A. Chirvasitu

activity

20152024

most citedThe set-theoretic Yang-Baxter equation, Kimura semigroups and functional graphs

1 citations · 1 across the 5 of their papers we have counts for

collaborators

8 papers

math.FA2024

Single and multi-valued Hilbert-bundle renormings

Alexandru Chirvasitu

We prove that subhomogeneous continuous Banach bundles over compact metrizable spaces are equivalent to Hilbert bundles, while examples show that the metrizability assumption canno…

math.FA2023

Rich lattices of multiplier topologies

Alexandru Chirvasitu

Each symmetrically-normed ideal $I$ of compact operators on a Hilbert space $H$ induces a multiplier topology $μ_{I}^{*}$ on the algebra $B (H)$ of bound…

math.CO2023

Quadratic rotation symmetric Boolean functions

Alexandru Chirvasitu, Thomas W. Cusick

Let $(0, a_{1}, \dots, a_{d - 1})_{n}$ denote the function $f_{n} (x_{0}, x_{1}, \dots, x_{n - 1})$ of degree $d$ in $n$ variables generated by the monomial $x_{0} x_{a_{1}} \dots x_{a_{d - 1}}$ and…

math.QA2023★ 1 cited

The set-theoretic Yang-Baxter equation, Kimura semigroups and functional graphs

A. L. Agore, A. Chirvasitu, G. Militaru

We prove that the category of solutions of the set-theoretic Yang-Baxter equation of Frobenius-Separability (FS) type is equivalent to the category of pointed Kimura semigroups. As…

math.RT2020

Universal tensor categories generated by dual pairs

Alexandru Chirvasitu, Ivan Penkov

Let $V_{*} \otimes V \to C$ be a non-degenerate pairing of countable-dimensional complex vector spaces $V$ and $V_{*}$ . The Mackey Lie algebra $\mathfrak{g}=\mathfrak{gl}…

cs.IT2019

Symbolic dynamics and rotation symmetric Boolean functions

Alexandru Chirvasitu, Thomas Cusick

We identify the weights $w t (f_{n})$ of a family ${f_{n}}$ of rotation symmetric Boolean functions with the cardinalities of the sets of $n$ -periodic points of a finite-type shift, re…

cs.IT2019

Affine equivalence for quadratic rotation symmetric Boolean functions

Alexandru Chirvasitu, Thomas W. Cusick

Let $f_{n} (x_{0}, x_{1}, \dots, x_{n - 1})$ denote the algebraic normal form (polynomial form) of a rotation symmetric (RS) Boolean function of degree $d$ in $n \geq d$ variables and let…

math-ph2015

A Kochen-Specker theorem for integer matrices and noncommutative spectrum functors

Michael Ben-Zvi, Alexander Ma, Manuel Reyes

We investigate the possibility of constructing Kochen-Specker uncolorable sets of idempotent matrices whose entries lie in various rings, including the rational numbers, the intege…