In Large Neighborhood Search (LNS), a problem is solved by repeatedly exploring (via tree search) a neighborhood of an incumbent solution. Whenever an improving solution is found, this replaces the current incumbent. LNS can improve dramatically the scalability of CP on large real world problems, provided a good neighborhood selection heuristic is available. Unfortunately, designing a neighborh...

there are many different ways to subdivide the spectrum of a bounded linear operator; some of them aremotivated by applications to physics (in particular, quantum mechanics). in this study, the relationship betweenthe subdivisions of spectrum which are not required to be disjoint and goldberg's classification are given.moreover, these subdivisions for some summability methods are studied.

Maggiore observed that, in the high-damping regime, quasi-normal modes spectrum for Schwarzschild black hole resembles that of a quantum harmonic oscillator. Motivated by this observation, we describe as statistical ensemble N oscillators. By working canonical ensemble, show large-mass limit, leading contribution to Gibbs entropy is Bekenstein-Hawking term, while subleading one logarithmic corr...

We aim to understand how the spectrum of semi-Dirac fermions is renormalized due long-range Coulomb electron-electron interactions at a topological Lifshitz transition, where two Dirac cones merge. At electronic characterized by massive quadratic dispersion in one direction, while it remains linear other. have found that, lowest order, unconventional log squared (double logarithmic) correction ...

The current on a linear strip or wire solves an equation governed by a linear integraldifferential operator that is the composition of the Helmholtz operator and an integral operator with logarithmically singular displacement kernel. We investigate the spectral behavior of this classical operator, particularly because various methods of analysis and solution rely on asymptotic properties of spe...

It is shown that the conventional sampling schemes are of limited use for conversion of monotonic long-time-interval and wide-frequency-band data of relaxation experiments, which can be measured over many decades of time or frequency. The problem of sampling is considered in combination with designing the discrete-time algorithms for relaxation data conversion has been generalized as a convolut...

purpose: e is a commonly use letter for illiterates or those who could not read english to measure visual acuity. the e chart is the mainly used charts in iran. however, they do not have the standards. they are in different format, fixed for 6 meter test, with or without lighting, with unequal number of letters in each line and different contrasts. as a result, there is an essential need for a ...