Results 31 to 40 of about 15,802 (259)
Realistic noise-tolerant randomness amplification using finite number of devices
Nature Communications, 2016 Quantum mechanics allows to generate nearly ideal random strings from initially weak random sources, important for security of data systems, but this remains elusive in practice.
Fernando G. S. L. Brandão +7 more
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The effects of Covid-19 on the performance of the shares of B3´s sectors
Contextus, 2021 This work has aimed at verifying the behavior of the productive sectors of B3 during the Covid-19 pandemic, considering the period from January 2nd to May 12th, 2020.
Antônio Vinícius Silva Caldas +3 more
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An Approach of Randomness of a Sample Based on Its Weak Ergodic Limit
Journal of Probability and Statistics, 2017 For a Polish Sample Space with a Borel σ-field with a surjective measurable transformation, we define an equivalence relation on sample points according to their ergodic limiting averages.
Jaime A. Londoño
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Weak limits for quantum random walks [PDF]
Physical Review E, 2004 We formulate and prove a general weak limit theorem for quantum random walks in one and more dimensions. With $X_n$ denoting position at time $n$, we show that $X_n/n$ converges weakly as $n \to \infty$ to a certain distribution which is absolutely continuous and of bounded support. The proof is rigorous and makes use of Fourier transform methods. This
Grimmett, Geoffrey +2 more
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Advanced Science, 2022 There is an ever‐increasing demand for next‐generation devices that do not require passwords and are impervious to cloning. For traditional hardware security solutions in edge computing devices, inherent limitations are addressed by physical unclonable ...
Shao‐Xiang Go +5 more
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An Image Encryption Algorithm Based on Logistic-Fibonacci Cascade Chaos and 3D Bit Scrambling
IEEE Access, 2020 Aiming at the problem that the existing bit scrambling encryption algorithm is not sensitive to the bit scrambling between 8 bits of one pixel, and the anti-noise and anti-selective plaintext attack ability is weak, a 3D cyclic shift bit scrambling image
Yuan Guo +4 more
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Weak Randomness in Graphons and Theons
Random Structures & AlgorithmsABSTRACTCall a hereditary family of graphs strongly persistent if there exists a graphon such that in all subgraphons of , is precisely the class of finite graphs that have positive density in . Our first result is a complete characterization of the hereditary families of graphs that are strongly persistent as precisely those that are closed under ...
Leonardo Nagami Coregliano +1 more
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Weak Balance in Random Signed Graphs [PDF]
Internet Mathematics, 2014 In this article, we strengthen some results in our previous work on balance in random signed graphs and study the weak balance. We show that many of the phenomena observed for the balance of random signed graphs extend to weak balance.
Manoussakis, Yannis +2 more
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Advances in Materials Science and Engineering, 2020 The experimental part in this companion paper revealed that the macroscopic mechanical performance of corroded pipes follows a decreasing trend with the increasing corrosion rate.
Feng Liu, Yuchao Yang, Feng Xi
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Criteria for Strong and Weak Random Attractors [PDF]
Journal of Dynamics and Differential Equations, 2009 The theory of random attractors has different notions of attraction, amongst them pullback attraction and weak attraction. We investigate necessary and sufficient conditions for the existence of pullback attractors as well as of weak attractors.
Crauel, Hans +2 more
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