1999.04-2001.03 International Christian University, M.A. Mathematics

Advisor: Prof. Hiroshi Suzuki

2001.09-2007.08 Boston University Ph.D. Mathematics

Advisor: Professor Takashi Kimura

2002.09-2007.06 Boston University TA (Boston, USA)

2007.09-2008.05 Max-Planck Institute for Mathematics Research fellow (Bonn, Germany)

2008.07-2011.06 Cornell University H.C. Wang Assistant Professor (Ithaca, USA)

2011.09-2013.02 KAIST ASARC Postdoc (Daejeon, KOREA)

2013.03-2015.02 KAIST Visiting Professor (Daejeon, Korea)

**Papers**:mathscinet
arXiv

[1] Stringy
and Orbifold cohomology of Wreath Product Orbifolds, European
Journal of Pure and Applied Mathematics, Vol.5, No.4 (2012), p.492-510

[2] Equivariant Cohomology for
Hamiltonian Torus Actions on Symplectic Orbifolds , with Tara S. Holm,
Transformation
Groups Vol.17, No.3 (2012), p.717-746, arXiv.

[3] Connected sums of
simplicial complexes and equivariant cohomology, with W. Frank Moore,
Osaka Journal of Mathematics Vol. 51, No. 2 (2014), p.405-425, arXiv.

[4] Moment Angle Complexes and Big
Cohen-Macaulayness, with Shisen Luo and W. Frank Moore, Algebraic and Geometric Topology, Vol. 14, No. 1 (2014), p.379-406, arXiv.

[5] Equivariant Cohomology of
Weighted Grassmannians and Weighted Schubert Classes, with Hiraku Abe, International Mathematical Research Notices (2015) 2015 (9), 2499-2524, arXiv.

[6] Schur polynomials and Weighted Grassmannians, with Hiraku Abe, Journal of Algebraic Combinatorics, 42 (2015), no. 3, 875-892.arXiv.

[7] Pfaffian sum formula for the symplectic Grassmannians, with Takeshi Ikeda, Mathematische Zeitschrift, 280 (2015), no. 1-2, 269-306.arXiv.

[8] Equivariant Giambelli formula for the symplectic Grassmannians–Pfaffian Sum Formula, with Takeshi Ikeda, FPSAC 2015 Extended Abstract, 2015.

[9] Kempf-Laksov Schubert classes for even infinitesimal cohomology theories, with Thomas Hudson, to appear in the Proceedings of the IMPANGA15 conference, 2016.

[10] Degeneracy Loci Classes in K-theory - Determinantal and Pfaffian Formula -, with Thomas Hudson, Takeshi Ikeda, and Hiroshi Naruse, Advances in Mathematics
Volume 320, 7 November 2017, Pages 115–156.

(Preprint)

[11] Segre classes and Kempf-Laksov formula in algebraic cobordism, with Thomas Hudson, 2016.

[12] An algebraic proof of determinant formulas of Grothendieck polynomials, 2016.

[13] Vexillary degeneracy loci classes in K-theory and algebraic cobordism, with Thomas Hudson, 2017.

[14] Flagged Grothendieck polynomials, 2017.

**Expository**:

[1] Lectures
on Cohomology of Toric Manifolds, Trends in
Mathematics - New Series, Information Center for Mathematical Sciences,
Volume 14, Number 1, 2012, pages 31-52.

**
Research Interests: **I'm interested in group actions and orbifolds in symplectic geometry and algebraic geometry. Recently I work on Schubert calculus of classical homogeneous spaces and also the orbifold analogue of flag varieties (weighted Grassmannians, and so on).

**Current Teaching:**

Senior Student Seminars

2016 Basics in Mathematics and Exercises

2016 Exercises in Linear Algebra I

2015 Fall Geometry

2015 Fall Topics in Geometry (graduate course)

2015 Spring Basic Geometry

2015 Spring Exercises in Calculus

**Past Teaching:**

MAS 101 Calculus I

MAS 102 Calculus II

MAS 109 Introduction to Linear Algebra

MAS 201 Differential Equations and Applications

MAS 202 Applied Mathematical Analysis Cornell University:

MATH 1110 Calculus I

MATH 1920 Multivariable Calculus for Engineers / Schedule

MATH 2210 Linear Algebra

MATH 2220 Multivariable Calculus

MATH 4500 Introduction to Topology

MATH 7510 Schubert Calculus

MATH 7570 Poisson Geometry

**Recent conference oganization:**

Algebraic Lie Theory and Representation Theory 2015 (2015年6月5日(金)〜6月8日(月), 岡山いこいの村)

TOPOLOGY OF TORUS ACTIONS AND APPLICATIONS TO GEOMETRY AND COMBINATORICS (2014 August 7-11, KAIST, Daejeon, Korea)

第３回シューベルト・カルキュラスとその周辺 (Schubert calculus, 2014 August 26-29, Okayama University of Science, Japan)

Last updated 2015.04