S. Simons, ANALYTICAL INVERSION OF A PARTICULAR TYPE OF BANDED MATRIX - COMMENT, Journal of physics. A, mathematical and general, 30(2), 1997, pp. 755-763
An alternative approach to that described in [1] is developed for anal
ytically inverting a particular type of tridiagonal matrix. The techni
que is then extended to deal with a general banded matrix in which dia
gonal elements are identical and are flanked in each row by the same s
et of quantities.