@Article{Malejki2014, author = "Malejki, Maria", title = "Asymptotics of the discrete spectrum for complex Jacobi matrices", journal = "Opuscula Math.", year = "2014", volume = "34", number = "1", pages = "139--160", doi = "http://dx.doi.org/10.7494/OpMath.2014.34.1.139", url = "http://dx.doi.org/10.7494/OpMath.2014.34.1.139", abstract = "The spectral properties and the asymptotic behaviour of the discrete spectrum for a special class of infinite tridiagonal matrices are given. We derive the asymptotic formulae for eigenvalues of unbounded complex Jacobi matrices acting in \(l^2(\mathbb{N})\).", keywords = "tridiagonal matrix, complex Jacobi matrix, discrete spectrum, eigenvalue, asymptotic formula, unbounded operator, Riesz projection", issn = "1232-9274" }