

  • Faculty:Department of Mathematics EducationPosition:Assistant Professor
  • Address:1 Hirosawa,Kariya-City,Aichi Pref.
  • TEL:FAX:
  • E-mail address:
  • Web site:
Modified:05/08/2019

Profile

Assigned Class

  • Natural Sciences

Research Field

  • Algebraic combinatorics
  • Keywords:Association scheme , Hadamard matrices , Extremal combinatorics

Current Subject

  • Algebraic combinatorics on complex unit sphere

  • Semidefinite programming and its application to extremal combinatorics

  • Reproducing kernel and Laplacian of graphs

Academic Background

Degree
  • Ph.D(Information and Science)

Research Career

Research Career
  • 2015 - , Aichi University of Education, Department of Mathematics Education, Assistant Professor
  • 2013 - 2015 , Aichi University of Education, Department of Mathematics Education, Lecturer
  • 2012 - 2013 , JSPS research fellow PD
  • 2011 - 2012 , Postdoctoral fellow, Graduate school of Information and Sciences, Tohoku University
  • 2010 - 2011 , JSPS research fellow PD
  • 2008 - 2010 , JSPS research fellow DC1

Research

Books, Articles, etc.

Articles
  • Gary Greaves, Sho Suda
    On the Smith normal form of a skew-symmetric D-optimal design of order $n\equiv 2\pmod{4}$
    J. Combin. Des., Wiley, 27(3):123-141, 2019
  • Hadi Kharaghani, Sho Suda
    Balancedly splittable Hadamard matrices
    Discrete Math., Elsevier, 342(2):546-561, 2019
  • Michio Seto, Sho Suda
    Gram matrices of reproducing kernel Hilbert spaces over graphs IV (Quadratic inequalities for graph Laplacians)
    Algebra i Analiz, St. Petersburg Department of Steklov Institute of Mathematics, 31(1):143-155, 2019
  • Hadi Kharaghani, Sho Suda
    Linked systems of symmetric group divisible designs of type II
    Des. Codes Cryptogr., Springer, 2019
  • Hadi Kharaghani, Sho Suda
    Unbiased orthogonal designs
    Des. Codes Cryptogr., Springer, 86:1573-1588, 2018
  • Kai Fender, Hadi Kharaghani, Sho Suda
    On a class of quaternary complex Hadamard matrices
    Discrete Math., Elsevier, 341(2):421-426, 2018
  • Hadi Kharaghani, Sho Suda
    Linked systems of symmetric group divisible designs
    J. Algebraic Combin., 47(2):319--343, 2018
  • Hadi Kharaghani and Sho Suda
    Non-commutative association schemes and their fusion association schemes
    Finite Fields Appl., Elsevier, 52:108--125, 2018
  • Hiroshi Nozaki, Sho Suda
    Complex spherical codes with three inner products
    Discrete Comput. Geom., Springer, 60(2):294-317, 2018
  • Mitsugu Hirasaka, Koji Momihara, Sho Suda
    A new approach to the excess problem of Hadamard matrices
    Algebraic Combinatorics, 1(5):697--722, 2018
  • Hadi Kharaghani, Sara Sasani, Sho Suda
    A strongly regular decomposition of the complete graph and its association scheme
    Finite Fields Appl., 48:356-370, 2017
  • Gary Greaves, Sho Suda
    Symmetric and skew-symmetric {0,±1}-matrices with large determinants
    J. Combin. Des., 25(11):507-522, 2017
  • Koji Momihara, Sho Suda
    Conference matrices with maximum excess and two-intersection sets
    Integers, 17:A 30, 2017
  • Koji Momihara, Sho Suda
    Upper bounds on the size of transitive subtournaments in digraphs
    Linear Algebra Appl., Elsevier, 530:230-247, 2017
  • Michio Seto, Sho Suda
    Gram matrices of reproducing kernel Hilbert spaces over graphs III (a dimension formula)
    Oper. Matrices, 11(3):759-768, 2017
  • Sho Suda, Hajime Tanaka, Norihide Tokushige
    A semidefinite programming approach to a cross-intersection problem with measures
    Math. Program., 166:113-130, 2017
  • Hadi Kharaghani, Sho Suda
    Hoffman's clique bound for normal regular digraphs, and nonsymmetric association schemes
    Mathematics Across Contemporary Sciences, Springer Proc. Math. Stat., 190:137-150, 2017
  • Makoto Araya, Masaaki Harada, Sho Suda
