ON MULTIPLE EIGENFUNCTION EXPANSION OF AN OPERATOR PENCIL WITH COMPLEX ALMOST PERIODIC POTENTIALS
SH. M. ANNAGHIILI · Stochastic Modelling & Computational Sciences · 2023
In the paper, the multiple eigenfunction expansion of the operator pencil on a whole axis is considered.The coefficients of the considered operators are taken as complex and almost periodic.The eigenfunction expansion of the resolvent is obtained in terms of continuous spectrum eigenfunction and the multiple expansion of arbitrary test functions.