Operators and Matrices · Volume 18, Issue 1 On the properties of the systems of root vector functions of Dirac-type operator with summable potential 18-15 Pages 235-256 DOI 10.7153/oam-2024-18-15 Downloads Short PDF Full PDF PNG Authors Vali M. Kurbanov Elchin J. Ibadov Keywords Dirac operator root vector functions unconditional basis property Bessel property Subject classes 34L10 34L20 34B05 34B24