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Dominated Operators (Paperback, Softcover reprint of hardcover 1st ed. 2000)
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Dominated Operators (Paperback, Softcover reprint of hardcover 1st ed. 2000)
Series: Mathematics and Its Applications, 519
Expected to ship within 10 - 15 working days
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The notion of a dominated or rnajorized operator rests on a simple
idea that goes as far back as the Cauchy method of majorants.
Loosely speaking, the idea can be expressed as follows. If an
operator (equation) under study is dominated by another operator
(equation), called a dominant or majorant, then the properties of
the latter have a substantial influence on the properties of the
former . Thus, operators or equations that have "nice" dominants
must possess "nice" properties. In other words, an operator with a
somehow qualified dominant must be qualified itself. Mathematical
tools, putting the idea of domination into a natural and complete
form, were suggested by L. V. Kantorovich in 1935-36. He introduced
the funda mental notion of a vector space normed by elements of a
vector lattice and that of a linear operator between such spaces
which is dominated by a positive linear or monotone sublinear
operator. He also applied these notions to solving functional
equations. In the succeedingyears many authors studied various
particular cases of lattice normed spaces and different classes of
dominated operators. However, research was performed within and in
the spirit of the theory of vector and normed lattices. So, it is
not an exaggeration to say that dominated operators, as independent
objects of investigation, were beyond the reach of specialists for
half a century. As a consequence, the most important structural
properties and some interesting applications of dominated operators
have become available since recently."
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