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On the Energy Efficiency of LT Codes in Proactive Wireless Sensor Networks
Energy Efficiency LT Codes Proactive Wireless Sensor Networks
2010/11/19
This paper presents an in-depth analysis on the energy efficiency of Luby Transform (LT) codes with Frequency Shift Keying (FSK) modulation in a Wireless Sensor Network (WSN) over Rayleigh fading chan...
We study the limiting behavior of the Kahler-Ricci flow on $\mathbb{P}(\mathcal{O}_{\mathbb{P}^n} \oplus \mathcal{O}_{\mathbb{P}^n}(-1)^{\oplus (m+1)})$, assuming the initial metric satisfies the Cal...
Operator algebra quantum groups of universal gauge groups
Operator algebra quantum groups universal gauge groups
2010/11/11
In this paper, we quantize universal gauge groups such as SU(\infty), in the sigma-C*-algebra setting. More precisely, we propose a concise definition of sigma-C*-quantum groups and explain the conce...
超理想与二值有限可加测度
理想 超理想 二值有限可加测度
2012/11/6
讨论了超理想与二值有限可加测度的关系.从理想出发,研究了超理想的性质,得到了超理想的等价条件.一方面,以超理想为工具,构造了二值有限可加测度;另一方面,由一个二值有限可加测度得到了一个超理想.进而研究了两者的关系,证明了它们是一致的. 服务
Non-equilibrium allele frequency spectra via spectral methods
Non-equilibrium allele frequency spectra spectral methods
2010/11/24
A major challenge in the analysis of population genomics data consists of isolating signatures of natural selection from background noise caused by random drift and gene flow. Analyses of massive amou...
基于时间序列采样的正则化回归算法的收敛性
时齐的 一致遍历 误差分析
2012/9/26
给出了基于时间序列采样的正则化回归算法的误差分析,即先将误差收敛归结为正则误差和样本误差,借助于Hoeffding型不等式给出了正则误差估计;同时,使用覆盖数及基于时间序列的Hoeffding型不等式给出了样本误差估计,从而算出学习速度一种上界的估计.最后的结果也说明学习速度能达到指数收敛性.
Projected Flat m-th Root Finsler Metrics
Finsler metric projected flat m-th root metric locally Minkowskian
2012/9/25
Projected flat Finsler metrics on an open subset in Rn are the regular solution to Hilbert’s Fourth Problem. We study locally projected flat m-th root Finsler metrics and its generalized metrics in t...
Quasi-weak equivalences in complicial exact categories
Quasi-weak equivalences complicial exact categories
2010/12/10
We introduce a notion of quasi-weak equivalences associated with weak-equivalences in an exact category. It gives us a delooping for (idempotent complete) exact categories and a condition that the neg...
Triviality of the dressing isotropy for a Smyth-type potential and nonclosing of the resulting CMC surfaces
Triviality dressing isotropy for a Smyth-type potential nonclosing resulting CMC surfaces
2010/12/10
In [2] we have investigated spacelike surfaces in Minkowski 3-space which are generated by the
potential = −1 0 1 z−1 0 dz .
Rotor walks on general trees
rotor walk rotor-router infinite tree quasi-random branching process
2010/12/13
The rotor walk on a graph is a deterministic analogue of random walk. Each vertex is equipped with a rotor, which routes the walker to the neighbouring vertices in a fixed cyclic order on
successive ...
Regarding a Representation-Theoretic Conjecture of Wigderson
Representation-Theoretic Conjecture of Wigderson
2010/12/9
We show that there exists a family of irreducible representations ri (of finite groups Gi) such that,for any constant t, the average of ri over t uniformly random elements g1, . . . ,gt ∈ Gi has opera...
Multiplicity on a Richardson variety in a cominuscule G/P
Multiplicity Richardson variety cominuscule G/P
2010/12/7
We show that in a cominuscule partial flag variety G/P,the multiplicity of an arbitrary point on a Richardson variety Xv w =Xw \ Xv G/P is the product of its multiplicities on the Schubert varieties...
We revisit the damped string equation on a compact interval with a variety of boundary conditions and derive an infinite sequence of trace formulas associated with it, employing methods familiar from ...
Bi-presymplectic representation of Liouville integrable systems and related separability theory
Bi-presymplectic representation Liouville integrable systems related separability theory
2010/12/15
Bi-presymplectic chains of one-forms of arbitrary co-rank are considered. The conditions in which such chains represent some Liouville integrable systems and the conditions in which there exist relate...
We develop a theory of enriched categories over a (higher) category M equipped with a class
W of morphisms called homotopy equivalences. We call them Segal MW -categories. Our motivation was to gener...