Title
Erdős-Gallai stability theorem for linear forests.
Abstract
The Erdős–Gallai Theorem states that every graph of average degree more than l−2 contains a path of order l for l≥2. In this paper, we obtain a stability version of the Erdős–Gallai Theorem in terms of minimum degree. Let G be a connected graph of order n and F=(⋃i=1kP2ai)⋃(⋃i=1lP2bi+1) be k+l disjoint paths of order 2a1,…,2ak,2b1+1,…,2bl+1, respectively, where k≥0, 0≤l≤2, and k+l≥2. If the minimum degree δ(G)≥∑i=1kai+∑i=1lbi−1, then F⊆G except several classes of graphs for sufficiently large n, which extends and strengths the results of Ali and Staton for an even path and Yuan and Nikiforov for an odd path.
Year
DOI
Venue
2019
10.1016/j.disc.2018.11.021
Discrete Mathematics
Keywords
Field
DocType
Erdős–Gallai Theorem,Stable problem,Linear forest,Path
Graph,Discrete mathematics,Combinatorics,Disjoint sets,Connectivity,Stability theorem,Mathematics
Journal
Volume
Issue
ISSN
342
3
0012-365X
Citations 
PageRank 
References 
0
0.34
4
Authors
2
Name
Order
Citations
PageRank
Ming-Zhu Chen100.34
Xiao-Dong Zhang29719.87