Submitted:
10 September 2021
Posted:
14 September 2021
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Abstract
In this work, we studied the Green’s functions of the second order differential operators with involution. Uniform equiconvergence of spectral expansions related to the second-order differential operators with involution is obtained. Basicity of eigenfunctions of the second-order differential operator operator with complex-valued coefficient is established.
Keywords:
differential equations
; involution
; boundary value problems
; Green’s function
; eigen6 function expansions
; equiconvergence
; Riesz basis
; spectral properties
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