K. Gustafson and J. Weidmann, On the essential spectrum , J. Math. Analysis and Applications, 25(1969), 121–127.K. Gustafson and J. Weidman, On the essential spectrum. J. Math. Anal. Appl. 25, 121–127 (1969).K. Gustafson and J. Weidmann, On the essential spectrum, J. Math. ...
On the essential spectrum of the Laplacian on complete manifolds The author proves two theorems on when the essential spectrum of the Laplace-Beltrami operator on a complete manifold M satisfying a generalized "pole condition" is equal to an interval [c,∞). The condition on M is that it ...
On the Essential Spectrum of a Class of Operators in Hilbert Space Sufficient conditions are given such that the product T 1 T 2 of two unbounded operators in Hilbert spaces is essentially selfadjoint and that the nonzero ... M Möller - 《Mathematische Nachrichten》 被引量: 13发表: 2015...
We have identified operators that have power-bounded and uniformly mean ergodic properties on the spaces. These properties are described in terms of easy to apply conditions relying on the values |u(0)| and , where a and b are coefficients from linear expansion of the symbol . The spectrum ...
4.5G is an essential step to 5G. Although the ITU outlined the marker, vision, and timeline for 5G in June 2015, the telecom industry has yet to set out a process for moving from 4G to 5G. Why? Widespread commercial deployment of 5G still a long way off:According to the ITU's time...
I started to think that I was either an outlier or not on the spectrum at all. So many of the traits of Asperger’s fit me, but the overall profile of an adult aspie? That didn’t sound like me at all. It was only when I discovered the blogs of autistic adults that I began to...
Tight oil’s limitations makes it incumbent upon America to secure heavy oil sources in order to mix with tight oil and refine it into the full spectrum of products needed to keep an advanced economy humming along and growing. Possibly part of the reason that tight oil sells at a steep ...
He threw a folded dollar on the counter. 他将折起的1美元钞票扔到柜台上。 柯林斯高阶英语词典 He continued to lie on his back and look at clouds... 他仍旧仰卧着,望着天上的云彩。 柯林斯高阶英语词典 He raised himself on his elbows, squinting into the sun... 他用胳膊肘支起身子,眯着眼睛...
carrier revenue. This fact is becoming an increasing concern for telcos. At Huawei's 2014 User Conference, 89% of carriers considered service quality and user experience consistency to be key challenges, with 96% believing improved coverage and access rate ...
OrangeHRM - OrangeHRM is a comprehensive HRM system that captures all the essential functionalities required for any enterprise. (Demo, Source Code) GPL-2.0 PHP TimeOff.Management - Simple yet powerful absence management software for small and medium size business. (Demo, Source Code) MIT Nodejs ...