NUMATA Yasuhide Professor

Algebra

Organization
Department of Mathematics [Graduate School of Information Science and Tech.]
Research Interest
Bijective Combinatorics, Enumerative Combinatorics, Combinatorics related to representation theory
Keywords
Young diagrams, Young tableaux, Symmetric function, Groebner bases, One-to-one correspondences

Research Activities

I study combinatorial object from the point of view of bijective combinatorics, i.e., enumerative combinatorics. In particular, I am interested in combinatorial objects appearing in theory of representation and algebra. For example, the lattice of Young diagrams, which play important rolls to describe symmetric function, irreducible representations, and so on, is one of most important objects. Moreover, I am also interested in combinatorial structures appearing in computational algebraic statistics, algebraic topological data analysis, and so on.

Papers

  • Numata, Yasuhide; Yamanouchi, Yuiko On the action of the toggle group of the Dynkin diagram of type A. Algebr. Comb. 5 (2022), no. 1, 149–161.
    MR4389965
  • Maeno, Toshiaki; Numata, Yasuhide Sperner property and finite-dimensional Gorenstein algebras associated to matroids. J. Commut. Algebra 8 (2016), no. 4, 549–570.
    MR3566530
  • Kuriki, Satoshi; Numata, Yasuhide Graph presentations for moments of noncentral Wishart distributions and their applications. Ann. Inst. Statist. Math. 62 (2010), no. 4, 645–672.
    MR2652310

WebPage

Link

Contact

nu（at）math.sci.hokudai.ac.jp