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- Existence of almost periodic solutions for a class of pendular equations. 一類(lèi)擺動(dòng)方程概周期解的存在性。
- Almost periodic function on a group 群上的殆周期函數
- By using properties of scalar almost periodic function, properties of uniform almost periodic matrix function are discussed. 摘要利用純量概周期函數性質(zhì)討論了一致概周期矩陣函數的一些性質(zhì)。
- Since H. Bohr proposed the theory of almost periodic function, this field has been developed greatly. Bohr提出概周期函數理論以來(lái);這一領(lǐng)域得到了很大的發(fā)展;其發(fā)展過(guò)程的一個(gè)主要特點(diǎn)就是其函數范圍不斷擴大.
- Methods To use TCD to examine 138 pilots vascular headache patients divided into attack period group(41 cases)and interval period group(97 cases)with analysing results. 方法對138例飛行員血管性頭痛患者分為發(fā)作期組(41例)和間歇期組(97例)做TCD檢測,分析其結果。
- The authors investigate the Fourier series of Weyl almost periodic functions by the new definition and prove the Parseval's equality. 通過(guò)新形式的定義研究范爾概周期函數的傅立葉級數和帕塞瓦爾等式。
- A nonlinear Volterra integrodifferential equation is investigated. The existence and uniqueness of almost periodic solutions for the equation is obtained. 研究非線(xiàn)性Volterra方程概周期解,得到方程存在唯一概周期解的一組充分條件。
- Using the method of topological degree, we prove the existences of positive almost periodic solutions for a generalizaed infectious diseases model equation. 摘要給出推廣的傳染病方程正概周期解存在的一個(gè)定理,并用拓撲度方法給出簡(jiǎn)潔的證明。
- The computation of lyapunov exponent with different parameters shows that there were double periodic, almost periodic and chaotic motion behavior in this system. 通過(guò)對系統李雅普諾夫指數的計算,發(fā)現了該系統存在倍周期、概周期運動(dòng)以及混沌運動(dòng)現象。
- Another definition of Weyl almost periodic functions is introduced by using trigonometric polynomial. it is proven that the equivalence of these two definitions. 摘要利用三角多項式給出范爾概周期函數新形式的定義,并證明兩個(gè)定義方式的等價(jià)性。
- We present existence theorem for pseudo almost periodic solutions with piecewise constant argument by means of unique decomposite character and for pseudo almost periodic sequence solutions of relevent difference equations. 摘要利用偽概周期函數唯一分解性質(zhì),研究相關(guān)差分方程的偽概周期序列解,并以此為工具得出一類(lèi)帶逐段常變量微分方程偽概周期解的存在唯一性。
- The results of Berger and Chen are extended. And the variational method is proved to be available to solve the existence and uniqueness of the almost periodic solutions of nonlinear Duffing equations with damping. 推廣了Berger和Chen的結果,證明了經(jīng)典的變分方法對于解決帶阻尼的非線(xiàn)性Duffing方程有界解的存在唯一性問(wèn)題是同樣適用的。
- The present paper is concerned with the module containment of almost periodic solution for a nonautonomous, singularly perturbed differential equations with piecewise constant argument. 提示:該介紹信息是由機器自動(dòng)翻譯完成,我們不保證機器翻譯的正確度,也不對由于內容的誤譯或者客戶(hù)對它的錯誤使用所引起的任何直接的,或間接的可能的問(wèn)題負責。
- For a dynamic system, if there is a (quasi) weakly almost periodic point but not an almost periodic point, then there exists a subsystem which is chaotic in the sense of revised Devaney. 摘要得到一個(gè)動(dòng)力系統如果存在非幾乎周期的(擬)弱幾乎周期點(diǎn),則存在子系統在修改的狄萬(wàn)內意義下是混沌的。
- The optimal filtration of periodic group by least square method 最小二乘法對多周期函數的周期篩選優(yōu)化
- It's almost impossible to agree on a unified basic price. 幾乎不可能商定一個(gè)劃一的基本價(jià)格。
- The chimney is almost choked up with soot. 煙囪幾乎被煙垢堵住了。
- The shack seemed almost ready to collapse. 那小屋子好像是快要倒塌了。
- I almost forget to pay the phone bill. 我幾乎忘記電話(huà)費用。
- As good almost kill a man as kill a good book. 毀掉一本好書(shū)與殺人無(wú)異。