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Nuclear Science Abstracts

Nuclear Science Abstracts PDF
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Size: 13.84 MB
Format: PDF, ePub
Category : Nuclear energy
Languages : en
Pages :
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Nuclear Science Abstracts

by , Nuclear Science Abstracts Books available in PDF, EPUB, Mobi Format. Download Nuclear Science Abstracts books, NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.




Infinite Dimensional Representations Of 2 Groups

Infinite dimensional Representations of 2 groups PDF
Author: John C. Baez
Publisher: American Mathematical Soc.
ISBN: 0821872842
Size: 31.15 MB
Format: PDF, ePub, Docs
Category : Mathematics
Languages : en
Pages : 120
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Infinite Dimensional Representations Of 2 Groups

by John C. Baez, Infinite Dimensional Representations Of 2 Groups Books available in PDF, EPUB, Mobi Format. Download Infinite Dimensional Representations Of 2 Groups books, A “$2$-group'' is a category equipped with a multiplication satisfying laws like those of a group. Just as groups have representations on vector spaces, $2$-groups have representations on “$2$-vector spaces'', which are categories analogous to vector spaces. Unfortunately, Lie $2$-groups typically have few representations on the finite-dimensional $2$-vector spaces introduced by Kapranov and Voevodsky. For this reason, Crane, Sheppeard and Yetter introduced certain infinite-dimensional $2$-vector spaces called ``measurable categories'' (since they are closely related to measurable fields of Hilbert spaces), and used these to study infinite-dimensional representations of certain Lie $2$-groups. Here they continue this work.

They begin with a detailed study of measurable categories. Then they give a geometrical description of the measurable representations, intertwiners and $2$-intertwiners for any skeletal measurable $2$-group. They study tensor products and direct sums for representations, and various concepts of subrepresentation. They describe direct sums of intertwiners, and sub-intertwiners--features not seen in ordinary group representation theory and study irreducible and indecomposable representations and intertwiners. They also study “irretractable'' representations--another feature not seen in ordinary group representation theory. Finally, they argue that measurable categories equipped with some extra structure deserve to be considered “separable $2$-Hilbert spaces'', and compare this idea to a tentative definition of $2$-Hilbert spaces as representation categories of commutative von Neumann algebras.




Irreducible Representations Of The Group Of Two By Two Matrices Over A Disconnected Field

Irreducible Representations of the Group of Two by two Matrices Over a Disconnected Field PDF
Author: Thomas Franklin Potter
Publisher:
ISBN:
Size: 47.38 MB
Format: PDF, Docs
Category :
Languages : en
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Irreducible Representations Of The Group Of Two By Two Matrices Over A Disconnected Field

by Thomas Franklin Potter, Irreducible Representations Of The Group Of Two By Two Matrices Over A Disconnected Field Books available in PDF, EPUB, Mobi Format. Download Irreducible Representations Of The Group Of Two By Two Matrices Over A Disconnected Field books,




Group Theory And General Relativity

Group Theory and General Relativity PDF
Author: Moshe Carmeli
Publisher: World Scientific
ISBN: 9781860942341
Size: 28.93 MB
Format: PDF, Mobi
Category : Science
Languages : en
Pages : 391
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Group Theory And General Relativity

by Moshe Carmeli, Group Theory And General Relativity Books available in PDF, EPUB, Mobi Format. Download Group Theory And General Relativity books, This is the only book on the subject of group theory and Einstein's theory of gravitation. It contains an extensive discussion on general relativity from the viewpoint of group theory and gauge fields. It also puts together in one volume many scattered, original works, on the use of group theory in general relativity theory. There are twelve chapters in the book. The first six are devoted to rotation and Lorentz groups, and their representations. They include the spinor representation as well as the infinite-dimensional representations. The other six chapters deal with the application of groups -- particularly the Lorentz and the SL(2, C) groups -- to the theory of general relativity. Each chapter is concluded with a set of problems. The topics covered range from the fundamentals of general relativity theory, its formulation as an SL(2, C) gauge theory, to exact solutions of the Einstein gravitational field equations. The important Bondi-Metzner-Sachs group, and its representations, conclude the book The entire book is self-contained in both group theory and general relativity theory, and no prior knowledge of either is assumed. The subject of this book constitutes a relevant link between field theoreticians and general relativity theoreticians, who usually work rather independently of each other. The treatise is highly topical and of real interest to theoretical physicists, general relativists and applied mathematicians. It is invaluable to graduate students and research workers in quantum field theory, general relativity and elementary particle theory.




Soviet Physics

Soviet Physics PDF
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Size: 59.61 MB
Format: PDF
Category : Physics
Languages : en
Pages :
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Soviet Physics

by , Soviet Physics Books available in PDF, EPUB, Mobi Format. Download Soviet Physics books,