invariant theory 中文意思是什麼
invariant theory
解釋
不變量理論-
One of the most important, most difficult, and most exasperating unsolved problems of operator theory is the problem of invariant subspaces.
運算元理論中最重要、最困難也最令人煩惱的未解決問題之一就是不變子空間問題。 -
This paper surveys the algorithmic theory of moving frames developed by peter j. olver and m. fels. their applications to geometry, classical invariant theory are indicated
本文較系統地綜述了由peterj . olver和m . fels推廣的活動標架理論。 -
This theory is based on a model for how the structure on one length scale l is related to that on another scale m, with the implicit assumption that the structure is invariant under the renormalization group scale transformation t ( x )
該方法假定在標度變換下系統的結構不變，討論在長度標度l與l下系統結構的關系。 -
First, we take the analysis of phase - plane on the invariant plane for the perturbed and unperturbed systems. next, we applied the singular perturbation theory to establish the persistence of invariant manifolds, as well as the " fiber represent at iones " of these manifolds. finally, by using the global integrable theory of the unperturbed system and melnikov measurement we obtai n the existence of homoclinic orbits for the cqs equation under the generalized parameters conditions
首先，我們在常值平面上對擾動和未擾動系統進行相平面分析；然後利用奇異擾動理論討論不變流形的保持性，並給出不變流形的纖維表示；藉助于未擾動系統的可積結構和melnikov測度，我們得到了三次?五次非線性schr （ -
Frequency using wavelet theory, another is multi - channels based on gray. the first method is based multi - scale decompression using wavelet theory, it extract gray feature from each channel to form feature vector, it can distinguish objects, but this method not have invariant property when object rotate
基於小波的頻率多通道是從小波多分辨分解的角度，提取各頻率通道的灰度特徵形成特徵向量，該方法可以很好的區分目標，但不具有旋轉不變性。 -
Second, based on the theory of synthetic discriminant function, several sub - reference images were synthesized to form the reference image base to realize rotation distortion - invariant recognition, which also solved the ill - problem of synthesizing a single reference image with the whole training distorted images and made the pose estimation easier. third, the phase - encoding and amplitude modulation distortion - invariant jtc for multi - target recognition were described
其次，論文採用綜合識別函數方法構成子參考圖像，建立參考圖像庫的方法解決了目標旋轉畸變不變的識別問題，克服了由大量訓練圖像合成單幅參考圖像時，高頻信息損失嚴重的病態問題，並可實現對真實目標旋轉姿態的估計。 -
Application of the theory of moving frames leads to costruct symmetry - preserving numerical approximations to differential invariants and invariant differential equations
通過應用活動標架理論，我們可以構造出微分不變量和不變微分方程的保對稱數值近似。 -
Optimal control theory often dictates that nonlinear time varying control law be used, even if the basic system is linear and time - invariant
即使系統是線性定常的，最優控制理論通常給出非線性時變控制律。 -
By applying the structure invariant theory in the control strategy, the feedforward - feedback control theory is applied in the control system design to reduce the redundant force
論文從控制系統的結構方面，利用結構不變性原理，針對位置擾動設計專門的前饋補償控制器，減小位置擾動的影響。 -
So how to minish the surplus torque by selecting proper control strategy is a main aspect discussed in this paper. by applying the structure invariant theory in the control strategy, an equivalent structure invariant loading system is produced, which proved to be very effective in reducing the redundant force
論文闡述了多餘力產生的機理，研究了影響多餘力的因素，在控制策略方面，採用了結構不變性原理，建立加載系統等效的結構不變性系統，從根本上來減小多餘力的影響。 -
Based on the existing theoretical results on model predictive control, this thesis is devoted to the development of the framework of robust model predictive control with guaranteed robust feasibility, roboust stability and real - time applicability. to achieve this goal, the relevant theory and approaches, such as linear matrix inequalities ( lmi ), robust controllable invariant set, robust controllable contractive set and multi - parameter linear programming, are employed in the research work
本論文在預測控制理論已有研究成果的基礎上，利用線性矩陣不等式、魯棒可控不變集、魯棒可控收縮集、多參線性規劃等相關理論和方法，探索具有可行性、穩定性和一定實時性保證的魯棒預測控制設計框架。 -
If the optical system with ccd sensor is regarded as a spatially invariant linear system, the convolution of point spread function and the object image results in error on theory. since ccd sensor imaging is digital imaging, in this article, the image quality and resolution of the ccd sensor imaging is simulated and analyzed
鑒于ccd探測器成像是數字化成像，所以本文採用計算機模擬和ccd相機模擬成像試驗及理論分析的方法對ccd探測器的目標影像的分辨力與ccd像元分辨力的關系及像質進行了研究並獲得如下主要結論。 -
The invariant mass spectrum of dimuons can be used to examine the suppression of j / production. j / w consists of quark and anti - quark. its size is small enough that perturbative theory is meaningful and is not small enough that non - perturbative effect can be completely ignored
它由夸克和反夸克組成，它的尺寸足夠小從而微擾理論有意義，但是j的尺寸又沒有小到非微擾效應完全可以忽略的程度，因此j介於微擾的夸克和膠子以及非微擾的強子之間。
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