Felipe Flores

activity

20202026

most citedOn the topological ranks of Banach

^{*}

-algebras associated with groups of subexponential growth

1 citations · 3 across the 19 of their papers we have counts for

collaborators

21 papers

math.OA2026

Connes-embeddability and twisted group von Neumann algebras

Soham Chakraborty, Felipe Flores

We call a countable discrete group cocycle-hyperlinear if all its twisted group von Neumann algebras are Connes-embeddable. We show that the class of cocycle-hyperlinear groups inc…

math.RA2026

PHP decompositions and primitivity of group rings for linear groups

Felipe I. Flores

We show that every countable group $G$ that has Ozawa's property $PHP$ and contains a non-abelian free subgroup has the following property: the group ring $K G$ is primitive for…

math.OA2026

Rapid decay and functional calculus in $C^{*}$ -probability spaces

Felipe Flores

Let $(A, ρ)$ be a tracial $C^{*}$ -probability space with the rapid decay property relative to a filtration $L$ . We show that the associated Sobolev algebra $H_{L}^{\infty} (A, ρ)$ i…

math.OA2026

Simplicity and pure infiniteness for $C^{*}$ -algebras associated with stabilizers of boundary actions

Felipe Flores, Joseph Gondek

Given a discrete group $Γ$ acting on a compact space $X$ , and a stabilizer subgroup $Λ \leq Γ$ of $X$ , we use the Rieffel induction of covariant $(Λ, X)$ -representations to study cl…

math.RA2026

Mixed-identity-freeness and primitivity of group rings

Felipe I. Flores

We show that every countable group $G$ that is mixed-identity-free (MIF) and contains a non-abelian free subgroup has the following property: the group ring $K G$ is primitive for a…

math.GR2026

Selfless inclusions arising from commensurator groups of hyperbolic groups

Aaratrick Basu, Felipe Flores

We provide new examples of $C^{*}$ -selfless groups and inclusions. In particular, we prove that the commensurator group $Comm (H)$ of a torsion-free hyperbolic group $H…

math.OA2026

Pureness and stable rank one for reduced twisted group $C^{*}$ -algebras of certain group extensions

Felipe Flores, Mario Klisse, Mícheál Ó Cobhthaigh +1

We present a sufficient condition for a (twisted) group action on a $C^{*}$ -algebra such that the corresponding reduced (twisted) group $C^{*}$ -algebra inclusio…

math.FA2025

Kesten's criterion for discrete probability measure-preserving groupoids

Soham Chakraborty, Milan Donvil, Felipe Flores +1

Inspired by Kesten's criterion for the amenability of groups, we establish a characterization of the amenability of discrete probability measure-preserving groupoids in terms of th…

math.OA2025

Selfless reduced free products and graph products of $C^{*}$ -algebras

Felipe Flores, Mario Klisse, Mícheál Ó Cobhthaigh +1

Under mild assumptions, we show that reduced free products and reduced graph products of $C^{*}$ -algebras are completely selfless, without assuming the rapid decay prop…

math.OA2025

Discrete measured groupoid von Neumann algebras via the Gaussian deformation

Felipe Flores, James Harbour

Given a discrete measured groupoid $G$ , we study properties of the corresponding von Neumann algebra $L (G)$ using the techniques of Popa's deformation/rigidity…

math.FA2025

Harmonic analysis and automatic continuity in the context of generalized differential subalgebras

Felipe I. Flores

For appropriate parameters $k, p, q$ , we introduce and systematically study the class of $(k, p, q)$ -differential subalgebras. This is a vast class of Banach $^{*}$ -algebras defined by t…

math.FA2025

On the continuity of derivations over locally regular Banach algebras

Felipe I. Flores

We study the problem of continuity of derivations over Banach algebras. More specifically, we consider a class of Banach algebras that contain a dense ' $C^{*}$ -like' subalgebra. We d…

math.OA2025★ 1 cited

On the topological ranks of Banach $^{*}$ -algebras associated with groups of subexponential growth

