G. Fikioris

activity

20152026

most citedThe Uniqueness Theorem for Nonlocal Hydrodynamic Media

3 citations · 6 across the 11 of their papers we have counts for

collaborators

Showing 2021Show all

2 papers · 1 filter

math.CO2021

A subsemigroup of the rook monoid

George Fikioris, Giannis Fikioris

We define a subsemigroup $S_{n}$ of the rook monoid $R_{n}$ and investigate its properties. To do this, we represent the nonzero elements of $S_{n}$ (which are $n \times n$ matrices) via…

math.SP2021

Eigenvalue contour lines of Kac-Murdock-Szego matrices with a complex parameter

George Fikioris, Christos Papapanos

A previous paper studied the so-called borderline curves of the Kac--Murdock--Szegő matrix $K_{n} (ρ) = [ρ^{∣ j - k ∣}]_{j, k = 1}^{n}$ , where $ρ \in C$ . These are the leve…