scholarly journals The Clar covering polynomial of hexagonal systems III

2000 ◽  
Vol 212 (3) ◽  
pp. 261-269 ◽  
Author(s):  
Heping Zhang ◽  
Fuji Zhang
2012 ◽  
Vol 67 (10-11) ◽  
pp. 550-558
Author(s):  
Liqiong Xu ◽  
Fuji Zhangb

In this paper, we discuss the quasi-ordering of hexagonal systems with respective to the coefficients of their Clar covering polynomials (also known as Zhang-Zhang polynomials). The last six minimal catacondensed hexagonal systems and the hexagonal chains with the maximum Clar covering polynomial are determined. Furthermore, the smallest pair of incomparable catacondensed hexagonal systems is given.


1996 ◽  
Vol 69 (1-2) ◽  
pp. 147-167 ◽  
Author(s):  
Heping Zhang ◽  
Fuji Zhang

2013 ◽  
Vol 439 (7) ◽  
pp. 1825-1833 ◽  
Author(s):  
Juan Rada ◽  
Ivan Gutman ◽  
Roberto Cruz
Keyword(s):  

1988 ◽  
Vol 72 (1-3) ◽  
pp. 405-415 ◽  
Author(s):  
Zhang Fu-ji ◽  
Guo Xiao-feng ◽  
Chen Rong-si

Sign in / Sign up

Export Citation Format

Share Document