10 citations · 10 across the 2 of their papers we have counts for
3 papers
New concept of connection in signed graphs
Ouahiba Bessouf, Abdelkader Khelladi, Thomas Zaslavsky
In a signed graph each edge has a sign, or . We introduce in the present paper a new definition of connection in a signed graph by the existence of both positive and negat…
Transitive closure and transitive reduction in bidirected graphs
Ouahiba Bessouf, Abdelkader Khelladi, Thomas Zaslavsky
In a bidirected graph an edge has a direction at each end, so bidirected graphs generalize directed graphs. We generalize the definitions of transitive closure and transitive reduc…
Connection between ordinary multinomials, generalized Fibonacci numbers, partial Bell partition polynomials and convolution powers of discrete uniform distribution
Hacene Belbachir, Sadek Bouroubi, Abdelkader Khelladi
Using an explicit computable expression of ordinary multinomials, we establish three remarkable connections, with the q-generalized Fibonacci sequence, the exponential partial Bell…