К теории Бирмана–Крейна–ВишикаLet
A ≥
mA > 0 be a closed positive definite
symmetric operator in a
Inequalities for the block projection operatorsOriginally studied by Gohberg and Krein, the block projection
operators admit a natural extension
Commutation of Projections and Characterization of Traces on von Neumann Algebras. III commutation conditions for
nonnegative operators and projections in terms of
operator inequalities
SOME CLASSES OF OPERATORS IN GENERAL MORREY-TYPE SPACES, such as the embedding and
symmetrization operators, Hardy-Littlewood maximal
operators, generalized Riesz potentials
Weighted inequalities for Hardy-type operators on the cone of decreasing functions in an Orlicz space enables passing to modular inequalities for modified
operators on the cone of all
nonnegative functions
On the index of elliptic operators associated with a diffeomorphism of a manifoldThe index of elliptic
operators associated with a diffeomorphism of a manifold is calculated
EXISTENCE OF OPTIMAL DOMAINS IN PROBLEMS WITH B-SYMMETRICAL B-POSITIVE OPERATORSEXISTENCE OF OPTIMAL DOMAINS IN PROBLEMS WITH B-
SYMMETRICAL B-POSITIVE
OPERATORS