Published: 2023-02-09

Flat portions on the boundary of the numerical range of a 5 × 5 companion matrix

Swastika Saha Mondal, Sarita Ojha, Riddhick Birbonshi

17-32

The maximum spectral radius of graphs with a large core

Xiaocong He, Lihua Feng, Dragan Stevanović

78-89

The inverse Horn problem

João Filipe Queiró, Ana Paula Santana

90-93

The Moore-Penrose inverse of the distance matrix of a helm graph

I. Jeyaraman, T. Divyadevi, R. Azhagendran

94-109

On low-dimensional partial isometries

Qixiao He, Ilya Spitkovsky, Ibrahim Suleiman

124-135

Products of skew-involutions

Jesus Paolo Joven, Agnes Paras

136-150

On the numerical range of Kac-Sylvester matrices

Natália Bebiano, Rute Lemos, Graça Soares

242-259

Multi-alternating sign matrices

Richard Brualdi, Geir Dahl

260-281