@article{А.Sh. Shaldanbayev_А.А. Shaldanbayevа_B.А. Shaldanbay_2019, title={ON SQUARE ROOT OF STURM-LIUVILLE OPERATOR}, url={https://journals.nauka-nanrk.kz/physics-mathematics/article/view/1640}, abstractNote={<p>In this paper, we find square root of the Sturm – Liouville operator and show that this root is a<br>functional-differential operator of first-order. Form of the corresponding boundary problem of this functional -<br>differential equation is found. As a suggestive idea, we use one Putnam theorem. Boundary value conditions of the<br>Sturm-Liouville operator have a very special form, and they are dictated by the method of investigation. The found<br>unitary operator generalizes the known momentum operator.</p>}, number={3}, journal={Известия НАН РК. Серия физико-математическая}, author={А.Sh. Shaldanbayev and А.А. Shaldanbayevа and B.А. Shaldanbay}, year={2019}, month={июн.}, pages={97–113} }