    Quasi-unbiased Hadamard matrices and weakly unbiased Hadamard matrices: a coding-theoretic approach
    Math. Comp., 86:951-984, 2017
  • Masaaki Harada, Sho Suda
    On binary codes related to mutually quasi-unbiased weighing matrices
    Australas. J. Combin., 66:10--22, 2016
  • Makoto Araya, Masaaki Harada, Sho Suda
    Supplementary difference sets related to a certain class of complex spherical 2-codes
    Australas. J. Combin., 65:71-83, 2016
  • Sho Suda
    A two-fold cover of strongly regular graphs with spreads and association schemes of class five
    Des. Codes Cryptogr., 78(no.2):463-471, 2016
  • Hadi Kharaghani, Sho Suda
    Symemtric Bush-type generalized Hadamard matrices and association schemes
    Finite Fields Appl., 37:72-84, 2016
  • Hiroshi Nozaki, Sho Suda
    Complex spherical codes with two inner products
    European J. Combin., 51:511-518, 2016
  • Michio Seto, Sho Suda, Tetsuji Taniguchi
    Gram matrices of reproducing kernel Hilbert spaces over graphs II(graph homomorphisms and de Branges-Rovnyak spaces)
    Nihonkai Math. J., 26:15-29, 2015
  • Eiichi Bannai, Etsuko Bannai, Sho Suda, Hajime Tanaka
    On relative $t$-designs in polynomial association schemes
    Electron. J. Combin., 22:P4.47., 2015
  • Hadi Kharaghani, Wolf Holzman, Sho Suda
    Mutually unbiased biangular vectors and association schemes
    Proceeding of Algebraic Design Theory and Hadamard Matrices, 133, 2015
  • Hadi Kharaghani, Sara Sasani, Sho Suda
    Mutually unbiased Bush-type Hadamard matrices and association schemes
    Electron. J. Combin., 22:P3.10., 2015
  • Hiroshi Nozaki and Sho Suda
    Weighing matrices and spherical codes
    J. Algebraic Combin., 42(no. 1):283-291, 2015
  • Sho Suda
    Characterizations of regularity for $Q$-polynomial association schemes
    Electron. J. Combin., 22(no.1):Paper 1.12 16 pp., 2015
  • Sho Suda, Hajime Tanaka
    A cross-intersection theorem for vector spaces based on semidefinite programming
    Bull. Lond. Math. Soc., 46(2):342-348, 2014
  • Aidan Roy, Sho Suda
    Compelx spherical designs and codes
    J. Combin. Des., 22(3):105-148, 2014
  • Michio Seto, Sho Suda, Tetsuji Taniguchi
    Gram matrices of reproducing kernel Hilbert spaces over graphs
    Linear Algebra Appl., 445:56-68, 2014
  • Hiroshi Nozaki, Sho Suda
    A characterization of skew Hadamard matrices and doubly regular tournaments
    Linear Algebra Appl., 437(no.3):1050-1056, 2012
  • Sho Suda
    On $Q$-polynomial association schemes of small class
    Electron. J. Combin., 19:68, 2012
  • Sho Suda
    A generalization of Erd\H{o}s-Ko-Rado theorem to $t$-designs in certain semilattices
    Discrete Math., 312:1827-1831, 2012
  • Sho Suda
    New Parameters of subsets in polynomial association schemes
    J. Combin. Theory Ser. A, 119:117-134, 2012
  • Hiroshi Nozaki, Sho.Suda
    Bounds on s-distance sets with strength t
    SIAM J. Discrete Math., 25(4):1699-1713, 2011
  • Sho Suda
    On spherical designs obtained from Q-polynomial association schemes
    J. Combin. Des., 19(3):167-177, 2011
  • Sho Suda
    Coherent configurations and triply regular association schemes obtained from spherical designs
    J. Combin. Theory Ser. A, 117:1178-1194, 2010
  • Kanat Abdukhalikov, Eiichi Bannai, Sho Suda
    Association schemes related to universally optimal configurations, Kerdock codes and extremal Euclidean line-sets
    J. Combin. Theory Ser. A, 116:434-448, 2009

Research Grants

Grants-in-Aid for Scientific Research(Research representative)
  • 2018 - 2021 , 複素球面上の符号・デザインの研究 , 基盤研究(C)
  • 2015 - 2017 , 代数的組合せ論を用いたアダマール行列の研究 , 若手研究(B)
Grants-in-Aid for Scientific Research(Those who allot it)
  • 2015 - 2017 , グラフ準同型写像の関数解析学的研究 , 基盤研究(C)
  • 2014 - 2016 , 有限群と格子を用いた球デザインの構成 , 基盤研究(C)

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