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Paper Abstract and Keywords
Presentation 2014-10-08 14:45
Reconfiguration of List Colorings in a Graph
Tatsuhiko Hatanaka, Takehiro Ito, Xiao Zhou (Tohoku Univ.) COMP2014-29
Abstract (in Japanese) (See Japanese page) 
(in English) We study the problem of transforming one list (vertex) coloring of a graph into another list coloring by changing only one vertex color assignment at a time, while at all times maintaining a list coloring, given a list of allowed colors for each vertex. This problem is known to be PSPACE-complete for bipartite planar graphs. In this paper, we give precise analyses of the problem with respect to pathwidth. We first show that the problem remains PSPACE-complete even for graphs with pathwidth two. In contrast, we then give a polynomial-time algorithm to solve the problem for graphs with pathwidth one.
Keyword (in Japanese) (See Japanese page) 
(in English) graph algorithm / list coloring / pathwidth / PSPACE-complete / reachability on solution space / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 238, COMP2014-29, pp. 19-24, Oct. 2014.
Paper # COMP2014-29 
Date of Issue 2014-10-01 (COMP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 2014-10-08 - 2014-10-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Chuo University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To COMP 
Conference Code 2014-10-COMP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Reconfiguration of List Colorings in a Graph 
Sub Title (in English)  
Keyword(1) graph algorithm  
Keyword(2) list coloring  
Keyword(3) pathwidth  
Keyword(4) PSPACE-complete  
Keyword(5) reachability on solution space  
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1st Author's Name Tatsuhiko Hatanaka  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Takehiro Ito  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Xiao Zhou  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2014-10-08 14:45:00 
Presentation Time 30 minutes 
Registration for COMP 
Paper # COMP2014-29 
Volume (vol) vol.114 
Number (no) no.238 
Page pp.19-24 
#Pages
Date of Issue 2014-10-01 (COMP) 


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