The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

Displaying similar documents to “Centrally symmetric Hasse diagrams of finite modular lattices”

Heavy subgraph pairs for traceability of block-chains

Binlong Li, Hajo Broersma, Shenggui Zhang (2014)

Discussiones Mathematicae Graph Theory

Similarity:

A graph is called traceable if it contains a Hamilton path, i.e., a path containing all its vertices. Let G be a graph on n vertices. We say that an induced subgraph of G is o−1-heavy if it contains two nonadjacent vertices which satisfy an Ore-type degree condition for traceability, i.e., with degree sum at least n−1 in G. A block-chain is a graph whose block graph is a path, i.e., it is either a P1, P2, or a 2-connected graph, or a graph with at least one cut vertex and exactly two...