Abstract
We consider the degree-preserving spanning tree (DPST) problem: given a connected graph G, find a spanning tree T of G such that as many vertices of T as possible have the same degree in T as in G. This problem is a graph-theoretical translation of a problem arising in the system-theoretical context of identifiability in networks, a concept which has applications in e.g., water distribution networks and electrical networks. We show that the DPST problem is NP-complete, even when restricted to split graphs or bipartite planar graphs. We present linear time approximation algorithms for planar graphs of worst case performance ratio 1−ε for every constant ε > 0. Furthermore we give exact algorithms for interval graphs (linear time), graphs of bounded treewidth (linear time), cocomparability graphs (O(n 4)), and graphs of bounded asteroidal number.
| Original language | English |
|---|---|
| Title of host publication | Mathematical Foundations of Computer Science 1998 |
| Subtitle of host publication | 23rd International Symposium, MFCS'98 Brno, Czech Republic, August 24–28, 1998, Proceedings |
| Editors | Luboš Brim, Jozef Gruska, Jiří Zlatuška |
| Place of Publication | Berlin, Heidelberg |
| Publisher | Springer |
| Pages | 713-721 |
| Number of pages | 10 |
| ISBN (Electronic) | 978-3-540-68532-6 |
| ISBN (Print) | 978-3-540-64827-7 |
| DOIs | |
| Publication status | Published - 1998 |
| Event | 23rd International Symposium on Mathematical Foundations of Computer Science, MFCS 1998 - Brno, Czech Republic Duration: 24 Aug 1998 → 28 Aug 1998 Conference number: 23 |
Publication series
| Name | Lecture Notes in Computer Science |
|---|---|
| Publisher | Springer |
| Volume | 1450 |
| ISSN (Print) | 0302-9743 |
| ISSN (Electronic) | 1611-3349 |
Conference
| Conference | 23rd International Symposium on Mathematical Foundations of Computer Science, MFCS 1998 |
|---|---|
| Abbreviated title | MFCS |
| Country/Territory | Czech Republic |
| City | Brno |
| Period | 24/08/98 → 28/08/98 |
Keywords
- Span tree
- Planar graph
- Interval graph
- Chordal graph
- Linear time algorithm
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Dive into the research topics of 'Degree-preserving forests'. Together they form a unique fingerprint.Research output
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Degree-preserving forests
Broersma, H. J., Huck, A., Kloks, A. J. J., Koppius, O., Kratsch, D., Müller, H. C. & Tuinstra, H., 1998, Prague: Charles University. 25 p. (KAM-DIMATIA Series; no. 98-402)Research output: Book/Report › Report › Professional
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