余切

本文研究了光场余切态的振幅k（k≥2）次方压缩特性，发现余切态也存在这类压缩，并在一定参数范围内，呈现高度压缩效应；

The amplitude Kth-power squeezing properties of cotangent states of light field are researched . It is found that this kind of squeezing also exist in the cotangent states and that under certain rang of parameter they appear high degree squeezing effect .

文献[3]和文献[4]中的孤波解是用双曲正切表达的孤波解，本文则是由正切函数变换出发而得到的双曲余切表达的Fisher方程的新孤波解。

The solitary wave solutions in Literature 1 and 2 are expressed by hyperbola tangent , while this paper proposes a new kind of solitary wave solution of Fisher Equation by using hyperbola cotangent derived from tangent function variation .

余切丛上辛向量场的有关讨论

Discussion with relation to symplectic vector field on the cotangent bundle

余切丛上判定辛向量场的等价命题

Equivalent propositions for judging symplectic vector field on the cotangent bundle

它实际上代表了辙叉角的余切值。

It actually represents the Frog Kok of Cotangent value .

关于余切数论函数的级数表示

On the Series Expression of Number Theory Function of Cotangent

集值映射的弱余切广义梯度及应用

Weak contingent generalized gradient and its application to set-valued mapping

李群的余切丛上的两种辛群胚结构

Two kinds of symplectic groupoids structure on the cotangent bundle of Lie group

模糊数值正切函数与余切函数

The Fuzzy Numerical Tangent Function and Cotangent Function

通过新提出的余切关系定理，解决了单站纯方位观测的非线性问题。

A new cotangent theorem is deduced to solve the nonlinearity for bearing-only measurement .

基于弦内角余切参数的三角剖分算法

Triangulation Based on Angle-of-Chord Cotangent Parameters Rule

返回给定浮点表达式中以弧度表示的指定角度的三角余切

Returns the trigonometric cotangent of the specified angle ( in radians ) in the given float expression

本文研究了李群的余切丛上的辛群胚结构。

In this paper , we study the symplectic groupoids structure on the cotangent bundle of Lie group .

根据所提出的余切关系定理，实现了纯方位观测的直线运动目标跟踪。

According to the author 's Cotangent relations theorem , bearings-only target tracking with linear motion is achieved .

借助集值映射的余切上图导数，给出了集值优化问题取得极小解和严格极小解的充分条件。

With contingent epiderivative of set-valued mapping , we gain the sufficient conditions of minimal solution and strict minimal solution of set-valued optimization problem .

给出了集值映射的弱次微分与弱余切广义梯度的关系，并且借助弱余切广义梯度得到了集值优化问题的一个最优性条件。

The problem of the existence of a cone subdifferential for the cone convex set valued maps in the locally convex , linear and topological vector space is discussed .

本文作者研究了Riemann-ξ函数与余切函数的关系，并通过余切函数的幂与其导函数的关系，得到了一个关于Riemann-ξ函数的恒等式，推广了文[1]的结果。

In this paper , the author studies the relations between Riemann - ζ function and cotangent function , and obtains an identity involving Riemann - ζ function through the relation between cotangent functional power and its differential function , developing the result of article ( 1 ) .