1,705 research outputs found
Asymptotic properties of random matrices and pseudomatrices
We study the asymptotics of sums of matricially free random variables called
random pseudomatrices, and we compare it with that of random matrices with
block-identical variances. For objects of both types we find the limit joint
distributions of blocks and give their Hilbert space realizations, using
operators called `matricially free Gaussian operators'. In particular, if the
variance matrices are symmetric, the asymptotics of symmetric blocks of random
pseudomatrices agrees with that of symmetric random blocks. We also show that
blocks of random pseudomatrices are `asymptotically matricially free' whereas
the corresponding symmetric random blocks are `asymptotically symmetrically
matricially free', where symmetric matricial freeness is obtained from
matricial freeness by an operation of symmetrization. Finally, we show that row
blocks of square, lower-block-triangular and block-diagonal pseudomatrices are
asymptotically free, monotone independent and boolean independent,
respectively.Comment: 33 pages, 2 figure
Free analog of pressure and its Legendre transform
The free analog of the pressure is introduced for multivariate noncommutative
random variables and its Legendre transform is compared with Voiculescu's
microstate free entropy.Comment: Slightly corrected in April 200
THE STUDY OF BIOCHEMICAL PARAMETERS FOR NAVAL ACADEMY TEAM IN THE NAVAL PENTATHLON
Under consideration accomplished subdued research a series of the biochemical parameters (the haemoglobin, albuminoidal, lactic acid), who conditions the physical special effort. Hold the medical area ( A. Demeter, 1982; I. Dragan, 1984; M. Ifrim, 1989, etc.) propose in the process of selection grids with standard values have the parameters determinant in the system criterions of selection. Biochemical investigations suggested were effectuate in this experimentally stage to the initially and final moment. Through these inhibition of laboratory investigation we have follow: 1. If the results obtained frames in the natural suggested limits hold by the medical area specialist; 2. In what grey the investigations values obtained are influenced of the specific complex effort from the military pentathlon. The biochemical investigation realized demonstrated that the results obtained of subjects the group of the experiment they framed in natural physiological limits. From the series four the biochemical parameters apply in research, from statistical viewpoint to the ultimate testing mark crease average values to the level experiment group. "the haemoglobin, albuminoidal, lactic acid, the urea
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