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Inequalities for the block projection operatorsOriginally studied by Gohberg and Krein, the block projection operators admit a natural extension

Block projection operators in normed solid spaces of measurable operators. In the semifinite case we show that a block projection operator is a linear positive contraction on a wide class

Inequalities for the block projection operatorsOriginally studied by Gohberg and Krein, the block projection operators admit a natural extension

Block projection operators in normed solid spaces of measurable operators. In the semifinite case we show that a block projection operator is a linear positive contraction on a wide class

On invertibility of some operator sums of difference of two projections are obtained. We prove that block projection operators preserve invertibility

On invertibility of some operator sums of difference of two projections are obtained. We prove that block projection operators preserve invertibility

Characterization of certain traces on von Neumann algebras{A}\to \mathcal{A}$ being a block projection operator given by the formula $\mathcal{P}_n(X)=\sum_{k=1}^n P

Block projection operators in normed solid spaces of measurable operatorsWe investigate a block projection operators in normed solid spaces of measurable operators

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

URBAN BLOCKS AND ARCHITECTURAL TYPOLOGY IN THE MILANESE CONTEXTThe paper concerns the analysis of a large number of urban blocks in the central area of Milan

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