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Discrete-continuous boundary value problems for quasi-differential equations of even order. (Ukrainian) Zbl 1098.47502
In the paper linear quasidifferential equations of arbitrary even order are considered the coefficients and right-side parts of which are generalized functions. The authors determine fundamental spectral properties of the problems of eigenvalues and define structure of the generalized Green function.
MSC:
47A25 Spectral sets of linear operators
47J99 Equations and inequalities involving nonlinear operators
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