A more detailed analysis is made of the energy spectrum of the diffuse component of extragalactic gamma rays over the range of 0.3- 10 GeV, obtained fromthe EGRET instrument at the Compton Gamma Ray Observatory. The derived excess energy spectrum of high galactic latitude, b > 60°, using intercept method shows that it is correlated with Virgo cluster (over lsr) and average Virgo intensity i...

In this paper we show that if A is a unital Banach algebra and B is a purely innite C*-algebra such that has a non-zero commutative maximal ideal and $phi:A rightarrow B$ is a unital surjective spectrum preserving linear map. Then $phi$ is a Jordan homomorphism.

a more detailed analysis is made of the energy spectrum of the diffuse component of extragalactic gamma rays over the range of 0.3- 10 gev, obtained fromthe egret instrument at the compton gamma ray observatory. the derived excess energy spectrum of high galactic latitude, b > 60°, using intercept method shows that it is correlated with virgo cluster (over lsr) and average virgo intensity is ab...

II Spectrum Opportunity Identification 5 II-A Spectrum Opportunity and Interference Constraint: Definitions and Implications . . . . . . . . . 5 II-A.1 Spectrum Opportunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 II-A.2 Interference Constraint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 II-B Spectrum Opportunity Detection . . . . . . . . ....