Sabrina Lato

collaborators

4 papers

math.CO2026

New Constructions of Distance-Biregular Graphs

Blas FernÃ¡ndez, Ferdinand Ihringer, Sabrina Lato +1

We construct a new family of distance-biregular graphs related to hyperovals and a new sporadic example of a distance-biregular graph related to Mathon's perp system. The infinite…

math.CO2026

Induced poset saturation in the hypergrid

R. Altar Ciceksiz, Victor Falgas-Ravry, Sabrina Lato +1

Set $[n] = {1, 2, \dots, n}$ . The hypergrid $[t]^{n}$ is the collection of functions $f : [n] \to [t]$ . We equip it with the natural partial order by letting $f \leq g$ when…

math.CO2024

Cayley Incidence Graphs

ArnbjÃ¶rg SoffÃa ÃrnadÃ³ttir, Alexey Gordeev, Sabrina Lato +2

Evra, Feigon, Maurischat, and Parzanchevski (2023) introduced a biregular extension of Cayley graphs. In this paper, we reformulate their definition and provide some basic properti…

math.CO2024

P-Polynomial and Bipartite Coherent Configurations

Sabrina Lato

We introduce the notion of P-polynomial coherent configurations and show that they can have at most two fibres. We then introduce a class of two-fibre coherent configurations which…