15,519 research outputs found
Variational Principle in the Algebra of Asymptotic Fields
This paper proposes a variational principle for the solutions of quantum
field theories in which the ``trial functions'' are chosen from the algebra of
asymptotic fields, and illustrates this variational principle in simple cases.Comment: 15 pages, Latex, no figure
Solar-radiation-induced damage to optical properties of ZnO-type pigments Technical summary report, Jul. 1966 - Feb. 1968
Mechanisms of solar radiation damage to optical properties in zinc oxide pigments in visible and infrared region
Interactive color display of 3-D engineering analysis results
A general approach to three-dimensional postprocessing of engineering analyses is presented. The approach is versatile and may handle the results from a wide range of engineering analysis methods which involve the discretization of continua. To facilitate the understanding of complex three-dimensional numerical models, advanced interactive color postprocessing techniques are introduced. Finite element, finite difference, and boundary element models are evaluated with the prototype postprocessor. The existing color graphics program (POSTPRO3D) was ported to a high-resolution device. Interactive graphic tools were implemented to facilitate qualitative mesh evaluation from a single analysis. A postprocessing environment was design for workstation technology
Covariance of Time-Ordered Products Implies Local Commutativity of Fields
We formulate Lorentz covariance of a quantum field theory in terms of
covariance of time-ordered products (or other Green's functions). This
formulation of Lorentz covariance implies spacelike local commutativity or
anticommutativity of fields, sometimes called microscopic causality or
microcausality. With this formulation microcausality does not have to be taken
as a separate assumption.Comment: 6 pages, section on non-local theories removed, published versio
The Inauguration of Criminology Annuals
A Review of Crime and Justice: An Annual Review of Research, vol. 1 edited by Norval Morris and Michael Tonry, and Criminology Review Yearbook, Vol. 2 edited by Egon Bittner and Sheldon L. Messinge
Exterior powers in Iwasawa theory
The Iwasawa theory of CM fields has traditionally concerned Iwasawa modules
that are abelian pro-p Galois groups with ramification allowed at a maximal set
of primes over p such that the module is torsion. A main conjecture for such an
Iwasawa module describes its codimension one support in terms of a p-adic
L-function attached to the primes of ramification. In this paper, we study more
general and potentially much smaller Iwasawa modules that are quotients of
exterior powers of Iwasawa modules with ramification at a set of primes over p
by sums of exterior powers of inertia subgroups. We show that the higher
codimension support of such quotients can be measured by finite collections of
p-adic L-functions under the relevant CM main conjectures.Comment: 41 pages, to appear in J. Eur. Math. So
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