Elena Rubei

activity

19982025

most citedAffine subspace of matrices with constant rank

6 citations · 30 across the 24 of their papers we have counts for

collaborators

Showing 2016 · math.COShow all

4 papers · 2 filters

math.CO2016★ 1 cited

Graphlike families of multiweights

Agnese Baldisserri, Elena Rubei

Let $G = (G, w)$ be a weighted graph , that is, a graph $G$ endowed with a function $w$ from the edge set of $G$ to the set of real numbers; for any subset $S$ of the vertex se…

math.CO2016

Families of $2$ -weights of some particular graphs

Agnese Baldisserri, Elena Rubei

Let $G = (G, w)$ be a positive-weighted graph, that is a graph $G$ endowed with a function $w$ from the edge set of $G$ to the set of positive real numbers; for any distinct v…

math.CO2016

A characterization of dissimilarity families of trees

Agnese Baldisserri, Elena Rubei

Let $T = (T, w)$ be a weighted finite tree with leaves $1, ..., n$ .For any $I := {i_{1}, ..., i_{k}} \subset {1, ..., n}$ , let $D_{I} (T)$ be the weight of the minimal subtree…

math.CO2016

Treelike quintet systems

Simone Calamai, Elena Rubei

Let $X$ be a finite set. We give criterion to say if a system of trees $P = {T_{i}}_{i}$ with leaf sets $L (T_{i}) \in (5 X)$ can be amalgamated into a supertree, that is,…

Graphlike families of multiweights

Families of 2-weights of some particular graphs

A characterization of dissimilarity families of trees

Treelike quintet systems

Families of $2$ -weights of some particular graphs