ЗМІСТ

Attas K., Boussaïri A., Zaidi M.
About the spectra of a real nonnegative matrix and its signings

Choi C., Kim S., Seo H.
A filtration on the ring of Laurent polynomials and representations of the general linear Lie algebra

Fasfous W.N.T., Sharafdini R., Nath R.K.
Common neighborhood spectrum of commuting graphs of finite groups

Mallik S., Yildiz B.
Isodual and self-dual codes from graphs

Protasov I., Protasova K.
Coarse structures on groups defined by conjugations

Reyes A., Suárez H.
Skew PBW extensions over symmetric rings

Rodríguez-Nieto J.G., Salazar-Díaz O.P., Velásquez R.
The structure of g-digroup actions and representation theory

Singh G.
Diagonal torsion matrices associated with modular data

Tchamna S.
Cancellation ideals of a ring extension

Zhuchok Yu.V.
Free abelian trioids