We study the stability properties of constant mean curvature (CMC) surfaces of revolution in general simply-connected spherically symmetric 3-spaces, and in the particular case of a positive-definite 3dimensional slice of Schwarzschild space. We derive their Jacobi operators, and then prove that closed CMC tori of revolution in such spaces are unstable, and finally numerically compute the Morse...

| The combination of continuous phase modulation (CPM) with direct-sequence code-division multiple access (DS-CDMA) for multiuser transmission over the additive white Gaussian noise channel is discussed. Concentrating on the important special case of generalized minimum-shift keying, particularly simple receiver structures are obtained. To emphasize on low complexity, noncoherent reception is p...

Software regression is a bug that makes software stop functioning normally after a certain event. In this paper, we investigate detecting regression when software evolves to a new version. In this context, regression bugs occur in parts of software that already passed testing process in the old version. Hence, such kind of bugs is difficult to be discovered if normal strategy like white-box tes...

An unknown signal plus white noise is observed at n discrete time points. Within a large convex class of linear estimators of , we choose the estimator b that minimizes estimated quadratic risk. By construction, b is nonlinear. This estimation is done after orthogonal transformation of the data to a reasonable coordinate system. The procedure adaptively tapers the coeecients of the transformed ...

Iran's Islamic revolution had so many effects on political, social, cultural and economic conditions of Shiites outside of Iran and caused a special formation of Muslims identity beliefs in the world, especially shia Muslims. Islamic revolution was a turning point in the Saudi Shia movement to get their spoiled rights by governance structure in Saudi Arabia and helped Shia movements to revive a...