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解线性约束凸规划的次最优化方法和改进 总被引:1,自引:0,他引:1
1.引 言 关于线性约束下的非线性规划,很多人进行了研究,Zangwill[3] 于1967年提出了次最优化方法,该方法的原理是将原规划问题化为一系列只含有等式约束的子问题求解,最后找到最优解所在的流形,在此流形上使用无约束规划的各种方法求解原问题即可.薛声家[2]1983 相似文献
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Igor Selezov Olga Avramenko Christian Kharif Karsten Trulsen 《Comptes Rendus Mecanique》2003,331(3):197-201
The nonlinear problem for propagation of wave-packets along the interface of two semi-infinite fluids is solved on the basis of multiple scale asymptotic expansions. Unlike all previous investigations dealing only with third-order approximations, here fourth-order approximation is developed. The corresponding solvability condition is obtained and the evolution equation in the case away from the cut-off wave number is derived. As a result, the nonlinear higher-order Schrödinger equation is obtained which contains the nonlinear part in a compact form. This equation is valid for a wide range of wave numbers. The stability diagram shows regions of stability and instability of capillary-gravity wave-packets. To cite this article: I. Selezov et al., C. R. Mecanique 331 (2003). 相似文献
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给出用Matlab编程计算多个未满l次壳层的等效电子LS耦合原子态的矩阵计算方法,具体计算了4f75d电子组态LS耦合原子态的多重谱项的重数. 相似文献
4.
《Comptes Rendus Physique》2019,20(4):275-292
This mini-review presents extensions of the voter model that incorporate various plausible features of real decision-making processes by individuals. Although these generalizations are not calibrated by empirical data, the resulting dynamics are suggestive of realistic collective social behaviors. 相似文献
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This paper develops a Fortran code which is capable to construct the simplest LS eigenfunctions for desired symmetry and determine all permitted atomic LS spectral terms under a given orbital occupancy by implementing and extending the Schaefer and Harris method. Examples (in some cases the most complete set to date) of multiple spectroscopic terms of LS coupling of atomic states for both non-equivalent and equivalent electronic configurations are given. It also corrects a few observed errors from the recent literature. 相似文献
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Sharad Sane 《Designs, Codes and Cryptography》2001,23(3):291-296
A proof of the following conjecture of Jungnickel and Tonchev on quasi-multiple quasi-symmetric designs is given: Let D be a design whose parameter set (v,b,r,k,) equals (v,sv,sk,k, s) for some positive integer s and for some integers v,k, that satisfy (v-1) = k(k-1) (that is, these integers satisfy the parametric feasibility conditions for a symmetric (v,k,)-design). Further assume that D is a quasi-symmetric design, that is D has at most two block intersection numbers. If (k, (s-1)) = 1, then the only way D can be constructed is by taking multiple copies of a symmetric (v,k, )-design. 相似文献
7.
Antony Unwin Pedro Valero-Mora 《Journal of computational and graphical statistics》2018,27(1):157-165
One graphic can convey a lot of information and several graphics linked together in a coherent ensemble can convey even more. This article describes the principles underlying ensemble graphics, their key dimensions, and where they are of most use. Ensemble graphics must have strong common themes and carefully constructed layouts. Appropriate interactive tools are important. Ensembles can be used flexibly for EDA or in a more structured fashion for supporting modeling and for presentations. 相似文献
8.
Chi Tran 《Comptes Rendus Mecanique》2002,330(9):609-614
Optimization theory has advanced considerably during the last three decades as is illustrated by a vast number of published books, surveys, and papers concerning this subject. An optimal decision under uncertainty conditions is dependent on the Engineer's objectives, which may be not known with certainty or represented by natural language. To deal with this problem, in this paper, a new approach based on coupling the existing knowledge of experts and numerical results obtained from traditional optimization techniques is presented using non-conventional logic. To cite this article: C. Tran, C. R. Mecanique 330 (2002) 609–614. 相似文献
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《Comptes Rendus Physique》2016,17(7):778-787
The development of quantum Josephson circuits has created a strong expectation for reliable processing of quantum information. While this progress has already led to various proof-of-principle experiments on small-scale quantum systems, a major scaling step is required towards many-qubit protocols. Fault-tolerant computation with protected logical qubits usually comes at the expense of a significant overhead in the hardware. Each of the involved physical qubits still needs to satisfy the best achieved properties (coherence times, coupling strengths and tunability). Here, and in the aim of addressing alternative approaches to deal with these obstacles, I overview a series of recent theoretical proposals, and the experimental developments following these proposals, to enable a hardware-efficient paradigm for quantum memory protection and universal quantum computation. 相似文献