Abderrahim Boussaïri

activity

20122021

collaborators

4 papers

math.CO2021

$k$ -spectrally monomorphic tournaments

Abderrahim Boussaïri, Imane Souktani, Imane Talbaoui +1

A tournament is $k$ -spectrally monomorphic if all the $k \times k$ principal submatrices of its adjacency matrix have the same characteristic polynomial. Transitive $n$ -tournaments…

math.CO2016

A matrix description of weakly bipartitive and bipartitive families

Edward Bankoussou-mabiala, Abderrahim Boussaïri, Abdelhak Chaïchaâ +1

The notions of weakly bipartitive and bipartitive families were introduced by Montgolfier (2003) as a general tool for studying some decomposition of graphs and other combinatorial…

math.CO2014

Skew-symmetric matrices and their principal minors

A. Boussairi, B. Chergui

Let $V$ be a nonempty finite set and $A = (a_{ij})_{i, j \in V}$ be a matrix with entries in a field $K$ . For a subset $X$ of $V$ , we denote by $A [X]$ the submatrix of $A$ hav…

math.CO2012

The {-3}-reconstruction and the {-3}-self duality of tournaments

Mouna Achour, Youssef Boudabbous, Abderrahim Boussairi

Let T = (V,A) be a (finite) tournament and k be a non negative integer. For every subset X of V is associated the subtournament T[X] = (X,A\cap (X \timesX)) of T, induced by X. The…

k-spectrally monomorphic tournaments

A matrix description of weakly bipartitive and bipartitive families

Skew-symmetric matrices and their principal minors

The {-3}-reconstruction and the {-3}-self duality of tournaments

$k$ -spectrally monomorphic tournaments