十月怀胎,一朝分娩。Olympus(奥林巴斯)于2003年3月2日公布的数码单反相机系统“E-System”在今天终于来到我们的面前,他就是E-1。......

In this work,we mainly investigate the problem of complexity for a topologically dynamical system (X,f).We prove that f ......

令X为紧致度量空间,f：X→X为连续映射,讨论正上密度回归点与支撑点的关系,并证明当正上密度回归点集稠密时,可迁系统等价于E系统.......

In this work,we mainly investigate the problem of complexity for a topologically dynamical system(X,f).We prove that f h......