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Paper Abstract and Keywords
Presentation 2010-10-15 14:40
Bipartite powers of interval bigraphs
Yoshio Okamoto (Tokyo Inst. of Tech.), Yota Otachi (Tohoku Univ.), Ryuhei Uehara (JAIST) COMP2010-36
Abstract (in Japanese) (See Japanese page) 
(in English) The notion of graph powers is a well-studied topic in graph theory and its applications. In this paper, we investigate a bipartite analogue of graph powers, which we call \emph{bipartite powers of bigraphs}. We show that the classes of bipartite permutation graphs and interval bigraphs are closed under taking bipartite power. We also show that the problem of recognizing bipartite powers is NP-complete in general.
Keyword (in Japanese) (See Japanese page) 
(in English) Bipartite graph power / Interval bigraph / Chordal bipartite graph / Bipartite permutation graph / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 232, COMP2010-36, pp. 35-39, Oct. 2010.
Paper # COMP2010-36 
Date of Issue 2010-10-08 (COMP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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reproduction
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee COMP  
Conference Date 2010-10-15 - 2010-10-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To COMP 
Conference Code 2010-10-COMP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Bipartite powers of interval bigraphs 
Sub Title (in English)  
Keyword(1) Bipartite graph power  
Keyword(2) Interval bigraph  
Keyword(3) Chordal bipartite graph  
Keyword(4) Bipartite permutation graph  
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1st Author's Name Yoshio Okamoto  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Yota Otachi  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Ryuhei Uehara  
3rd Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
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Speaker Author-2 
Date Time 2010-10-15 14:40:00 
Presentation Time 35 minutes 
Registration for COMP 
Paper # COMP2010-36 
Volume (vol) vol.110 
Number (no) no.232 
Page pp.35-39 
#Pages
Date of Issue 2010-10-08 (COMP) 


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