P.E.T. Jorgensen – författare
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3 produkter
Operators and Representation Theory
Canonical Models for Algebras of Operators Arising in Quantum Mechanics
E-bok, 1987
717 kr
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Historically, operator theory and representation theory both originated with the advent of quantum mechanics. The interplay between the subjects has been and still is active in a variety of areas.This volume focuses on representations of the universal enveloping algebra, covariant representations …
Operator Commutation Relations
Commutation Relations for Operators, Semigroups, and Resolvents with Applications to Mathematical Physics and Representations of Lie Groups
Av R.T. Moore, P.E.T. Jorgensen
E-bok, 2012
1459 kr
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In his Retiring Presidential address, delivered before the Annual Meeting of The American Mathematical Society on December, 1948, the late Professor Einar Hille spoke on his recent results on the Lie theory of semigroups of linear transformations, . . • "So far only commutative operators have been …
Positive Semigroups of Operators, and Applications
Av P.E.T. Jorgensen, O. Bratteli
E-bok, 2012
710 kr
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This means that semigroup theory may be applied directly to the study of the equation I''!.f = h on M. In [45] Yau proves that, for h ~ 0, there are no nonconstant, nonnegative solutions f in [j'' for 1 < p < 00. From this, Yau gets the geometric fact that complete noncom pact Riemannian manifolds …
