衰弱的心
发表于 2025-3-23 12:25:01
Circuit Double Covers of Graphs,raph theorists as one of the major open problems in the field. The CDC conjecture, Tutte’s 5-flow conjecture, and the Berge-Fulkerson conjecture are three major snark family conjectures since they are all trivial for 3-edge-colorable cubic graphs and remain widely open for snarks. This chapter is a
Nostalgia
发表于 2025-3-23 14:20:56
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剧毒
发表于 2025-3-23 21:52:15
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DOSE
发表于 2025-3-24 02:04:14
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反省
发表于 2025-3-24 05:12:19
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不愿
发表于 2025-3-24 07:00:26
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大猩猩
发表于 2025-3-24 13:01:23
https://doi.org/10.1007/978-1-349-12564-7 The most studied property is that of inducing an empty graph–a graph without any edges. Changing the property slightly creates interesting variations. In this paper I will discuss a few of my favorite coloring problems and variations. This discussion is not meant to be comprehensive. The field is s
斜
发表于 2025-3-24 15:28:25
https://doi.org/10.1007/978-1-349-13431-1g (1) the 1963 Vizing’s Conjecture about the domination number of the Cartesian product of two graphs , (2) the 1966 Hedetniemi Conjecture about the chromatic number of the categorical product of two graphs , (3) the 1976 Tree Packing Conjecture of Gyárfás and Lehel , (4) the 1981 Path P
Little
发表于 2025-3-24 22:52:29
https://doi.org/10.1007/978-3-642-34249-3 A closer inspection reveals an interesting common feature. Trees and hypercubes can be constructed using a similar sort of expansion procedure. Now, we can introduce a class of graphs that forms a common generalization of trees and hypercubes: it consists of all those graphs that can be constructed
Obsequious
发表于 2025-3-25 02:22:41
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