2 papers
q-fin.RM2025
Global Balance and Systemic Risk in Financial Correlation Networks
Paolo Bartesaghi, Fernando Diaz-Diaz, Rosanna Grassi +1
The global balance index is used in the network literature to quantify how balanced a signed network is. In this paper we show that the global balance index of financial correlatio…
math.MG2025
Signed graphs in data sciences via communicability geometry
Fernando Diaz-Diaz, Ernesto Estrada
Signed graphs are an emergent way of representing data in a variety of contexts where antagonistic interactions exist. These include data from biological, ecological, and social sy…