approximation theorem 中文意思是什麼

approximation theorem 解釋
逼近定理
  • approximation : n. 1. 接近；近似。2. 【數學】近似值。3. 概算，略計。
  • theorem : n. 1. （能證明的）一般原理，公理，定律，法則。2. 【數學】定理。
  1. There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry. now, we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter, where q is an up or down quark field. on the one hand, from the experimetal data, it is found that < qq > vac = - ( 225 25mev ) 3, on the other hand, with the hellmann - feynman theorem, quark condensate can be evaluated on the hadronic level. in this paper, we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change. it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter. because nertron stars are homogeneous and at very low temperature, we will use the mean - field approximation and zero temperature throughout this paper

    鑒于已有大量文獻討論了核物質中的夸克凝聚，本文將討論在奇異物質中的夸克凝聚。而在介質中的夸克凝聚的基本公式可由hellmann - feynman理論導出，所以運用手征對稱自發破缺拉氏量以及平均場近似，我們就可以討論在奇異物質中的夸克凝聚，由所計算的結果表明： （ 1 ）奇異物質中的夸克凝聚隨奇異物質密度的增大而單調減小。 （ 2 ） -凝聚的出現對衰減率有影響。
  2. Approximation theorem for meyer - konig - zeller operator

    運算元的逼近定理
  3. In chapter ii we give the representation theorem of the anisotropic class besov and get the estimation of m - term approximation of it. in chaper iii the rate of m - term approximation of the anisotropic low smooth class is camputated

    在第二章先給出了各向異性besov類的表現定理，求出它的m項三角逼近的漸進階，並給出定理應用。
  4. Second part, using approximation method and implicit function theorem, we obtain the existence of large amplitude 2 - periodic bouncing for damped linear impact osillator with mutiple impacts in one period

    在第二部分里，我們運用逼近框架與隱函數定理，對于帶小阻尼的線性碰撞振子，證明了在一周期內發生多次碰撞的大振幅2 -周期解的存在性。
  5. The direct and inverse theorem of weighted approximation by generalized baskakov operator

    運算元加權逼近的正逆定理
  6. In the first part, the simultaneous approximation of this kind of operators is studied ; in the second part the approximation in c [ 0, ) of their linear combination is discussed. absorbing the method of paper [ 20 ], the inverse theorem of a new kind of linear combination operators is obtained in the third part

    第一節研究這類運算元的同時逼近；第二節討論該運算元線性組合在c _ [ 0 ， ）上的逼近；第三節吸收[ 20 ]的思想，得到了該運算元線性組合逼近的逆定理；第四節討論該線性組合運算元在c _ [ 0 ， ）逼近的飽和定理。
  7. In the third part, for a class of parabolic integro - differential equations we obtained ultra - approximation between u and its ritz - volterra projection which leads to a ultraconvergence alternating theorem

    最後，我們對一類拋物型積分-微分方程獲得了真解與ritz - volterra投影之間的強超逼近估計，並在此基礎上得到了一個強超收斂二擇一定理。
  8. Iterative approximation theorem on solutions to nonlinear strongly accretive operator equations

    非線性強增生運算元方程解的迭代逼近定理
  9. A theorem of iterative approximation of zero point for maximal monotone operator in banach space

    空間中極大單調運算元零點的迭代逼近定理
  10. In this paper, we use the coupled fixed point theorem for mixed monotone condensing operators to obtain an existence, uniqueness and iterative approximation theorem of solutions of initial value problems for second order mixed monotone type of impulsive differential equations

    利用混合單調凝聚運算元的耦合不動點定理，給出了二階混合單調型脈沖微分方程的初值問題的解的存在唯一性及迭代逼近定理
  11. Equivalent theorem of approximation by two - dimensional generalized baskakov operators

    運算元的逼近等價定理
  12. Equivalence theorem on simultaneous approximation by the linear combination of bernstein type operators

    型運算元線性組合的同時逼近等價定理
  13. Coincidence points theorem in best approximation

    重疊點定理在最佳逼近中的應用
  14. The paper combines artificial neural network, fuzzy inference system, system identification, and does a thorough research on fuzzy - neural network. the research results are as follows : in this paper, we propose a new neuro - fuzzy systems with laplace ( probability density function ) membership function, and proved its universal approximation property by using weierstrass theorem. we get excellent modeling results for nonlinear systems by applying the new neuro - fuzzy model

    本文融合了人工神經網路、模糊推理系統、系統辨識等理論，並圍繞神經網路和模糊推理的結合體? ?模糊神經網路，展開了深入地研究，主要完成了如下研究工作：本文提出一種新型的帶laplace （概率密度函數）型隸屬函數的模糊神經網路模型，並應用微分中值定理和weierstrass定理證明它的通用逼近性。
  15. Secondly, using the relation between the weighted modified k - functional, the weighted modulus of smoothness, the weighted main - part modulus of smoothness. we get the pointwise direct and inverse approximation theorem with jacobi weight for s ' zdsz - kantorovich operator. thus some results on w ( x ) = 0 ( w ( x ) denotes the weight function ), ditzian - totik modulus and classic modulus are extend

    其次，引入一種改變的帶權k -泛函，利用帶權光滑模和帶權主部光滑的關系及帶權光滑模與改變帶權k -泛函的等價性，關于sz sz - kantorovich運算元，討論了一階矩不為零的運算元的點態帶jacobi權逼近正定理及等價定理，推廣了已有的權為零及ditzian - totik光滑模和古典光滑模的結果。
  16. Since the wavelets possess symmetry and intrepolation, the sampling theorem on approximation subspace is established easily

    用該方法構造出的小波具有插值性和對稱性，因而容易建立信號采樣定理。
  17. Algebraic properties and convergence theorem of function - valued pad 233 ; - type approximation used for integral equations solution

    型逼近的代數性質和收斂性定理
分享友人
分享到 Line

分享到臉書