883 research outputs found
On some applications of unstable Adams operations to the topology of Kac-Moody groups
Localized at almost all primes, we describe the structure of differentials in
several important spectral sequences that compute the cohomology of classifying
spaces of topological Kac-Moody groups. In particular, we show that for all but
a finite set of primes, these spectral sequences collapse and that there are no
additive extension problems. We also describe some appealing consequences of
these results. The main tool is the use of the naturality properties of
unstable Adams operations on these classifying spaces.Comment: The construction of the local unstable Adams operation, needed for
the proof of the main theorem, that was implicit in Section 3 has now been
presented explicitly as a new sectio
Optimal financial structure, bankruptcy risk and the right to a new beginning
Starting from the need to optimize the financial structure of the enterprise, the article aims to review a few concepts related to financial structure and bankruptcy risk, the presentation of the bankruptcy risk analysis based on assets balance sheet, liquidity ratios and last, but not least, scoring method. It also presents some points of view regarding the current economic crisis and the evolution of national and international level approaches about bankruptcy and the risk of bankruptcy.financial structure, bankruptcy risk, liquidity ratios
On fibrations related to real spectra
We consider real spectra, collections of Z/(2)-spaces indexed over Z oplus Z
alpha with compatibility conditions. We produce fibrations connecting the
homotopy fixed points and the spaces in these spectra. We also evaluate the map
which is the analogue of the forgetful functor from complex to reals composed
with complexification. Our first fibration is used to connect the real
2^{n+2}(2^n-1)-periodic Johnson--Wilson spectrum ER(n) to the usual
2(2^n-1)-periodic Johnson--Wilson spectrum, E(n). Our main result is the
fibration Sigma^{lambda(n)} ER(n) --> ER(n) --> E(n)$, where lambda(n) =
2^{2n+1}-2^{n+2}+1.Comment: This is the version published by Geometry & Topology Monographs on 27
January 200
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