Graph homomorphism

Results: 51



#Item
11Graph theory / Mathematics / Graph coloring / Homomorphism / Morphisms / XTR / Order

Hierarchies in Fragments of Monadic Strict NP Barnaby Martin and Florent Madelaine Department of Computer Science, University of Durham, Science Labs, South Road, Durham DH1 3LE, U.K. Abstract. We expose a strict hierar

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Source URL: www.bedewell.com

Language: English - Date: 2009-11-10 10:56:42
12Mathematics / Graph theory / Morphisms / Graph homomorphism / Homomorphism / Injective function / Weight / Matching / Bipartite graph

Finding Occurrences of Protein Complexes in Protein-Protein Interaction Graphs ?,?? Guillaume Fertin a , Romeo Rizzi b and St´ephane Vialette c a Laboratoire d’Informatique de Nantes-Atlantique (LINA), CNRS UMR 6241,

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Source URL: pagesperso.lina.univ-nantes.fr

Language: English - Date: 2009-07-03 08:56:56
13Graph theory / Mathematics / Discrete mathematics / NP-complete problems / Morphisms / Graph coloring / Graph homomorphism / Degree / Line graph

Quantified Constraints on Directed Graphs Barnaby Martin and Florent Madelaine Department of Computer Science, University of Durham, Science Labs, South Road, Durham DH1 3LE, U.K. Abstract We study the quantified H-colou

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Source URL: www.bedewell.com

Language: English - Date: 2009-11-10 10:56:50
14Graph theory / Mathematics / Discrete mathematics / Morphisms / Graph connectivity / Graph homomorphism / Graph coloring / Order theory / Tree / Homomorphism / Hypergraph / Duality

Structural aspects of the class of relational structures J. Foniok Department of Applied Mathematics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic. Abstract. We summarise some older res

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Source URL: www.ifor.math.ethz.ch

Language: English - Date: 2007-10-19 09:53:12
15Graph theory / Extremal graph theory / Graph homomorphism / Graph coloring / Structure / Skew-symmetric graph / Line graph

Rainbow triangles in three-colored graphs J´ozsef Balogh∗ Ping Hu† Bernard Lidick´

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Source URL: orion.math.iastate.edu

Language: English - Date: 2014-08-22 14:45:00
16Morphisms / Graph theory / NP-complete problems / Graph coloring / Graph operations / Pathwidth / Graph homomorphism / Treewidth / Cograph / Graph isomorphism / Indifference graph / Clique-width

Finding vertex-surjective graph homomorphisms⇤ Petr A. Golovach†, Bernard Lidick´ y‡, † Barnaby Martin, and Dani¨el Paulusma†

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Source URL: orion.math.iastate.edu

Language: English - Date: 2014-08-22 14:45:03
17Morphisms / Graph theory / NP-complete problems / Graph isomorphism / Core / Graph homomorphism / Homomorphism / Duality / Subgraph isomorphism problem / Group theory

Graphs and Homomorphisms Our contribution Finding vertex-surjective graph homomorphisms Petr Golovach, Bernard Lidick´y,

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Source URL: www.bedewell.com

Language: English - Date: 2012-07-03 09:45:04
18Graph coloring / Graph homomorphism / Planar graph / Chordal graph / Incidence coloring / Interval edge coloring

Fine structure of 4-critical triangle-free graphs III. General surfaces Zdenˇek Dvoˇra´k∗ Bernard Lidick´ y†

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Source URL: orion.math.iastate.edu

Language: English - Date: 2015-05-27 17:20:44
19Graph theory / Graph coloring / NP-complete problems / Graph operations / Graph homomorphism / Morphisms / Bipartite graph / Graph / Core / Cycle / Matching / Bipartite double cover

Towards a Trichotomy for Quantified H-Coloring Barnaby Martin and Florent Madelaine Department of Computer Science, University of Durham, DH1 3LE, U.K. Abstract. Hell and Neˇsetˇril proved that

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Source URL: www.bedewell.com

Language: English - Date: 2009-11-10 10:57:00
20Model theory / Morphisms / Functions and mappings / Mathematical structures / Universal algebra / Homomorphism / Structure / Embedding / Injective function / Age / Graph homomorphism

Universality Homomorphism order Locally injective homomorphisms Locally injective homomorphisms are universal on connected graphs

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Source URL: www.ucw.cz

Language: English - Date: 2013-11-18 11:55:01
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