4 citations · 4 across the 3 of their papers we have counts for
3 papers
math.CO2024
New boundes for Sombor index of Graphs
Maryam Mohammadi, Hasan Barzegar
In this paper, we find some bounds for the Sombor index of the graph G by triangle inequality, arithmetic index, geometric index, forgotten index (F(G)), arithmetic-geometric (AG)…
gr-qc2023★ 4 cited
Structure of gravastars in the context of massive gravity
H. Barzegar, B. Eslam Panah, G. H. Bordbar +1
In this paper, we investigate a new model of dimensional () gravitational vacuum stars (gravastars) with an isotropic matter distribution anti-de Sitter (AdS) spacetime…
math.RA2019
When a quotient of a distributive lattice is a boolean algebra
Hasan Barzegar
In this article, we introduce a lattice congruence with respect to a nonempty ideal of a distributive lattice and a derivation on denoted by . We investigate…