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Proper subspaces and compatibility
(Polish Acad Sciences Inst Mathematics, 2015-12)
Let E be a Banach space contained in a Hilbert space L. Assume thatthe inclusion is continuous with dense range. Following the terminology of Gohberg andZambicki, we say that a bounded operator on E is a proper operator ...
On the thinness and proper thinness of a graph
(Elsevier Science, 2019-05)
Graphs with bounded thinness were defined in 2007 as a generalization of interval graphs. In this paper we introduce the concept of proper thinness, such that graphs with bounded proper thinness generalize proper interval ...
The clique operator on circular-arc graphs
(Elsevier Science, 2010-06)
A circular-arc graphG is the intersection graph of a collection of arcs on the circle and such a collection is called a model of G. Say that the model is proper when no arc of the collection contains another one, it is ...
Fully Dynamic Recognition of Proper Circular-Arc Graphs
(Springer, 2015-04)
We present a fully dynamic algorithm for the recognition of proper circular-arc (PCA) graphs. The allowed operations on the graph involve the insertion and removal of vertices (together with its incident edges) or edges. ...
Um estudo sobre Proper Orthogonal Decomposition: fundamentação teórica
(Universidade Federal de São Paulo (UNIFESP), 2020-07-28)
The main objective of this work is to study the mathematical foundations of the Proper Orthogonal Decomposition (POD) method, the essence of which is to provides an orthogonal basis for representing a given set of data in ...
Approximation and the n-Berezin transform of operators on the Bergman space
(De Gruyter, 2005-07)
To any bounded operator S on the Bergman space La2 we associate a sequence of linear transforms Bn(S ) ∈ L∞(D), where n ≧ 0, and prove that the Toeplitz operators article image tend to S for some especial classes of operators ...
Operational strategies for long-term biohydrogen production from sugarcane stillage in a continuous acidogenic packed-bed reactor
(2016-05-25)
The use of packed-bed reactors for biohydrogen production often results in performance losses in the short term because of the negative effects of operational factors, such as biomass accumulation and inadequate pH conditions. ...
On restricted diagonalization
(Academic Press Inc Elsevier Science, 2021-06)
Let H be a separable infinite-dimensional complex Hilbert space, B(H) the algebra of bounded linear operators acting on H and J a proper two-sided ideal of B(H). Denote by UJ(H) the group of all unitary operators of the ...