Felipe I. Flores

Let $G$ be a group of subexponential growth and $C \to q G$ a Fell bundle. We show that any Banach $^{*}$ -algebra that sits between the associated $ℓ^{1}$ -algebra…

math.FA2024

A note on finite-dimensional quotients and the problem of automatic continuity for twisted convolution algebras

Felipe I. Flores

In this note, we will show that the twisted convolution algebra $L_{α, ω}^{1} (G, A)$ associated to a twisted action of a locally compact group $G$ on a $C^{*}$ -alge…

math.FA2024

On the continuity of intertwining operators over generalized convolution algebras

Felipe I. Flores

Let $G$ be a locally compact group, $C \to q G$ a Fell bundle and $B = L^{1} (G ∣ C)$ the algebra of integrable cross-sectio…

math.FA2024★ 1 cited

Polynomial growth and functional calculus in algebras of integrable cross-sections

Felipe I. Flores

Let $G$ be a locally compact group with polynomial growth of order $d$ , a polynomial weight $ν$ on $G$ and a Fell bundle $C \to q G$ . We study t…

math.OA2023

Twisted convolution algebras with coefficients in a differential subalgebra

Felipe I. Flores

Let $(G, α, ω, B)$ be a measurable twisted action of the locally compact group $G$ on a Banach $^{*}$ -algebra $B$ and $A$ a differential Banac…

math.OA2022

A criterion for hypersymmetry on discrete groupoids

F. Flores

Given a Fell bundle $C \to q Ξ$ over the discrete groupoid $Ξ$ , we study the symmetry of the associated Hahn algebra $ℓ^{\infty, 1} (Ξ ∣ C)$ in ter…

math.OA2021

Symmetry for algebras associated to Fell bundles over groups and groupoids

Felipe Flores, Diego Jauré, Marius Mantoiu

To every Fell bundle $C$ over a locally compact group $G$ one associates a Banach $^{*}$ -algebra $L^{1} (G ∣ C)$ . We prove that it is symmetric whene…

math.DS2021★ 1 cited

Morphisms of Groupoid Actions and Recurrence

F. Flores, M. Mantoiu

Topological groupoids admit various types of morphisms. We push these notions to the level of continuous groupoid actions to obtain various types of groupoid action morphisms. Some…

math.DS2020

Topological Dynamics of Groupoid Actions

Felipe Flores, Marius Mantoiu

Some basic notions and results in Topological Dynamics are extended to continuous groupoid actions in topological spaces. We focus mainly on recurrence properties. Besides results…

Connes-embeddability and twisted group von Neumann algebras

PHP decompositions and primitivity of group rings for linear groups

Rapid decay and functional calculus in C∗-probability spaces

Simplicity and pure infiniteness for C∗-algebras associated with stabilizers of boundary actions

Mixed-identity-freeness and primitivity of group rings

Selfless inclusions arising from commensurator groups of hyperbolic groups

Pureness and stable rank one for reduced twisted group C∗-algebras of certain group extensions

Kesten's criterion for discrete probability measure-preserving groupoids

Selfless reduced free products and graph products of C∗-algebras

Discrete measured groupoid von Neumann algebras via the Gaussian deformation

Harmonic analysis and automatic continuity in the context of generalized differential subalgebras

On the continuity of derivations over locally regular Banach algebras

On the topological ranks of Banach ∗-algebras associated with groups of subexponential growth

A note on finite-dimensional quotients and the problem of automatic continuity for twisted convolution algebras

On the continuity of intertwining operators over generalized convolution algebras

Polynomial growth and functional calculus in algebras of integrable cross-sections

Twisted convolution algebras with coefficients in a differential subalgebra

A criterion for hypersymmetry on discrete groupoids

Symmetry for algebras associated to Fell bundles over groups and groupoids

Morphisms of Groupoid Actions and Recurrence

Topological Dynamics of Groupoid Actions

Rapid decay and functional calculus in $C^{*}$ -probability spaces

Simplicity and pure infiniteness for $C^{*}$ -algebras associated with stabilizers of boundary actions

Pureness and stable rank one for reduced twisted group $C^{*}$ -algebras of certain group extensions

Selfless reduced free products and graph products of $C^{*}$ -algebras

On the topological ranks of Banach $^{*}$ -algebras associated with groups of subexponential growth