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Block projection operators in normed solid spaces of measurable operatorsWe prove a Hermitian analog of the well-known operator triangle inequality for vonNeumann algebras

Hardy type inequalities in the category of hausdorff operatorsClassical Hardy’s inequalities are concerned with the Hardy operator and its adjoint, the Bellman

Differences of idempotents in C*-algebras = Q* and I is the identity operator in H. If U = P − Q is an isometry then U = U* is unitary and Q = I

On invertibility of some operator sumsWe study invertibility of some sums of linear bounded operators on Hilbert space (Theorem 1). A

Analysis of retrial queue with heterogeneous servers and markovian arrival process by multi-dimensional continuous-time Markov chain which belongs to the class of asymptotically quasi-Toeplitz

A non-commutative version of Nikishin's theorem algebra, L1(τ) be the space of integrable self-adjoint operators, and S be the space of self

Eta-Invariants for Parameter-Dependent Operators Associated with an Action of a Discrete Group operators associated with an isometric action of a discrete group of polynomial growth on a smooth closed

Integrable products of measurable operators operators, assume also that M is the *-algebra of all τ-measurable operators. We give the sufficient

Generalized Sobolev–Morrey estimates for hypoelliptic operators on homogeneous groups to the family of dilations (δλ) λ>. Consider the following hypoelliptic operator with drift on GL=∑i,j=1maij

AN INDEX FORMULA FOR GROUPS OF ISOMETRIC LINEAR CANONICAL TRANSFORMATIONSWe define a representation of the unitary group U (n) by metaplectic operators acting on L2(Rn

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