Alexandru Chirvăsitu

activity

20102024

most citedOn quantum symmetries of compact metric spaces

9 citations · 13 across the 16 of their papers we have counts for

collaborators

16 papers

math.FA2024

Symmetric monoidal categories of conveniently-constructible Banach bundles

Alexandru Chirvasitu

We show that a continuously-normed Banach bundle $E$ over a compact Hausdorff space $X$ whose space of sections is algebraically finitely-generated (f.g.) over $C (X)$ is…

math.OA2024

Normal approximations of commuting square-summable matrix families

Alexandru Chirvasitu

For any square-summable commuting family $(A_{i})_{i \in I}$ of complex $n \times n$ matrices there is a normal commuting family $(B_{i})_{i}$ no farther from it, in squared normalized $\e…

math.AG2024

Symplectic leaves in projective spaces of bundle extensions

Alexandru Chirvasitu

Fix a stable degree- $n$ rank- $k$ bundle $F$ on a complex elliptic curve for (coprime) $1 \leq k < n \geq 3$ . We identify the symplectic leaves of the Poisson structure introduc…

math.GR2023

Extensible endomorphisms of compact groups

Alexandru Chirvasitu

We show that the endomorphisms of a compact connected group that extend to endomorphisms of every compact overgroup are precisely the trivial one and the inner automorphisms; this…

math.AC2023

High powers in endomorphism rings over Dedekind domains

Alexandru Chirvasitu

Let $A$ be a Dedekind domain and $T$ an endomorphism of a finitely-generated projective $A$ -module. If $T$ is an $s^{t h}$ power in $End_{A} (M)$ …

math.AG2023

Compactified symplectic leaves in bundle moduli spaces

Alexandru Chirvasitu

Let $E$ be a rank-2 vector bundle over an elliptic curve $E$ , decomposable as a sum of line bundles of degrees $d^{'} > d \geq 2$ , and $L$ the determinant of $\mathcal…