V. Novikov
Search this author in Google Scholar
Articles: 1
Localization principles for Schrödinger operator with a singular matrix potential
Vladimir Mikhailets, Aleksandr Murach, Viktor Novikov
MFAT 23 (2017), no. 4, 367-377
367-377
We study the spectrum of the one-dimensional Schrödinger operator $H_0$ with a matrix singular distributional potential $q=Q'$ where $Q\in L^{2}_{\mathrm{loc}}(\mathbb{R},\mathbb{C}^{m})$. We obtain generalizations of Ismagilov's localization principles, which give necessary and sufficient conditions for the spectrum of $H_0$ to be bounded below and discrete.