2 papers
math.CO2025
Sufficient conditions for the variation of toughness under the distance spectral in graphs involving minimum degree
Peishan Li
The concept of graph toughness was first introduced in 1973. In 1995, scholars first explored the lower bound of the toughness of connected d-regular graphs with respect to d and t…
math.CA2024
The structure of tiles in and
Shilei Fan, Mamateli Kadir, Peishan Li
In this paper, we provide a geometric characterization of tiles in the finite abelian groups \( \mathbb{Z}_{p^n} \times \mathbb{Z}_q \) and \( \mathbb{Z}_{p^n} \times \mathbb{Z}_p…