An acceleration technique is developed that significantly improves the accuracy of a wide class of well-known numerical procedures for approximating the spectra of linear compact operators. A given ...

Recent results of M. Radjabalipour and H. Radjavi assert that the sum of a normal operator $N$ with spectrum on a smooth Jordan curve and a compact operator $K$ in ...

Telcos across the spectrum-those using GSM and CDMA technologies-have again locked horns, this time over comments by Ratan Tata that hoarding of spectrum by important players for free needs to be ...

AT&T, T-Mobile and Dish have all expressed views that there should be changes to the rules on how much spectrum one operator can own – but differ in their estimations of what’s fair. As reported by ...