Results 11 to 20 of about 975,846 (299)

Polynomial chaos expansion for permutation and cyclic permutation invariant systems: Application to mistuned bladed disks

open access: yesJournal of Sound and Vibration, 2021
This article deals with the stochastic modeling of industrial mistuned bladed disks. More specifically, a cost-efficient implementation of polynomial chaos expansion is proposed, it is dedicated to mathematical systems exhibiting permutation invariance ...
Juliette Dréau   +3 more
semanticscholar   +3 more sources

Intelligent Fault Detection for Rotating Machinery Using Cyclic Morphological Modulation Spectrum and Hierarchical Teager Permutation Entropy

open access: yesIEEE Transactions on Industrial Informatics, 2023
Intelligent fault detection of rotating machines is essentially a pattern classification issue. At the same time, effectively obtaining fault features from the measured signals is a key step to timely diagnose the health status of rotating machinery and ...
Junchao Guo, Qingbo He, D. Zhen, F. Gu
semanticscholar   +3 more sources

Minimal faithful quasi-permutation representation degree of p-groups with cyclic center [PDF]

open access: yesProceedings of the Indian Academy of Sciences: Mathematical Sciences, 2023
For a finite group G , we denote by $$\mu (G)$$ μ ( G ) and c ( G ), the minimal degree of faithful permutation representation of G , and the minimal degree of faithful representation of G by quasi-permutation matrices over the complex field $$\mathbb {C}
Sunil Kumar Prajapati, Ayush Udeep
semanticscholar   +3 more sources

MixCycle: Unsupervised Speech Separation via Cyclic Mixture Permutation Invariant Training [PDF]

open access: yesIEEE Signal Processing Letters, 2022
We introduce two unsupervised source separation methods, which involve self-supervised training from single-channel two-source speech mixtures. Our first method, mixture permutation invariant training (MixPIT), enables learning a neural network model ...
Ertuğ Karamatlı, S. Kırbız
semanticscholar   +3 more sources

Graphical representations of cyclic permutation groups

open access: yesDiscrete Applied Mathematics, 2020
In this paper we prove that a permutation group A generated by a single permutation σ is an automorphism group of an edge-colored graph if and only if for every orbit O of σ with cardinality | O | ≥ 3 there exists another orbit O ′ of σ such that gcd ( |
Mariusz Grech, A. Kisielewicz
semanticscholar   +3 more sources

Full C-Band 3060-km DMD-Unmanaged 3-Mode Transmission With 40.2-Tb/s Capacity Using Cyclic Mode Permutation

open access: yesJournal of Lightwave Technology, 2020
We have achieved the longest three mode-multiplexed full C-band transmission yet attained over 3060 km. In wideband mode-multiplexed transmission over weakly-coupled fewmode fibers (FMFs), the width of signal impulse responses is dependent on wavelength,
K. Shibahara   +7 more
semanticscholar   +3 more sources

Cyclic Permutation Groups that are Automorphism Groups of Graphs

open access: yesGraphs and Combinatorics, 2019
In this paper we establish conditions for a permutation group generated by a single permutation to be an automorphism group of a graph. This solves the so called concrete version of König’s problem for the case of cyclic groups. We establish also similar
Mariusz Grech, A. Kisielewicz
semanticscholar   +3 more sources

Generating a random cyclic permutation [PDF]

open access: yesBIT, 1986
We prove correct an algorithm that, given \(n>0\), stores in array b[0..n- 1] a random cyclic permutation of the integers in 0..n-1, with each cyclic permutation having equal probability of being stored in b. The algorithm was developed by Sattolo; our contribution is to present a more convincing proof using standard program-proving methods.
D. Gries, Jinyun Xue
semanticscholar   +3 more sources

Modular Vector Invariants of Cyclic Permutation Representations

open access: yesCanadian Mathematical Bulletin, 1999
AbstractVector invariants of finite groups (see the introduction for an explanation of the terminology) have often been used to illustrate the difficulties of invariant theory in the modular case: see, e.g., [1], [2], [4], [7], [11] and [12]. It is therefore all the more surprising that the unpleasant properties of these invariants may be derived from ...
Larry Smith
semanticscholar   +3 more sources

The crossing numbers of join products of paths with three graphs of order five [PDF]

open access: yesOpuscula Mathematica, 2022
The main aim of this paper is to give the crossing number of the join product \(G^\ast+P_n\) for the disconnected graph \(G^\ast\) of order five consisting of the complete graph \(K_4\) and one isolated vertex, where \(P_n\) is the path on \(n\) vertices.
Michal Staš, Mária Švecová
doaj   +1 more source

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