scholarly journals Every Planar Map Is Four Colorable

2019 ◽  
pp. 145-152
Keyword(s):  
Author(s):  
Maxim Krikun ◽  
Vadim Malyshev
Keyword(s):  

2002 ◽  
Vol 15 (5) ◽  
pp. 567-573 ◽  
Author(s):  
Jian-Guo Si ◽  
Xin-Ping Wang ◽  
Wei-Nian Zhang

The Book of L ◽  
1986 ◽  
pp. 29-43 ◽  
Author(s):  
Jack W. Carlyle ◽  
Sheila A. Greibach ◽  
Azaria Paz

1977 ◽  
Vol 21 (3) ◽  
pp. 491-567 ◽  
Author(s):  
K. Appel ◽  
W. Haken ◽  
J. Koch
Keyword(s):  

2011 ◽  
Vol 225-226 ◽  
pp. 1274-1278
Author(s):  
Ling Xia Liu

In this paper, we study the existence of analytic invariant curves for two-dimensional maps in the complex field C. Employing the method of majorant series, we discuss the eigenvalueof the mapping at a fixed point. We discuss not only thoseat resonance, i.e., at a root of the unity but also thosenear resonance under Brjuno condition.


2007 ◽  
Vol 26 (3) ◽  
pp. 30 ◽  
Author(s):  
Paul Asente ◽  
Mike Schuster ◽  
Teri Pettit
Keyword(s):  

1991 ◽  
Vol 23 (1) ◽  
pp. 89-90
Author(s):  
Robin J. Wilson
Keyword(s):  

1981 ◽  
Vol 8 (1) ◽  
pp. 17-33 ◽  
Author(s):  
Thomas D. Rogers ◽  
Bruce L. Clarke
Keyword(s):  

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