Integer 4-flows and cycle covers
NettetC.-Q. Zhang, Integer Flows and Cycle Covers of Graphs, Marcel Dekker, New York, 1997. Google Scholar 16. X. Zhu, Circular Flow Number of Highly Edge Connected Signed Graphs, preprint. Google Scholar Show all references … Nettet1. jan. 1997 · Introduction to integer flows basic properties of integer flows nowhere-zero 4-flows nowhere-zero 3-flows nowhere-zero k-flows faithful cycle covers cycle double …
Integer 4-flows and cycle covers
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Nettet15. sep. 2024 · Fan, G.: Integer 4-flows and cycle covers. Combinatorica, 37, 1097–1112 (2024) Article MathSciNet Google Scholar Jaeger, F.: Flows and generalized coloring theorems in graphs. J. Combin. Theory Ser. B, 26, 205–216 (1979) Article MathSciNet Google Scholar NettetFocuses on classical problems in graph theory, including the 5-flow conjectures, the edge-3-colouring conjecture, the 3-flow conjecture and the cycle double cover conjecture. The text highlights the interrelationships between graph colouring, integer flow, cycle covers and graph minors. It also concentrates on graph theoretical methods and results.
NettetINTEGER 4-FLOWS AND CYCLE COVERS 1101 Lemma 2.5. Let fbe a 4-ow in a graph Gwith a circuit C. Suppose that xyand yzare two adjacent edges of C. If f(xy) and f(yz) … Nettet18. sep. 2024 · Integer flows and cycle covers of graphs by Cun-Quan Zhang 0 Ratings 0 Want to read 0 Currently reading 0 Have read Overview View 1 Edition Details Reviews Lists Related Books Publish Date 1997 Publisher Marcel Dekker Language English Pages 379 Previews available in: English This edition doesn't have a description yet. Can you …
Nettet1. nov. 2024 · A signed circuit cover of G is a collection F of signed circuits in G such that each edge eεE(G) is contained in at least one signed circuit of F; The length of F is the sum of the lengths of the... Nettet30. jan. 2024 · Integer 4-Flows and Cycle Covers Article Dec 2016 Genghua Fan View Show abstract Short Cycle Covers on Cubic Graphs by Choosing a 2-Factor Article Jan 2016 Barbora Candráková Robert Lukoťka...
Nettet1. des. 2024 · Let G be a bridgeless graph and denote by cc(G) the shortest length of a cycle cover of G. Let V2(G) be the set of vertices of degree 2 in G. It is known that if cc(G)ý1.4 E(G) for every bridgeles...
NettetIf a graph has a nowhere-zero 4-flow then it follows from a result of Tutte that satisfies the above conjecture. Thus, by Jaeger's 4-flow theorem [J], the above conjecture is true for every 4-edge-connected graph. ... Integer flows and cycle covers, J. Combinatorial Theory Ser. B 54 (1992), 113-122. hazard identification in a gymNettet5. mai 2012 · Shortest cycle covers. 15. Beyond integer (1, 2)-weight. 16. Petersen chain and Hamilton weights. Appendix A. Preliminary. Appendix B. Snarks, Petersen graph. … hazard identification hierarchy of controlhttp://openproblemgarden.org/op/cycle_double_cover_conjecture hazard identification form template nzNettetInteger Flows and Cycle Covers On Edge-Decomposition of Cubic Graphs Into Copies of the Double-Star with Four Edges ∗† Max-Leaves Spanning Tree Is APX-Hard for Cubic … hazard identification includes whmisNettet15. jun. 1996 · With the aid of those basic properties of nowhere-zero 4-flow and the result about 5-cycle double cover, we are able to prove that each 2-edge-connected graph … hazard identification in the kitchenNettet1. jan. 1992 · INTEGER FLOWS AND CYCLE COVERS 117 By a result derived from Tutte's work by Jaeger [11] (or see [13]), every graph with a nowhere-zero 4-flow can … hazard identification form template australiaNettet3. feb. 2024 · Request PDF On Feb 3, 2024, Siyan Liu and others published 5-Cycle Double Covers, 4-Flows, and Catlin Reduction Find, read and cite all the research … hazard identification number for petrol