نتایج جستجو برای: low l 0 36x052
تعداد نتایج: 2201676 فیلتر نتایج به سال:
We confront Cardassian models with recent observational data. These models can be viewed either as purely phenomenological modifications of the Friedmann equation, or as arising from cosmic fluids with non-standard properties. In the first case, we find that the models are consistent with the data for a wide range of parameters but no significant preference over the ΛCDM model is found. In the ...
We focus on the space Ec , the countable infinite power of complete Erdős space Ec. Both spaces are universal spaces for the class of almost zerodimensional spaces. We prove that Ec has the property that it is stable under multiplication with any complete almost zero-dimensional space. We obtain this result as a corollary to topological characterization theorems that we develop for Ec . We also...
D ec 1 99 9 Generation of the Scalar Field and Anisotropy at Quantum Creation of the Closed Universe
The behaviour of the wave function of the Universe under the barrier for anisotropic cosmological Bianchi type IX model with account of influence of the scalar field is explored. In view of known difficulties with interpretation of multidimensional wave functions the method of reduction of such problems to one-dimensional is offered. For this purpose in frameworks of semiclassical approach the ...
Using Cox models, we established a new prognostic system based on simple clinical parameters in a training series of 232 patients whose diagnoses were made before 1989. Adverse prognostic factors for survival (P <.01) were age 65 years or older, male gender, albumin level lower than 40 g/L, hemoglobin level lower than 12 g/dL, platelet count less than 150 x 10(9)/L, white blood cell count less ...
This paper studies the limiting behavior of Tyler’s and Maronna’s Mestimators, in the regime that the number of samples n and the dimension p both go to infinity, and p/n converges to a constant y with 0 < y < 1. We prove that when the data samples are identically and independently generated from the Gaussian distribution N(0, I), the difference between 1 n ∑n i=1 xix T i and a scaled version o...
It is shown, using the Wakimoto representation, that the level zero SU(2) Kac-Moody conformal field theory is topological and can be obtained by twisting an N=2 superconformal theory. Expressions for the associated N=2 superconformal generators are written down and the Kac-Moody generators are shown to be BRST exact .
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