Md Amir Hossain

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20232026

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math.OA2026

Ground states on the $\mathrm{C}^*$-algebras of Fell bundles over étale groupoids

Md Amir Hossain

Let $p\colon \mathcal{A}\to G$ be a Fell bundle over a locally compact Hausdorff second countable étale groupoid $G$ and let $\mathrm{C}^*(G; \mathcal{A})$ be the associated…

math.OA2026

Inclusions of Fell bundles $C^{*}$ -algebras and coaction crossed products

Md Amir Hossain

Let $p : A \to G$ be a Fell bundle over a locally compact Hausdorff second countable groupoid $G$ equipped with a Haar system, and let $Γ$ be a discrete group. Given…

math.OA2026

On the Haagerup property for partial crossed products

Md Amir Hossain, Chaitanya J. Kulkarni

Let $(A, G, α)$ be a partial dynamical system and let $A ⋊_{α, r} G$ denote the associated reduced partial crossed product. In this article, we introduce the Haagerup property fo…

math.OA2026

Some remarks on Reduced $C^{*}$ -algebras of semigroup dynamical systems and product systems

Md Amir Hossain, S. Sundar

We study the exactness of the reduced crossed product of a semigroup dynamical system and the reduced $C^{*}$ -algebra of a product system. We show that for a semigroup dynamical sy…

Ground states on the \(\mathrm{C}^*\)-algebras of Fell bundles over étale groupoids

Inclusions of Fell bundles C∗-algebras and coaction crossed products

On the Haagerup property for partial crossed products

Some remarks on Reduced C∗-algebras of semigroup dynamical systems and product systems

Inclusions of Fell bundles $C^{*}$ -algebras and coaction crossed products

Some remarks on Reduced $C^{*}$ -algebras of semigroup dynamical systems and product systems