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 ...

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 ...

Grameenphone and Robi, the top two mobile network operators in Bangladesh, have each secured a spectrum allocation of 20 megahertz (MHz) to boost the quality of their services. Bangladesh ...