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25  Articles
1 of 3 pages  |  10  records  |  more records»
The Hanani–Tutte theorem is a classical result proved for the first time in the 1930s that characterizes planar graphs as graphs that admit a drawing in the plane in which every pair of edges not sharing a vertex cross an even number of times. We generali... see more

Fulek et al. (2013, 2016, 2017) have presented Hanani-Tutte results for (radial) level-planarity, i.e., a graph is (radial) level-planar if it admits a (radial) level drawing where any two independent edges cross an even number of times. We show that the&... see more

Fulek et al. (2013, 2016, 2017) have presented Hanani-Tutte results for (radial) level-planarity, i.e., a graph is (radial) level-planar if it admits a (radial) level drawing where any two independent edges cross an even number of times. We show that the&... see more

The notion of the matrix Jacobson graph was introduced in 2019. Let R be a commutative ring and J(R) be the Jacobson radical of ring R. The matrix Jacobson graph of ring R size m × n, denoted ??(R)m × n, is def... see more

Sazdanovic and Yip (2018) defined a categorification of Stanley’s chromatic symmetric function called the chromatic symmetric homology, given by a suitable family of representations of the symmetric group. In this paper we prove that, as co... see more



Kajian literatur tentang teori graf, khususnya planaritas suatu graf, yaitu menentukan apakah suatu graf itu termasuk graf planar atau bukan sudah banyak dibahas. Pada artikel ini pembahasan sedikit berbeda yaitu melakukan generalisasi atau perumuman teor... see more


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