- negative entrys
- отрицательные записи (записи со знаком минус)
Англо-русский словарь экономических терминов. 2001.
Англо-русский словарь экономических терминов. 2001.
Extensions of symmetric operators — In functional analysis, one is interested in extensions of symmetric operators acting on a Hilbert space. Of particular importance is the existence, and sometimes explicit constructions, of self adjoint extensions. This problem arises, for… … Wikipedia