parabolic approximation 中文意思是什麼

parabolic approximation 解釋
拋物線逼近法
  • parabolic : 1. 比喻的;寓言似的。2. 拋物線(狀)的。
  • approximation : n. 1. 接近;近似。2. 【數學】近似值。3. 概算,略計。
  1. The approximation of the parabolic integro - differential equations is studied with anisotropic biquadratic finite element

    摘要研究具有各向異性特徵的雙二次元對拋物積分微分方程進行了逼近。
  2. 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。
  3. A parabolic regularity ( viscosity method ) and difference schemes in the rectangle mesh is constructed and convergence rata is obtained in the norm l1. his approximation method is lately called kuznetsov approximation t

    85 ]得到補償緊引理,並推得著名的div一curl引理,他給出了當一致l加估計序列的任意嫡消失測度在式
  4. In this thesis, we study ultraconvergence of finite element approximation in one dimensional case ( include two - point boundary value problem, one dimensional parabolic equation and parabolic type integro - differential equation )

    本文研究一維問題(包括兩點邊值問題,一維拋物問題及拋物型積分-微分方程)有限元逼近的強超收斂性。
  5. To illustrate the superiority of this type of transition, the author adapted the local normal mode ( lnm ) based on couple - mode theory to explain the coupling between two lowest order modes along the transition. for the two important parameters, propagation constants difference between the two modes apy and mode coupling coefficient cy, which denoting power coupling between lnms, the approximation expressions using structure parameters were worked out. then the author compared three typical different transitions according to the demanding of power coupling, at last concluded that the parabolic - type transition can transport the light in shortest length with lowest loss

    對于表徵局部標準模之間功率耦合的兩個重要的參數_ ( ij ) (模式傳播常數差)和c _ ( ij ) (模式耦合系數) ,推導了用器件結構參數表達的近似公式,然後根據功率耦合的需求,在常見的三種不同輪廓的過渡區之間進行了比較,得出了拋物形輪廓過渡區能夠使光束在最短尺寸內以最低損耗通過波導的結論。
  6. A convergence estimate and approximation for a kind of parabolic variational inequality is discussed

    摘要本文討論了一類拋物型變分不等式的近似收斂問題。
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