Quaternion space

Mixed totally umbilical QR-submanifolds in a quaternionic space form;

四元数空间形式中混合型全拟脐QR-子流形(英文)

We study the Riemann-Hilbert boundary value problems for some classes of hyperbolic equations in commutative quaternion algebra space with basis elements 1,i,j,k satisfying the relationship i~2=j~2=-1,ij=ji=k,and obtain the general solutions and the solvable conditions of the problems respectively in different cases.

考察了在可交换四元数空间(基元为1,i,j,k满足条件i~2=j~2=-1,ij=ji= k)中的某些双曲型方程的Riemann-Hilbert边值问题,分别在不同的情况下获得了问题的可解条件和通解。

Three series of quaternary rare earth complexes [Ln( x MBA) 2(NO 3)(Phen)] 2(Ln=La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,Er;MBA=CH 3C 6H 4COO -)were synthesized in ethanol/water solution system with slight acidity, the products were characterized by elemental analysis, IR,UV,DTA TG and 1H NMR, the ESR spectra of three Gd complexes and fluorescence spectra of three Eu complexes were determined.

在酸性介质 ,乙醇 /水混合溶剂中合成得到了三个系列的四元混配配合物 [Ln(x- MBA) 2(NO3) (Phen) ]2 (Ln=La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Er;MBA=CH3C6H4 COO-)。

Solution of Forecasting-Correcting-Improving Algorithm to Quaternion Differential Equation of SINS Attitude;

基于预测-校正-改进算法解算SINS姿态的四元数微分方程

Research on the Quaternion Feedback Linearization for Spacecraft Attitude Control;

基于四元数反馈线性化的飞行器姿态控制方法研究

Cubic nonlinear phase coupling analyse of two-dimensional harmonic based on quaternion;

基于四元数模型的二维三次非线性相位耦合频率估计方法