On the Bari basis property for even-order differential operators with involution

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Dmitry Polyakov


By using the method of similar operators we study even-order differential operators with involution. The domain of these operators are defined by periodic and antiperiodic~boundary conditions. We obtain estimates for spectral projections and we prove the Bari basis property for the system of eigenfunctions and associated functions

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Polyakov, D. (2022). On the Bari basis property for even-order differential operators with involution. Tamkang Journal of Mathematics, 54(4), 339–351. https://doi.org/10.5556/j.tkjm.54.2023.4899


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