In this paper, we consider the continuity of the band functions and Bloch functions of the differential operators generated by the differential expressions with periodic matrix coefficients.
Differential operator, band functions, Bloch functions
"On the band functions and Bloch functions,"
Turkish Journal of Mathematics: Vol. 47:
1, Article 16.
Available at: https://journals.tubitak.gov.tr/math/vol47/iss1/16