Deep Bhattacharjee

collaborators

2 papers

math.NT2026

Spectral Algebras of Abelian Cayley Graphs

Deep Bhattacharjee, Priyabrata Mandal, Ushashi Bhattacharya

Let $G$ be a finite abelian group of order $N$ , $S \subseteq G ∖ {0}$ a symmetric connection set, and $K$ a field with $c ha r (K) ∤ N$ . The spectral algebra $\mathscr{A…

math.AC2025

Homomorphism Counts Quadratic Residues

Priyabrata Mandal, Sonu Kumar, Deep Bhattacharjee

We prove that the ratio $ϱ (n) = ϕ (n) / 2^{ω (n)}$ of surjective group to ring homomorphism counts between finite cyclic rings admits three simultaneous interpretations that have n…