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| 1 | Constructing super Gabor frames:the rational time-frequency lattice case显示文摘For a time-frequency lattice Λ = A Z d × B Z d , it is known that an orthonormal super Gabor frame of length L exists with respect to this lattice if and only if |det( AB) | = 1 L . The proof of this result involves various techniques from multi-lattice tiling and operator algebra theory, and it is far from constructive. In this paper we present a very general scheme for constructing super Gabor frames for the rational lattice case. Our method is based on partitioning an arbitrary fundamental domain of the lattice in the frequency domain such that each subset in the partition tiles R d by the lattice in the time domain. This approach not only provides us a simple algorithm of constructing various kinds of orthonormal super Gabor frames with flexible length and multiplicity, but also allows us to construct super Gabor (non-Riesz) frames with high order smoothness and regularity. Several examples are also presented. | LI ZhongYan 1 & HAN DeGuang 2, 1 Department of Mathematics and Physics, North China Electric Power University, Beijing 102206, China 2 Department of Mathematics, University of Central Florida, Orlando, FL 32816, USA | 2010 | Science China Mathematics2010，53，12： | 3 |
| 2 | 以公共结构及语言进行应用系统一体化显示文摘介绍了美国佛罗里达电力照明公司对主要业务系统基于公共结构及语言 ,进行信息集成的工作过程和经验 ,对企业信息一体化的技术内容和框架结构做了总体介绍 ,并根据应用实际阐述了公共信息模型的扩展 ,对其他企业开展信息系统一体化工作具有一定的借鉴作用。 | 祝春捷 Don Brown Florida Power Light Greg Robinson Xtensible Solutions | 2004 | 浙江电力2004，23，3： | 1 |
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