[4]Annulene. Comments on its infrared spectrum

Comments of Shared Spectrum Company

Comments on "Multiple Antenna Spectrum Sensing in Cognitive Radios"

We point out an error in a derivation in the recent paper [1], and provide a correct and much shorter calculation of the result in question. In passing, we also connect the results in [1] to the literature on array signal processing and on principal component analysis, and show that the signal detection methods proposed in [1] follow as special cases of standard results in these fields.

Comments on the radio spectrum of HB 3

It has recently been suggested that the radio spectrum of the Galactic supernova remnant HB 3 shows flattening at higher frequencies (above about 1 GHz). Here I review the radio spectrum of HB 3, noting the difficulties in deriving accurate flux densities for this remnant, particularly at high frequencies, due to the proximity of bright, thermal emission from W3 and its surroundings. A flux den...

Comments on Experimental Design for Evaluating FCC Spectrum Auction Alternatives

We are responding to Public Notice DA 05-1267, which seeks comment on the proposed experimental design to eva luate aspects of the FCC's alternative auction methods, both with and without package bidding. The experimental design is ambitious. Our main comment is that the effort will be more productive if there is more focus on elements for which past experience and existing knowledge does not p...

Comments on relaxed $(gamma, r)$-cocoercive mappings

We show that the variational inequality $VI(C,A)$ has aunique solution for a relaxed $(gamma , r)$-cocoercive,$mu$-Lipschitzian mapping $A: Cto H$ with $r>gamma mu^2$, where$C$ is a nonempty closed convex subset of a Hilbert space $H$. Fromthis result, it can be derived that, for example, the recentalgorithms given in the references of this paper, despite theirbecoming more complicated, are not...