Results 31 to 40 of about 425,748 (301)
On Sequences Without Short Zero-Sum Subsequences
The Electronic Journal of Combinatorics, 2023 Let $G$ be a finite abelian group. It is well known that every sequence $S$ over $G$ of length at least $|G|$ contains a zero-sum subsequence of length at most $\mathsf{h}(S)$, where $\mathsf{h}(S)$ is the maximal multiplicity of elements occurring in $S$.
Xiangneng Zeng, Pingzhi Yuan
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Zhejiang dianli, 2023 In order to use the existing hardware sources to improve the line selection performance of single-phase grounding fault of small resistance grounding systems， a method for line selection of single-phase grounding fault based on the global steady-state ...
LIU Jian +4 more
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On Sequences with Zero Autocorrelation and Orthogonal Designs
Journal of Combinatorial Theory, Series A, 2001 An orthogonal design of order \(n\) and type \((s_1, s_2,\dots, s_n)\) \((s_i> 0)\), denoted \(\text{OD}(n; s_1,s_2,\dots, s_n)\), on the commuting variables \(x_1,x_2,\dots, x_n\) is an \(n\times n\) matrix \(A\) with entries in \(\{0,\pm x_1,\dots,\pm x_n\}\) such that \[ AA^T= \Biggl(\sum^n_{i=1} s_i x^2_i\Biggr) I_n.
Stelios Georgiou, Christos Koukouvinos
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Applied Sciences, 2020 In microgrids, paralleled converters can increase the system capacity and conversion efficiency but also generate zero-sequence circulating current, which will distort the AC-side current and increase power losses.
Zhao Han +3 more
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Energies, 2022 With the continuous penetration and development of renewable energy power generation, distributed grids and microgrids are becoming increasingly important in power systems.
Guoli Feng +4 more
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Sequence Subsums in Zero-Sum Theory
, 2021 The last few years have seen the development and improvement of structural results in the area of sequence subsums over abelian groups. These results often have the flavor that either many elements can be represented as a sum of terms from  a ...
Grynkiewicz, David
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Inductive Methods and Zero-Sum Free Sequences [PDF]
Integers, 2009 AbstractA fairly long-standing conjecture is that the Davenport constant of a groupWe also prove the conjecture for groups of the form ...
Bhowmik, Gautami +2 more
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Zero sequence behaviour of a double-circuit overhead line
, 2014 tPositive, negative and zero sequence series impedances (in /km units) are the first step for power flowand short circuit analyses and are also necessary for setting the distance relays.
DAMBONE SESSA, SEBASTIAN +6 more
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REMARKS ON TINY ZERO-SUM SEQUENCES
, 2014 See the abstract in the attached ...
Yushuang Fan +4 more
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New Constructions of Zero-Correlation Zone Sequences [PDF]
IEEE Transactions on Information Theory, 2013 In this paper, we propose three classes of systematic approaches for constructing zero correlation zone (ZCZ) sequence families. In most cases, these approaches are capable of generating sequence families that achieve the upper bounds on the family size ($K$) and the ZCZ width ($T$) for a given sequence period ($N$).
Yen-Cheng Liu, Ching-Wei Chen, Yu T. Su
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