Hideo Kojima

J-GLOBAL         Last updated: Dec 8, 2019 at 16:15
Hideo Kojima
Niigata University

Research Areas

  • Mathematics / Algebra / Algebraic Geometry

Published Papers

Some results on open algebraic surfaces of logarithmic Kodaira dimension zero
Hideo Kojima
Journal of Algebra   547 238-261   Apr 2020   [Refereed]
Kitazawa Chiaki, Kojima Hideo, Nagamine Takanori
JOURNAL OF ALGEBRA   533 266-282   Sep 2019   [Refereed]
Log del Pezzo surfaces of rank one containing the affine plane
Hideo Kojima, Takeshi Takahashi
Nihonkai Mathematical Journal   29(2) 77-130   Dec 2018   [Refereed]
Rational unicuspidal curves on Q-homology projective planes whose complements have logarithmic Kodaira dimension -∞
Hideo Kojima
Nihonkai Mathematical Journal   29(1) 29-43   Jun 2018   [Refereed]
Irrational open surfaces of non-negative logarithmic Kodaira dimension
Kojima Hideo
Kojima Hideo
COMMUNICATIONS IN ALGEBRA   44(5) 1924-1930   2016   [Refereed]
Kojima Hideo, Nagamine Takanori
JOURNAL OF PURE AND APPLIED ALGEBRA   219(12) 5493-5499   Dec 2015   [Refereed]
Kato Masaya, Kojima Hideo
COMMUNICATIONS IN ALGEBRA   43(5) 1935-1938   2015   [Refereed]
Normal log canonical del Pezzo surfaces of rank one with unique singular points
Hideo Kojima
Nihonkai Mathematical Journal   25(2) 105-118   Dec 2014   [Refereed]
Kojima Hideo
COLLOQUIUM MATHEMATICUM   137(2) 215-220   2014   [Refereed]


Gene Freudenburg, Hideo Kojima, Takanori Nagamine
   Oct 2019
This paper considers the family Tex of smooth affine factorial
surfaces of logarithmic Kodaira dimension 0 with trivial units over an
algebraically closed field Tex. Our main result (Theorem 4.1) is that the
number of isomorphism class...
Chiaki Kitazawa, Hideo Kojima, Takanrori Nagamine
   Jul 2018
In this paper, we give some results on closed polynomials and factorially
closed polynomial in Tex variables. In particular, we give a characterization
of factorially closed polynomials in Tex variables over an algebraically closed
field for any c...

Books etc

増田 佳代, 岸本 崇, 小島 秀雄(数学), 宮西 正宜, Zaidenberg Mikhail
Mathematical Society of Japan   2017   ISBN:9784864970488
増田 佳代, 小島 秀雄(数学), 岸本 崇, Conference on Affine Algebraic Geometry
World Scientific   2013   ISBN:9789814436694

Conference Activities & Talks

Logarithmic plurigenera of smooth affine surfaces [Invited]
Hideo Kojima
Algebraic surfaces and related topics   28 Aug 2019   
Normal log canonical del Pezzo surfaces of rank one
Hideo Kojima
3 Sep 2018   
Normal log canonical del Pezzo surfaces of rank one [Invited]
Hideo Kojima
Algebraic Geometry – Mariusz Koras in memoriam   30 May 2018   
Complements of plane curves with logarithmic Kodaira dimension zero [Invited]
Hideo Kojima
Polynomial Rings and Affine Algebraic Geometry   12 Feb 2018   
Normal del Pezzo surfaces of rank one with log canonical singular points [Invited]
Hideo Kojima
The 15th Affine Algebraic Geometry Meeting   2 Mar 2017   

Association Memberships