A variation of a conjecture due to Erdös and Sós.

Autor: Jian Hua Yin1 yinjh@ustc.edu, Jiong Sheng Li2 lijs@ustc.edu.cn
Zdroj: Acta Mathematica Sinica. May2009, Vol. 25 Issue 5, p795-802. 8p.
Databáze: Academic Search Ultimate