We explore via linearized perturbation theory the Gregory-Laflamme instability of rotating black strings with equal magnitude angular momenta. Our results indicate that the Gregory-Laflamme instability persists up to extremality for all even dimensions between six and fourteen. We construct rotating nonuniform black strings with two equal magnitude angular momenta in six dimensions. We see a fi...

We study the concept of bribery in the situation where voters are willing to change their votes as we ask them, but where their prices depend on the nature of the change we request. Our model is an extension of the one of Faliszewski et al. [9], where each voter has a single price for any change we may ask for. We show polynomial-time algorithms for our version of bribery for a broad range of v...

Efficient computation of transient responses of frequency-dependent nonlinearly loaded transmission lines. Porto, the institutional repository of the Politecnico di Torino, is provided by the University Library and the IT-Services. The aim is to enable open access to all the world. Please share with us how this access benefits you. Your story matters. Abstmcf-In this paper, we address the combi...

In this paper, we consider the problem of reconstructing piecewise smooth functions to high accuracy from nonuniform samples of their Fourier transform. We use the framework of nonuniform generalized sampling (NUGS) to do this, and to ensure high accuracy we employ reconstruction spaces consisting of splines or (piecewise) polynomials. We analyze the relation between the dimension of the recons...

This paper deals with nonuniform transmission lines which are excited at high frequencies. Networks of those lines are formed and they are described by the BLT–equation. The essential ingredients in this equation are the scattering and the propagation supermatrices. For our investigations we derive these quantities from the product integral solution of generalized telegrapher’s equations. The m...

Nonlinear photovoltaic (PV) output is greatly affected by the nonuniform distribution of daily irradiance, preventing conventional protection devices from reliably detecting faults. Smart fault diagnosis and good maintenance systems are essential for optimizing overall productivity a PV system improving its life cycle. Hence, multiscale smart model improved strategies proposed. This study focus...

This work solves the signal reconstruction problem involving nonuniform filter bank systems with rational decimation factors and noises. Three main nonuniform filter bank systems, i.e., filter-block decimator (FBD) structure, upsamplerfilter-downsampler (UFD) structure, and tree structure, are included in this study. According to different operating conditions, two different signal reconstructi...

In some applications the observed samples are inherently nonuniform. In contrast to that in this paper we take advantage of deliberate nonuniform sampling and perform DSP where the classical approaches leave off. For instance think about mobile communication or digital radio. Deliberate nonuniform sampling promises increased equivalent sampling rates with reduced overall hardware costs. The equ...

The “line-by-line” method is used for the evaluation of thermal emission standard atmosphere toward Earth. Accounting thermodynamic equilibrium radiation field with air molecules and considering as a weakly nonuniform layer, we reduce at given frequency this layer containing various types to that uniform which characterized by certain radiative temperature T?, an optical thickness u? opaque fac...

The local reconstruction from samples is one of most desirable properties for many applications in signal processing, but it has not been given as much attention. In this paper, we will consider the local reconstruction problem for signals in a shiftinvariant space. In particular, we consider finding sampling sets X such that signals in a shift-invariant space can be locally reconstructed from ...