A Important Property on Planar Graph
2011 ◽
Vol 50-51
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pp. 245-248
In 1994, C.Thomassen proved that every planar graph is (namely ). In 1993, M.Voigt shown that there are planar graphs which are not . But no one know whether every planar graph is . In this paper, we give a important property on planar graph that “Every planar graph is ” and “Every planar graph is free ” are equivalent.
1996 ◽
Vol 05
(06)
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pp. 877-883
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2020 ◽
Vol 12
(03)
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pp. 2050034
2020 ◽
Vol 12
(04)
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pp. 2050035
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2020 ◽
Vol 40
(4)
◽
pp. 1121-1135
2000 ◽
Vol 09
(08)
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pp. 975-986
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Keyword(s):
2008 ◽
Vol 17
(03)
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pp. 361-375
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1996 ◽
Vol 5
(3)
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pp. 227-245
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Keyword(s):