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- As annotation, an equation of the relation between neutrons and protons in nuclei and its periodical solutions as well as atomic number limit are discussed. 作为诠释，探讨了原子核内中子与质子的趋势关系方程，以及其周期解和原子序数极限值。
- The global inverse function theorem is applied for the existence and uniqueness of periodical solutions to the semilinear boundary value problems. Some results are improved. 摘要本文运用整体反函数理论证明了一类半线性方程边值问题周期解的存在唯一性，推广和改进了已有的一些结果。
- The mathematicians turned to culling periodic solutions. 数学家们转而去挑选周期解。
- Existence of almost periodic solutions for a class of pendular equations. 一类摆动方程概周期解的存在性。
- An existence theorem is obtained for the periodic solutions of Lagrangian systems by the least action principle. 用极小作用原理得到了非自治Lagrange系统周期解的一个存在性定理.
- The existence of periodic solutions of a neutral integro-differential equation with infinite delay was studied. 摘要本文考虑具无穷时滞中立型积分微分方程周期解的存在性。
- There are many significantachievements on basic theory, stability theory, period solution theory and bifurcation theoryof delay differential systems. 在基本理论、稳定性理论、周期解理论、分歧理论等许多方面都出现了重要的成果。
- A energy iteration method for periodic solutions to second order strongly nonlinear non-autonomous systems is suggested. 摘要给出了确定一般二阶强非线性非自治系统周期解的能量迭代方法。
- Weng,P.& Liang,M.,The existence and behaviour of periodic solutions of Hematcpoiesis model [J],Mathematica Applicate,8(1995),434-439. 黄启昌;具有无限时滞的泛函微分方程的周期解的存在性[J];中国科学;14A:10(1984);882889.
- Furthermore, the direction and stability of bifurcating periodic solutions are investigated by normal form and center manifold theory. 然后，应用规范型和中心流形理论，得到关于确定Hopf分支方向和分支周期稳定性的计算公式。
- We discuss the existence of asymptotically periodic solutions for a class of nonlinear differential equations combining dissipative type conditions. 结合耗散型条件;讨论一类非线性微分方程渐近概周期解的存在性.
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- By using critical point theory,we obtain some sufficient conditions for the existence of multiple periodic solutions to a discrete Hamiltonian system. 本文利用临界点理论;建立了一类离散哈密顿系统存在多个周期解的一些充分条件.
- Reader's Digest is a periodical. 《读者文摘》是一种期刊。
- The existence and stability of periodic solutions of a neutral integro-differential equation with infinite delay were studied. 摘要本文考虑具无穷时滞中立型积分微分方程周期解的存在性与稳定性。
- I expect regular periodical reports from you. 我期待你定期汇报。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- A nonlinear Volterra integrodifferential equation is investigated. The existence and uniqueness of almost periodic solutions for the equation is obtained. 研究非线性Volterra方程概周期解,得到方程存在唯一概周期解的一组充分条件。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
