Bilichenko, R.O., Oles Honchar Dnipropetrovsk National University, Ukraine
-
Vol 20 (2012) - Articles
Approximation of unbounded functionals by the bounded ones in Hilbert space
Abstract PDF (Русский) -
Vol 24 (2016) - Articles
Approximation of unbounded functional, defined by grades of normal operator, on the class of elements of Hilbert space
Abstract PDF (Русский) -
Vol 19 (2011) - Articles
Inequality of Taikov type for powers of normal operators in Hilbert space
Abstract PDF (Русский) -
Vol 18 (2010) - Articles
Some problems of approximation theory for powers of normal operators in Hilbert space
Abstract PDF (Русский) -
Vol 17 (2009) - Articles
The best approximation of classes, defined by powers of self-adjoint operators acting in Hilbert space, by other classes
Abstract PDF (Русский)
Registered in
Not much? See «Misleading Metrics» [web-archive] (by J. Beall), «The story of fake impact factor companies ...» (by M. Jalalian); on the other hand, see «Citation Statistics» (by R. Adler, J. Ewing, P. Taylor)