Results 41 to 50 of about 1,014,881 (173)

Upper bounds of differential branch number of $$n$$ n -bit permutations

open access: yesCybersecurity
The differential branch number is a key parameter used to measure the diffusion ability of a permutation. It is of great significance to study the upper bound of the differential branch number of permutations. This paper analyses the existence problem of
Ying Gao, Lin Qi
doaj   +1 more source

On the Upper Bounds of Eigenvalues for a Class of Systems of Ordinary Differential Equations with Higher Order

open access: yesInternational Journal of Differential Equations, 2011
The estimate of the upper bounds of eigenvalues for a class of systems of ordinary differential equations with higher order is considered by using the calculus theory.
Gao Jia, Li-Na Huang, Wei Liu
doaj   +1 more source

Blind MIMO channel estimation with an upper bound for channel orders [PDF]

open access: yesIEEE International Conference on Communications, 2005. ICC 2005. 2005, 2005
Many known second-order statistics based blind algorithms for MIMO channel estimation are sensitive to channel order overestimations. To overcome this problem, an algorithm is proposed in Gazzah, H et al. (2002) for SIMO system only, and then a simple generalization of it to MIMO system is presented.
Zeng, Y, Ng, TS, Ma, S
openaire   +2 more sources

Upper and Lower Bound Limit Loads for Thin-Walled Pressure Vessels Used for Aerosol Cans

open access: yesAdvances in Mechanical Engineering, 2009
The elastic compensation method proposed by Mackenzie and Boyle is used to estimate the upper and lower bound limit (collapse) loads for one-piece aluminium aerosol cans, which are thin-walled pressure vessels subjected to internal pressure loading ...
Stephen John Hardy   +1 more
doaj   +1 more source

Optimal large time behavior of the 3D rate type viscoelastic fluids

open access: yesAdvances in Nonlinear Analysis
We investigate optimal decay estimates of solutions to the 3D Cauchy problem of the rate type viscoelastic fluids. The main novelty of this article involves three aspects: first, we show that the second-order and third-order spatial derivative of the ...
Chen Yangyang, Zhang Yinghui
doaj   +1 more source

A modification of Silber’s algorithm to derive bounds on Gini’s concentration ratio from grouped observations

open access: yesStatistica, 2007
Silber (1990) devised an algorithm to derive the bounds of Gini’s concentration ratio from grouped data, which does not require information on the limits of the income brackets, the group mean incomes, or the overall mean income. In the case of the upper
Tomson Ogwang, Baotai Wang
doaj   +1 more source

Upper Bounds on Asymptotic Variances of $M$-Estimators of Location

open access: yesThe Annals of Statistics, 1977
If $X_1, \cdots, X_n$ is a random sample from $F(x - \theta)$, where $F$ is an unknown member of a specified class $\mathscr{F}$ of approximately normal symmetric distributions, then an $M$-estimator of the unknown location parameter $\theta$ is obtained by solving the equation $\sum^n_{i=1} \psi(X_i - \hat{\theta}_n) = 0$ for $\hat{\theta}_n$.
openaire   +3 more sources

Nash Estimates and Upper Bounds for Non-homogeneous Kolmogorov Equations [PDF]

open access: yesPotential Analysis, 2017
We prove a Gaussian upper bound for the fundamental solutions of a class of ultra-parabolic equations in divergence form. The bound is independent on the smoothness of the coefficients and generalizes some classical results by Nash, Aronson and Davies. The class considered has relevant applications in the theory of stochastic processes, in physics and ...
LANCONELLI, ALBERTO, PASCUCCI, ANDREA
openaire   +4 more sources

Distributed Monitoring of Robot Swarms with Swarm Signal Temporal Logic

open access: yes, 2020
In this paper, we develop a distributed monitoring framework for robot swarms so that the agents can monitor whether the executions of robot swarms satisfy Swarm Signal Temporal Logic (SwarmSTL) formulas.
Julius, Agung, Yan, Ruixuan
core  

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