421,182 research outputs found
On the Adams Spectral Sequence for R-modules
We discuss the Adams Spectral Sequence for R-modules based on commutative
localized regular quotient ring spectra over a commutative S-algebra R in the
sense of Elmendorf, Kriz, Mandell, May and Strickland. The formulation of this
spectral sequence is similar to the classical case and the calculation of its
E_2-term involves the cohomology of certain `brave new Hopf algebroids' E^R_*E.
In working out the details we resurrect Adams' original approach to Universal
Coefficient Spectral Sequences for modules over an R ring spectrum.
We show that the Adams Spectral Sequence for S_R based on a commutative
localized regular quotient R ring spectrum E=R/I[X^{-1}] converges to the
homotopy of the E-nilpotent completion pi_*hat{L}^R_ES_R=R_*[X^{-1}]^hat_{I_*}.
We also show that when the generating regular sequence of I_* is finite,
hatL^R_ES_R is equivalent to L^R_ES_R, the Bousfield localization of S_R with
respect to E-theory. The spectral sequence here collapses at its E_2-term but
it does not have a vanishing line because of the presence of polynomial
generators of positive cohomological degree. Thus only one of Bousfield's two
standard convergence criteria applies here even though we have this
equivalence. The details involve the construction of an I-adic tower R/I <--
R/I^2 <-- ... <-- R/I^s <-- R/I^{s+1} <-- ... whose homotopy limit is
hatL^R_ES_R. We describe some examples for the motivating case R=MU.Comment: Published 7 April 2001 by Algebraic and Geometric Topology at
http://www.maths.warwick.ac.uk/agt/AGTVol1/agt-1-9.abs.html . Erratum added 9
May 200
Internal networks revisited: Telepathy meets technology
This conference paper is available to download from the publisher’s website at the link below.This is speculative paper that explores the paradigm-shifting concept of initiating a mind/body to computer communication or interaction, it is not intended necessarily a prescriptive work. This idea pushes the boundaries of accepted conventional science, in terms of human versus computer capabilities and the potential for these capabilities to work in tandem, through means currently accepted only in science fiction. This paper takes the recent revelations in physics, psychology and neuroscience then couples them with the idea of human computer interaction and wireless communication to envision experiential means of connecting human consciousness with technology
A lower bound for average values of dynamical Green's functions
We provide a Mahler/Elkies-style lower bound for the average values of
dynamical Green's functions on the projective line over an arbitrary valued
field, and give some dynamical and arithmetic applications.Comment: 15 pages; to appear in Mathematical Research Letters. Removed remark
following Lemma 3.
Growth rates of bacteria in rivers
Three different methods for determining bacterial growth rate in rivers are described. Two of the methods are for bacteria in suspension: a recirculating experimental channel method and a radioactive tracer technique using super(35)SO sub(4). The third method is for bacteria attached to surfaces and specifically considers the surface of the common duckweed Lemna minor)
A Voluntary Default Savings Plan: An Effective Supplement to Social Security
This paper outlines a proposal for a default savings plan that is intended to provide an important supplement to retirement income for the bottom half of the workforce, most of whom have little other than Social Security to support themselves in retirement at present. Under the proposal, workers would make a default contribution of 3.0 percent on annual wages up to 8,000 and then phasing down to zero with earnings above 40,000
The Housing Crash Recession and the Case for a Third Stimulus
This paper makes the case for a third stimulus package to in the face of economic indicators signaling that the economy is in a deeper downturn than was expected based on previous projections. Specifically, the report calls for an employer tax-credit for extending health care coverage and another per worker employer tax credit for increasing paid time off from work. The author also makes the case for a housing policy centered on the stabilization of prices in non-bubble and deflated markets rather than applying the same efforts on markets that remain at bubble inflated levels. Finally, the paper argues that the dollar must be allowed to fall in order to adjust trade imbalances that are compounding the U.S. economic crisis caused by the collapse of the housing market
On the cohomology of loop spaces for some Thom spaces
In this paper we identify conditions under which the cohomology H^*(\Omega
M\xi;\k) for the loop space of the Thom space of a
spherical fibration can be a polynomial ring. We use the
Eilenberg-Moore spectral sequence which has a particularly simple form when the
Euler class e(\xi)\in H^n(B;\k) vanishes, or equivalently when an orientation
class for the Thom space has trivial square. As a consequence of our
homological calculations we are able to show that the suspension spectrum
has a local splitting replacing the James splitting
of when is a suspension.Comment: Final version, minor change
China Employment Law Update - June 2007
An update in ongoing developments regarding labor relations and employment in China
Breaking New Ground in Germany: Work Visa and Labour Law Aspects
[Excerpt] The purpose of this booklet is to provide a summary of the laws and procedures applicable to anyone who enters Germany and takes up employment. It does not explore all issues in detail.The law is correct as of April 1, 2006
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