 2012
 Counting the number of complete subgraphs in the Paley graph,
March 8,
Mathematics Colloquium
at Boise State University, Boise, Idaho.
 Counting the number of complete subgraphs in the Paley graph,
January 9,
Queen's algebraic geometry seminar
at Queen's University, Kingston, Canada.
 2011
 New examples of defective secant varieties of SegreVeronese varieties,
October 23,
The AMS 2011 Fall Western Section Meeting, University of Utah, Salt
Lake City, Special Session on Computational and Algorithmic Algebraic
Geometry.
 Implementation of Kumar's correspondence, October 22, The AMS 2011 Fall Western Section Meeting, University of Utah, Salt Lake City, Special Session on Commutative Algebra.
 New examples of defective secant varieties of SegreVeronese
varieties, October 15,
The AMS 2011 Fall Central Section Meeting,
University of Nebraska, Lincoln, Special Session on Algebraic
Geometry and Graded Commutative Algebra .
 Report on the recent progress on the study of secant
defectivity of SegreVeronese varieties, October 6,
The 2011 SIAM
Conference on Applied Algebraic Geometry, North Carolina State
University, Raleigh, Special Session on Algebraic Geometry of Tensor
Decompositions and its Applications.
 New examples of defective secant varieties of SegreVeronese varieties, July 9, The Foundation of Computational Mathematics Conference, Budapest, Workshop on Computational Algebraic Geometry
 2010
 On the secant defectivity of SegreVeronese varieties I & II,
November 1013,
Algebraic Geometry Symposium,
Waseda University, Tokyo, Japan.
 On the secant defectivity of SegreVeronese varieties, September 03,
Geometry Seminar,
Texas A&M University, College Station, TX.
 Monomial approach to study higher secant varieties of Grassmann
varieties, August 05,
Workshop: Coding Theory and Geometry, Colorado State University,
Fort Collins, CO.
 2009
 On nondefectivity of certain SegreVeronese varieties, June
1519,
Effective Methods of Algebraic Geometry 2009 (MEGA 2009),
Barcelona, Spain.
 Secant varieties of tangential varieties of cubic Veronese
embeddings, June 1012,
Workshop on Tensors and Interpolation,
Nice, France.
 Algebraic geometry of tensors, March 5,
Colloquium, Washington State University, Pullman, WA.
 2008
 2007
 2006
 The QuillenSuslin theorem and the construction of vector bundles,
October 18, Workshop on
Syzygies and Hilbert Functions
at the Banff International Research Station.
 Simple graphs and plane arrangements in projective fourspace,
August 3,
Workshop on Computational and Combinatorial Commutative Algebra
,
Fields Institute, Toronto, Canada.
 Theory and computation in the search of special surfaces,
July 28,
Workshop on Computational and Combinatorial Commutative Algebra
,
Fields Institute, Toronto, Canada.
 Implementation of Kumar's correspondence,
July 10,
ISSAC 2006 ,
Genova, Italy.
 Arrangements of planes in projective fourspace formed from simple graphs,
July 3,
Algebraic Geometry Seminar
,
University of Florence.
 Stable reflexive sheaves associated to the Paley graph,
April 89,
The AMS 2006 Spring Central Sectional Meeting
at the University of Notre Dame,
Special Session on Combinatorial Algebraic Geometry.
 Solving systems of polynomial equations,
March 21, Colloquium, Western Washington University.
 Finding needles in a haystack:
Theory and computation in the search for special surfaces,
March 20, Colloquium, Western Washington University.
 Finding needles in a haystack:
Theory and computation in the search for special surfaces,
March 08, Colloquium, University of Idaho.
 Finding needles in a haystack:
Computer searches for special surfaces,
March 03, Colloquium, University of North Carolina at Greensboro.
 2005
 Construction of rational surfaces in projective fourspace,
October 2123,
The 2005 Fall Central Section meeting of the AMS,
Lincoln, Nebraska, Special Session on Algebraic Geometry.
 Smooth generaltype surfaces in P^{4}
with many 7secant lines,
September 21,
Algebra Seminar, Colorado State University.
 Arrangements of planes in P^{4}
formed from the Petersen graph,
September 15,
Algebra Seminar, Colorado State University.

An application of the QuillenSuslin theorem to the
construction of vector bundles ,
August 24, Theoretical effectivity and practical effectivity
of Groebner basis,
Rikkyo University

Construction of rational surfaces in projective fourspace ,
August 4, 2005 AMS Summer Institute on Algebraic Geoemtry,
Seattle [ Slides ]

Construction of surfaces in projective fourspace ,
February 24, Colloquium, Oregon State University

Construction of nongeneral type smooth surfaces
in projective fourspace ,
Feburary 10, Colloquium, Washington University in St. Louis

2004

A computeraided proof of the existence of
a smooth rational surface,
October 28, Algebra Sminar, Colorado State University

Paley graphs and rational points of varieties ,
October 1, Rocky Mountain Algebraic Combinatorics Seminar,
Colorado State University

Surfaces in P^{4} ,
April 13, Algebra Seminar, Colorado State University

Construction of vector bundles on projective spaces
,
March 2, Commutative Algebra and Algebraic Geometry Seminar,
University of California, Berkeley.

2003
Last Updated: August 13, 2012 by Hirotachi Abo
