activity
20152026
most citedThe Podles sphere as a spectral metric space

21 citations · 47 across the 23 of their papers we have counts for

collaborators

26 papers

math.OA2026

Rapidly growing AF algebras

Konrad Aguilar, Stephan Ramon Garcia, Evelyne Knight +2

We introduce certain families of AF algebras associated to Bratteli diagrams arising from numerical semigroup theory, a branch of combinatorics. Curry-Schoenberg B-splines, staples…

math.OA2026

The Bures metric and the quantum metric on the density space of a C*-algebra: the non-unital case

Konrad Aguilar, Karina Behera, Katrine von Bornemann Hjelmborg +4

Building off work of Farenick and Rahaman, we extend the definition of the density space and the Bures metric to the setting of non-unital C*-algebras equipped with a faithful trac…

math.OA2025

Spectral Triples on a non-standard presentation of Effros-Shen AF algebras

Konrad Aguilar, Samantha Brooker, Jack Spielberg

The Effros-Shen algebra corresponding to an irrational number can be described by an inductive sequence of direct sums of matrix algebras, where the continued fraction expansio…

cs.IT2024

Locally recoverable algebro-geometric codes from projective bundles

Konrad Aguilar, Angelynn Álvarez, René Ardila +3

A code is locally recoverable when each symbol in one of its code words can be reconstructed as a function of other symbols. We use bundles of projective spaces over a line to…

math.OA2024

On the Bures metric, C*-norm, and the quantum metric

Konrad Aguilar, Karina Behera, Tron Omland +1

We prove that the topology on the density space with respect to a unital C*-algebra and a faithful induced by the C*-norm is finer than the Bures metric topology. We also provide a…

math.OA2024

Domains of quantum metrics on AF algebras

Konrad Aguilar, Katrine von Bornemann Hjelmborg, Frederic Latremoliere

Given a compact quantum metric space (A, L), we prove that the domain of L coincides with A if and only if A is finite dimensional. We then show how one can explicitly build many q…

math.OA2023

Quantum Gromov-Hausdorff propinquity convergence of Christensen-Ivan quantum metrics on AF algebras

Clay Adams, Konrad Aguilar, Esteban Ayala +2

We provide convergence in the quantum Gromov-Hausdorff propinquity of Latrémolière of some sequences of infinite-dimensional Leibniz compact quantum metric spaces of Rieffel given…

math.OA2023

The Hamming Distance and the Fell Topology on AF Algebras

Konrad Aguilar, Zoë X. Batterman

We introduce a new metric on the ideal space of an AF algebra that metrizes the Fell topology. The novelty of this metric lies in the use of a Hamming distance type metric in its c…

math.OA2023

The strongly Leibniz property and the Gromov--Hausdorff propinquity

Konrad Aguilar, Stephan Ramon Garcia, Elena Kim +1

We construct a new version of the dual Gromov--Hausdorff propinquity that is sensitive to the strongly Leibniz property. In particular, this new distance is complete on the class o…

math.OA2022

The Fell topology and the modular Gromov-Hausdorff propinquity

Konrad Aguilar, Jiahui Yu

Given a unital AF-algebra equipped with a faithful tracial state, we equip each (norm-closed two-sided) ideal of with a metrized quantum vector bundle structure, when canon…

math.OA2021

Frobenius-Rieffel norms on finite-dimensional C*-algebras

Konrad Aguilar, Stephan Ramon Garcia, Elena Kim

In 2014, Rieffel introduced norms on certain unital C*-algebras built from conditional expectations onto unital C*-subalgebras. We begin by showing that these norms generalize the…

math.OA2021

Compact Quantum Metric Spaces from Free Graph Algebras

Konrad Aguilar, Michael Hartglass, David Penneys

Starting with a vertex-weighted pointed graph , we form the free loop algebra defined in Hartglass-Penneys' article on canonical -algebras assoc…

math.CO2021

Norms on complex matrices induced by complete homogeneous symmetric polynomials

Konrad Aguilar, Ángel Chávez, Stephan Ramon Garcia +1

We introduce a remarkable new family of norms on the space of complex matrices. These norms arise from the combinatorial properties of symmetric functions, and their c…

math.OA2021

Polynomial approximation of quantum Lipschitz functions

Konrad Aguilar, Jens Kaad, David Kyed

We prove an approximation result for Lipschitz functions on the quantum sphere , from which we deduce that the two natural quantum metric structures on have quantum…

math.OA2021★ 14 cited

The Podles spheres converge to the sphere

Konrad Aguilar, Jens Kaad, David Kyed

We prove that the Podles spheres converge in quantum Gromov-Hausdorff distance to the classical 2-sphere as the deformation parameter tends to 1. Moreover, we construct…

math.OA2020

Bunce-Deddens algebras as quantum Gromov-Hausorff distance limits of circle algebras

Konrad Aguilar, Frederic Latremoliere, Timothy Rainone

We show that Bunce-Deddens algebras, which are AT-algebras, are also limits of circle algebras for Rieffel's quantum Gromov-Hausdorff distance, and moreover, form a continuous fami…

math.OA2019★ 2 cited

A quantum metric on the Cantor Space

Konrad Aguilar, Alejandra López

The first author and Latrémolière had introduced a quantum metric (in the sense of Rieffel) on the algebra of complex-valued continuous functions on the Cantor space. We show that…

math.OA2019

Quantum metrics on the tensor product of a commutative C*-algebra and an AF C*-algebra

Konrad Aguilar

Given a compact metric space X and a unital AF algebra A equipped with a faithful tracial state, we place quantum metrics on the tensor product of C(X) and A given established quan…

math.OA2019

Quantum metrics from the trace on full matrix algebras

Konrad Aguilar, Samantha Brooker

We prove that, in the sense of the Gromov-Hausdorff propinquity, certain natural quantum metrics on the algebras of -matrices are separated by a positive distance when n…

math.OA2018★ 1 cited

Inductive limits of C*-algebras and compact quantum metrics spaces

Konrad Aguilar

Given a unital inductive limit of C*-algebras for which each C*-algebra of the inductive sequence comes equipped with a compact quantum metric of Rieffel, we produce sufficient con…

math.OA2018★ 21 cited

The Podles sphere as a spectral metric space

Konrad Aguilar, Jens Kaad

We study the spectral metric aspects of the standard Podles sphere, which is a homogeneous space for quantum SU(2). The point of departure is the real equivariant spectral triple i…

math.OA2017

Standard homogeneous C*-algebras as compact quantum metric spaces

Konrad Aguilar, Tristan Bice

Given a compact metric space X and a unital C*-algebra A, we introduce a family of seminorms on the C*-algebra of continuous functions from X to A, denoted C(X, A), induced by clas…

math.OA2017

Some applications of conditional expectations to convergence for the quantum Gromov-Hausdorff propinquity

Konrad Aguilar, Frederic Latremoliere

We prove that all the compact metric spaces are in the closure of the class of full matrix algebras for the quantum Gromov-Hausdorff propinquity. We also show that given an action…

math.OA2016★ 4 cited

AF algebras in the quantum Gromov-Hausdorff propinquity space

Konrad Aguilar

For unital AF algebras with faithful tracial states, we provide criteria for convergence in the quantum Gromov-Hausdorff propinquity. For any unital AF algebra, we introduce new Le…