[1]
Y. G. Kovalev, “On the criteria of transversality and disjointness of nonnegative selfadjoint extensions of nonnegative symmetric operators”, Ukr. Mat. Zhurn., vol. 70, no. 4, pp. 495–505, Apr. 2018, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1571