24,208 research outputs found
Poisson Lie Group Symmetries for the Isotropic Rotator
We find a new Hamiltonian formulation of the classical isotropic rotator
where left and right transformations are not canonical symmetries but
rather Poisson Lie group symmetries. The system corresponds to the classical
analog of a quantum mechanical rotator which possesses quantum group
symmetries. We also examine systems of two classical interacting rotators
having Poisson Lie group symmetries.Comment: 22pp , Latex fil
Purposeful empiricism: how stochastic modeling informs industrial marketing research
It is increasingly recognized that progress can be made in the development of integrated theory for understanding, explaining and better predicting key aspects of buyer–seller relationships and industrial networks by drawing upon non-traditional research perspectives and domains. One such non-traditional research perspective is stochastic modeling which has shown that large scale regularities emerge from the individual interactions between idiosyncratic actors. When these macroscopic patterns repeat across a wide range of firms, industries and business types this commonality suggests directions for further research which we pursue through a differentiated replication of the Dirichlet stochastic model. We demonstrate predictable behavioral patterns of purchase and loyalty in two distinct industrial markets for components used in critical surgical procedures. This differentiated replication supports the argument for the use of stochastic modeling techniques in industrial marketing management, not only as a management tool but also as a lens to inform and focus research towards integrated theories of the evolution of market structure and network relationships
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On the boundary-layer structure of high-Prandtl-number horizontal convection
Edge Currents and Vertex Operators for Chern-Simons Gravity
We apply elementary canonical methods for the quantization of 2+1 dimensional
gravity, where the dynamics is given by E. Witten's Chern-Simons
action. As in a previous work, our approach does not involve choice of gauge or
clever manipulations of functional integrals. Instead, we just require the
Gauss law constraint for gravity to be first class and also to be everywhere
differentiable. When the spatial slice is a disc, the gravitational fields can
either be unconstrained or constrained at the boundary of the disc. The
unconstrained fields correspond to edge currents which carry a representation
of the Kac-Moody algebra. Unitary representations for such an
algebra have been found using the method of induced representations. In the
case of constrained fields, we can classify all possible boundary conditions.
For several different boundary conditions, the field content of the theory
reduces precisely to that of 1+1 dimensional gravity theories. We extend the
above formalism to include sources. The sources take into account self-
interactions. This is done by punching holes in the disc, and erecting an
Kac-Moody algebra on the boundary of each hole. If the hole is
originally sourceless, a source can be created via the action of a vertex
operator . We give an explicit expression for . We shall show that when
actingComment: 42 pages, UAHEP 925, SU-4240-508, INFN-NA-IV-92/1
Statistical Filtering of Space Navigation Measurements
Statistical filtering of space navigation measurement
Global Market Integration and National Sovereignty
In this paper, we first trace the evolution of the global trading system from the 19th century to the present-day GATT/WTO arrangements, calling attention to the key roles of reciprocity and nondiscrimination, and we note how the system is now challenged by the new paradigm of global market integration. We then consider the recent plethora of free trade agreements (FTAs), including those between industrial and developing countries, and their uneasy relationship with a multilateral system based on non-discrimination.. Thereafter, we seek to identify the boundaries of the WTO and examine how the potential expansion of these boundaries extension and weakening of the effectiveness and influence of the WTO.Reciprocity, Non-Discrimination; Boundaries of WTO Regime
Optimization of midcourse velocity corrections
Optimum time to apply single midcourse velocity correction and optimum schedule for corrections in variable time-of-arrival guidance - geometrical mode
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