1) multiple positive solution
多正解
1.
An existence theorem of multiple positive solutions for higher order nonlinear neutral system of difference equations;
高阶非线性中立型差分方程组多正解的一个存在定理
2.
In this paper,by using the fixed point index theory,we obtain an existence criteria for multiple positive solution of high order non-autonomous nonlinear neutral difference equation.
利用不动点指数理论 ,得到了高阶非自治非线性中立型差分方程多正解的存在性准则 ,推广了有关文献中的相关结
2) multiple positive solutions
多正解
1.
In this paper, by using the fixed point index theory, we obtain an existence criteria for multiple positive solutions of semi-autonomous nonlinear neutral difference equation.
构造了准自制非线性中立型差分方程的多正解存在性的一个充分性判据,并利用不动点指数理论,证明了这个差分方程多正解的存在性。
3) multiple positive solution
多重正解
1.
<Abstrcat>In this paper,we use the fixed point index theory to investigate the existence of multiple positive solutions for some singular semi-positone m-point boundary value problems of higher order differential equations.
我们利用不动点指数理论研究高阶微分方程奇异半正的m 点边值问题多重正解的存在性。
2.
We used the fixed point index theorem in a cone to investigate the existence of multiple positive solutions for boundary value problem of a second-order singular functional differential equation of mixed type.
本文把Ｚｈａｏｌｉ Ｌｉｕ［１］和Ｅｒｂｅ等人［２］关于常微分方程边值问题多重正解的工作推广到二阶奇异混合型泛函微分方程边值问题，证明了所考虑的方程边值问题存在至少两个正解的充分条件。
4) multiple positive solutions
多重正解
1.
Positive solution and multiple positive solutions of singular boundary value problems of fourth order differential equations;
四阶奇异边值问题的正解和多重正解
2.
Existence of multiple positive solutions for a class of nonlinear singular boundary value problems;
一类非线性奇异边值问题多重正解的存在性
3.
Using the fixed point theorem on cones, some results are obtained on the existence of at least one and multiple positive solutions for nonlinear singular impulsive boundary value problems in Banach space.
通过构造一个特殊的算子,利用锥拉伸和锥压缩不动点理论,研究了Banach空间中一类奇异脉冲微分方程边值问题的正解及多重正解的存在性。
5) multiple positive solutions
多个正解
1.
We employed the fixed-point theorem of cone expansion and compression to discuss the existence of multiple positive solutions of the following third-order three-point boundary value problemsu(t)+a(t)f(t,u(t))=0, 0
通过利用锥上的不动点定理讨论了下列三阶三点边值问题u(t)+a(t)f(t,u(t))=0,0
2.
We employed the fixed-point theorem to obtain a sufficient condition of the existence of multiple positive solutions for a class of singular second-order three-point boundary value problem, u″(t)+a(t)f(u)=0,0
本文应用不动点指数定理得到了奇异非线性三点边值问题u″(t)+a(t)f(u)=0,0
6) regular polygon solution
正多边形解
补充资料：多苯基多亚甲基多异氰酸酯
多苯基多亚甲基多异氰酸酯，简称PAPI，或称粗MDI，浅黄色至褐色粘稠液体．有刺激性气味。相对密度(20℃／20 ℃)1．2，燃点218℃。PAPI实际上是由50％MDI与50％官能度大于2以上的多异氰酸酯组成的混合物。升温时能发生自聚作用。溶于氯苯、邻二氯苯、甲苯等。PAPI的活性低，蒸气压低，只是TDI的百分之一，故毒性很低。
用于制造聚氨脂胶粘剂。也可直接加入橡胶胶粘剂中，改善橡胶与尼龙或聚酯线的粘接性能。贮存于阴凉、通风、干燥的库房内，远离火种、热源。严格防水、防潮，避免光照。
用于制造聚氨脂胶粘剂。也可直接加入橡胶胶粘剂中，改善橡胶与尼龙或聚酯线的粘接性能。贮存于阴凉、通风、干燥的库房内，远离火种、热源。严格防水、防潮，避免光照。
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参考词条