Hopf maximum principle (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Hopf maximum principle" in English language version.

refsWebsite

Global rank English rank

1books.google.com

3^rd place

3^rd place

books.google.com (Global: 3^rd place; English: 3^rd place)

Han, Qing; Lin, Fanghua (2011). Elliptic Partial Differential Equations. American Mathematical Soc. p. 28. ISBN 9780821853139.