Distance restricted optimal pebbling in paths

2021 ◽  
Vol 297 ◽  
pp. 46-54
Author(s):  
Chin-Lin Shiue
Keyword(s):  
2019 ◽  
Vol 342 (7) ◽  
pp. 2148-2157 ◽  
Author(s):  
Ervin Győri ◽  
Gyula Y. Katona ◽  
László F. Papp ◽  
Casey Tompkins

2020 ◽  
Vol 279 ◽  
pp. 125-133
Author(s):  
Chin-Lin Shiue
Keyword(s):  

2015 ◽  
Vol 32 (3) ◽  
pp. 1229-1247 ◽  
Author(s):  
Chenxiao Xue ◽  
Carl Yerger
Keyword(s):  

Author(s):  
Ervin Győri ◽  
Gyula Y. Katona ◽  
László F. Papp
Keyword(s):  

In [6] the authors conjecture that if every vertex of an infinite square grid is reachable from a pebble distribution, then the covering ratio of this distribution is at most 3.25. First we present such a distribution with covering ratio 3.5, disproving the conjecture. The authors in the above paper also claim to prove that the covering ratio of any pebble distribution is at most 6.75. The proof contains some errors. We present a few interesting pebble distributions that this proof does not seem to cover and highlight some other difficulties of this topic.


2007 ◽  
Vol 307 (17-18) ◽  
pp. 2315-2321 ◽  
Author(s):  
Jessica Muntz ◽  
Sivaram Narayan ◽  
Noah Streib ◽  
Kelly Van Ochten
Keyword(s):  

2012 ◽  
Vol 25 (4) ◽  
pp. 597-601 ◽  
Author(s):  
Hung-Lin Fu ◽  
Kuo-Ching Huang ◽  
Chin-Lin Shiue
Keyword(s):  

2009 ◽  
Vol 13 (2A) ◽  
pp. 419-429 ◽  
Author(s):  
Chin-Lin Shiue ◽  
Hung-Lin Fu

2000 ◽  
Vol 222 (1-3) ◽  
pp. 89-100 ◽  
Author(s):  
Hung-Lin Fu ◽  
Chin-Lin Shiue

2019 ◽  
Vol 260 ◽  
pp. 117-130
Author(s):  
A. Czygrinow ◽  
G. Hurlbert ◽  
G.Y. Katona ◽  
L.F. Papp

2019 ◽  
Vol 266 ◽  
pp. 340-345
Author(s):  
Ervin Győri ◽  
Gyula Y. Katona ◽  
László F. Papp
Keyword(s):  

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