نتایج جستجو برای: bai and perron method
تعداد نتایج: 17045141 فیلتر نتایج به سال:
We propose an inverse iterative method for computing the Perron pair of an irreducible nonnegative third order tensor. The method involves the selection of a parameter θk in the kth iteration. For every positive starting vector, the method converges quadratically and is positivity preserving in the sense that the vectors approximating the Perron vector are strictly positive in each iteration. I...
we give further results for perron-frobenius theory on the numericalrange of real matrices and some other results generalized from nonnegative matricesto real matrices. we indicate two techniques for establishing the main theorem ofperron and frobenius on the numerical range. in the rst method, we use acorresponding version of wielandt's lemma. the second technique involves graphtheory.
The Bai-Ng criteria are shown to overestimate the true number of common factors when panel data exhibit considerable serial dependence. We consider filtering the data before applying the Bai-Ng method as a practical solution to the problem. Despite possible bias and model misspecification, the AR(1) least squares dummy variable (LSDV) filtering method is shown to be consistent for panels with a...
abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...
applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...
Several projections were made during and after the Global financial crises of 2007-2009 about continuity foreign aid to Africa.Some opined that will reach Sub Saharan Africa via decline as well other transfers such remittances Foreign Direct Investment. It is on this premise study examined flow in an effort appreciate trend before, crisis. The used charts Bai-Perron multiple structural break te...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Perron-Frobenius operators and their eigendecompositions are increasingly being used as tools of global analysis for higher dimensional systems. The numerical computation of large, isolated eigenvalues and their corresponding eigenfunctions can reveal important persistent structures such as almostinvariant sets, however, often little can be said rigorously about such calculations. We attempt to...
abstract background: a significant relationship between psychiatric disorders principally depression and anxiety and insomnia is well-known in general population. ahigh percent of insomnia sufferers report anxiety symptoms. anxiety is also frequently seen in medical patients whom complaints of sleep problems are often prominent. method: 250 outpatients with various medical complaints partic...
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