2,047 research outputs found
Any spacetime has a Bianchi type I spacetime as a limit
Pick an arbitrary timelike geodesic in an arbitrary spacetime. We demonstrate
that there is a particular limiting process, an "ultra-local limit", in which
the immediate neighborhood of the timelike geodesic can be "blown up" to yield
a general (typically non-diagonal) Bianchi type I spacetime. This process
shares some (but definitely not all) of the features of the Penrose limit,
whereby the immediate neighborhood of an arbitrary null geodesic is "blown up"
to yield a pp-wave as a limit.Comment: 19 pages; no figure
The Basic Formula Price Futures Contract: A New Dairy Industry Risk Management Tool
Livestock Production/Industries, Marketing, Risk and Uncertainty,
The Basic Formula Price: Has the Use of NASS Cheese Prices Changed Its Value?
Agribusiness, Demand and Price Analysis,
Federal Milk Marketing Order Reform (Continued)
Agricultural and Food Policy, Livestock Production/Industries, Marketing,
WHAT IMPACTS HAVE PAST U.S./CANADIAN DAIRY PROGRAMS HAD ON STRUCTURE, EFFICIENCY, AND TRADING RELATIONSHIPS? U.S. ANALYSIS
Agricultural and Food Policy, International Relations/Trade,
Polarization modes for strong-field gravitational waves
Strong-field gravitational plane waves are often represented in either the
Rosen or Brinkmann forms. These forms are related by a coordinate
transformation, so they should describe essentially the same physics, but the
two forms treat polarization states quite differently. Both deal well with
linear polarizations, but there is a qualitative difference in the way they
deal with circular, elliptic, and more general polarization states. In this
article we will describe a general algorithm for constructing arbitrary
polarization states in the Rosen form.Comment: 4 pages. Prepared for the proceedings of ERE2010 (Granada, Spain
Interregional Analysis of Interstate Dairy Compacts
Livestock Production/Industries, Marketing,
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