ON COMPLEMENTS OF NORMALSUB GROUPS OF FINITEGROUPSRELATEDTOMAXIMALSUBGROUPS

在此短文中，我们给出了关于有限群的正规子群之与极大子群有关的补的几个结果     

STUDY ON FUNCTIONAL GROUPS OF CARBON FIBER SURFACE

Rayon-based carbon fibers were anodically oxidized in the presence of a variety of electrolytes. The functional groups produced on carbon fiber surface were characterized by Fourier Transform Infrared Spectroscopy (FTIR). Both K Br pellet spectra and ATR difference spectra indicate that carboxyl and phenolic and carbonyl groups were produced. The acidic groups, carboxyl and phenol, were measured by potentiometrie titration with standard solutions of acid and alkali. The results show that the amount of acidic groups is related to the electrolyte used.     

ON PSEUDO-RIEMANN-HILBERT PROBLEM FOR COMPLEX OVERDETERMIND PARTIAL DIFFERENTIAL SYSTEMS OF FIRST ORDER

Suppose G_j= {z_j||z_j|<1}, G_j= {z_j||z_j|=1},j= 1,2, G_(1 )= {z_1|ε< |z_1|<1},where εisa constant, 0 <ε<1 . We consider the pseudo-Riemann-Hilbert problem;We assume that(i) λis a H lder continuous function on G_1× G_2, and λ≠0; γis a real H lder continuous functionon G_1× G_2, and let H_β(γ) be its bound.(ii) f_j is continuous with respect to (z_1 ,z_2) ∈ _1z× _2 and is holomorphic with respect to W ∈B_R ={W||W|≤R, B is a positive constant}; f_i satisfies compatibility condition.(iii) and and continuous with respect to (z_1,z_2, W) ∈ _1× _2× B_R; f_1,f_2, and satisfyLipschitz condition with respect to W ∈B_R, and let L_R be the Lipschitz constant and K_R be their bound.     

关于Hilbert-Schmidt理想模的Putnam-Fuglede定理的几个注记

本文主要讨论关于Hilbert-Schmidt理想模的Putnam-Fuglede定理的逆问题,证明了若A,B满足:对一切X成立时,A,B必为亚正常算子。本文还包括其它一些结果。     

Toeplitz算子乘积的某些问题

本文给出了S.Axler.S.A chang.D.Sarason下列定理的纯代数的证明“算子H_fH_g是有限秩当且仅当H_f,H_g之一为有限秩的。”     

Szász型算子的若干保持性质

研究了Szasz型算子的特性，得到Szasz型算子相应于原函数的单调性、凸性、H^w类的保持性质。     

三角多项式算子的饱和定理

讨论一类三角多项式算子的饱和问题。     

Heisenberg群上的限制算子

本文在（２ｎ＋１）维Ｈｅｉｓｅｎｂｅｒｇ群上定义了一类限制算子，并在混合范数的Ｌ＾ｐ空间中证明了其有界性。