- [計(jì)] 極大數(shù)
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maximal number中文什么意思
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- the properties of maximal fan designs in relation to structural characters and maximal number of maximal fan designs are obtained
摘要研究了最大扇設(shè)計(jì)有關(guān)結(jié)構(gòu)特征和最大個數(shù)的性質(zhì)。 - at the end of this paper we talk about the question of the maximal number of limit cycles in quadratic system and some applied uses in ecological circumstances
在本文的最后略為涉及hilbert第十六問題中的極限環(huán)的個數(shù)問題及其在生態(tài)環(huán)境上的應(yīng)用。 - though the temporal projection, the maximal number of the signals this method can deal with is much more than present algorithms with a small cost
該算法通過時域投影對信號進(jìn)行預(yù)處理，先從時域上對信號進(jìn)行粗分，從而以較小的代價(jià)換取大信號數(shù)情況下算法性能的改善。 - in this way, we solve the open problem of hofbauer and so partially, and give an negative answer to their conjecture about the maximal number of the limit cycles in such systems . at the same time, we construct the examples of a non-competitive and a prey-predator three dimensional lotka-volterra system with two limit cycles
給出了hofbauer和so的一個公開問題的解答，否定了他們關(guān)于三維lotka-volterra競爭系統(tǒng)極限環(huán)最大個數(shù)的猜想，同時給出了非競爭三維系統(tǒng)以及捕食系統(tǒng)存在兩個極限環(huán)的例子 - the paper consists of two parts . in the first part, the definitions of zq-equivariant vector fields and the method of detection functions are stated . in the second part, a concrete numerical example of z8-equivariant perturbed planar hamiltonian system of of degree 7 is constructed, and for the unperturbed vector field having maximal number of centers, its global phase portraits are analyzed
本文由兩部分組成，第一部分為綜述，介紹了z_q-等變向量場以及判定函數(shù)法；第二部分首先討論了一類7次z_8-等變的平面hamilton系統(tǒng)，研究了具有最大中心數(shù)時的hamilton系統(tǒng)可能存在的部分全局象圖。