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math.CO2018
Not all partial cubes are -graceful
Nathann Cohen, Matjaž Kovše
It is shown that the graph obtained by merging two vertices of two 4-cycles is not a -graceful partial cube, thus answering in the negative a question by Brešar and Klavžar from…
math.CO2018
Steiner Wiener index of block graphs
Matjaž Kovše, Rasila V A, Ambat Vijayakumar
Let be a set of vertices of a connected graph . The Steiner distance of is the minimum size of a connected subgraph of containing all the vertices of . The Steine…