E. Kochubinska

collaborators

4 papers

math.CO2020

Combinatorics of partial wreath power of finite inverse symmetric semigroup $I S_{d}$

Eugenia Kochubinska

We study some combinatorial properties of partial wreath $k$ -th power of the semigroup $I S_{d}$ . In particular, we calculate its order, the number of idempotents and the nu…

math.GR2020

Spectrum of partial automorphisms of regular rooted tree

Eugenia Kochubinska

We study properties of eigenvalues of a matrix associated with a randomly chosen partial automorphism of a regular rooted tree. We show that asymptotically, as the numbers of level…

math.GR2020

Spectral properties of partial automorphisms of binary rooted tree

Eugenia Kochubinska

We study asymptotics of the spectral measure of a randomly chosen partial automorphism of a rooted tree. To every partial automorphism $x$ we assign its action matrix $A_{x}$ . It is…

math.GR2020

On isomorphisms of $R$ - and $L$ -cross-sections of wreath products of finite inverse symmetric semigroups

Eugenia Kochubinska

We classify $R$ - and $L$ -cross-sections of wreath products of finite inverse symmetric semigroups $I S_{m} ≀_{p} I S_{n}$ up to isomorphism. We sh…

Combinatorics of partial wreath power of finite inverse symmetric semigroup ISd​

Spectrum of partial automorphisms of regular rooted tree

Spectral properties of partial automorphisms of binary rooted tree

On isomorphisms of R- and L-cross-sections of wreath products of finite inverse symmetric semigroups

Combinatorics of partial wreath power of finite inverse symmetric semigroup $I S_{d}$

On isomorphisms of $R$ - and $L$ -cross-sections of wreath products of finite inverse symmetric semigroups