日本語
The University of Electro-Communications 
Graduate School of Informatics and Engineering, School of Informatics and Engineering 
Department of Informatics, Cluster II (Emerging Multi-interdisciplinary Engineering) 

Associate Professor 
YOSHIYASU ISHIGAMI 

Academic background
Waseda University  Faculty of Science and Engineering  1990/03  Graduated 
Waseda University  Graduate School, Division of Science and Engineering  数学専攻  Master's program  1992/03  Completed 
Waseda University  Graduate School, Division of Science and Engineering  数学専攻  Doctoral program  1994/03  Completed 

Academic degrees
Doctor(Science)  Waseda University  1994/03 

Current research areas

Current research subjects
Pseudo-probabilistic methods in combinatorics and graph theory with applications to computer sciences. Ramsey theory. Probabilistic and approximation algorithms.  combinatorics graph theory Ramsey theory algorithms  1994-Present 

Published papers
Paper  Yes  Vertex-disjoint cycles containing prescribed vertices  Yoshiyasu Ishigami, Jiang Tao  Journal of Graph Theory  42/ 4, 276-296  2003/04 
Paper  Yes  Almost-spanning subgraphs with bounded degree in dense graphs  Yoshiyasu Ishigami  European Journal of Combinatorics  23/ 5, 583-612  2002/07 
Paper  Yes  A common extension of the Erdos-Stone theorem and the Alon-Yuster theorem for unbounded graphs  Yoshiyasu Ishigami  European Journal of Combinatorics  23/ 4, 431-448  2002/05 
Paper  Yes  Proof of a Conjecture of Bollobas and Kohayakawa on the Erdos-Stone Theorem  Yoshiyasu Ishigami  Journal of Combinatorial Theory Ser. B, Academic Press  85/ 2, 222-254  2002/02 
Paper  Yes  An extension of a theorem on cycles containing specified independent edges  Yoshiyas Ishigami, Hong Wang  Discrete Mathematics  245/ 1-3, 127-137  2002/02 
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Research presentations
Oral presentation for an academic conference  Random graphs and pseudo-random graphs I,II,III  研究集会 Random graphsとその周辺  No  石上嘉康  2004/01 
Oral presentation for an academic conference  Spanning subgraphs in dense graphs  Annual Join Meeting for the Study of Applied Mathematics  No  Y. Ishigami  2003/12 
Oral presentation for an academic conference  An analytic study of substructures of abstract graphs  Designs, Codes, Graphs and their Links IV  No  Yoshuyasu Ishigami  2003/07 
Oral presentation for an academic conference  On the regularity lemma  関西グラフ理論研究集会  No  Y.Ishigami  2002/08 
Oral presentation for an academic conference  The pseudo-probabilistic method in extremal graph theory  無限グラフとスペクトル  No  石上嘉康  2002/01 
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Awards
Onoazusa Memorial Award(Academic Award)  1993/03/25 
Isao OKAWA Award  1992/03/09 
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