E. Kreines

collaborators

3 papers

math.GT2026

Almost Regular Coverings of the Sphere: Realizability. I. Tetrahedral Case

Nikolai M. Adrianov, Elena M. Kreines

We prove the realizability of genus- $0$ branch data of the form $(2^{r}, a ∣ 3^{s}, b ∣ 3^{t}, c)$ and $(2^{r}, a ∣ 3^{s} ∣ 3^{t}, b, c)$ , where $a$ , $b$ , $c$ are…

math.CO2026

Hamiltonian Sets of Polygonal Paths in Assembly Graphs

A. Guterman, N. Jonoska, E. Kreines +2

We provide four equivalent combinatorial conditions for a simple assembly graph (rigid vertex graph where all vertices are of degree 1 or 4) to have the largest number of Hamiltoni…

math.AG2018

Poincare polynomial for the moduli space $M_{0, n} (C)$ and the number of points in $M_{0, n} (F_{q})$

N. Amburg, E. Kreines, G. Shabat

We obtain a combinatorial proof that the number of points of the space $M_{0, n} (F_{q})$ satisfies the recurrent formula for Poincare polynomials of th…

Almost Regular Coverings of the Sphere: Realizability. I. Tetrahedral Case

Hamiltonian Sets of Polygonal Paths in Assembly Graphs

Poincare polynomial for the moduli space M0,n​​(C) and the number of points in M0,n​​(Fq​)

Poincare polynomial for the moduli space $M_{0, n} (C)$ and the number of points in $M_{0, n} (F_{q})$