Wednesday 16 April 2025 at 12 pm, as part of the Al@Bicocca seminar cycle, Stefano Spessato (Niccolò Cusano University) will give the following talk
Title: On the complement of a signed graph
Abstract: A G-gain graph is a triple (Γ, ψ, G) where Γ is a graph, G is a group, and ψ is a function from the set of oriented edges of Γ to G satisfying ψ(x, y)−1 = ψ(y, x). When G = Z2, such graphs are called signed graphs. In recent years, considerable attention has been devoted to extending the rich array of classical graph constructions to the realm of G-gain graphs. During this talk, we will focus on the construction of the complement of a signed graph and it will be shown that the definition introduced in a recent work by Cavaleri, Donno, and the speaker satisfies all the expected properties. Finally, some considerations will be made regarding a possible further extension to G-gain graphs where G is an arbitrary group.
Information to attend
The seminar will be held in Room 2109 (2nd Floor) - U5 Building, University of Milano-Bicocca and will also be available online by this link
For more information, visit the website