In this paper, the authors discuss the relationship in detail between the rank of M in the modified matrix M = A + BC* and the rank of matrix A. The authors do
The theme of this paper is 1) arguing that foreign language anxiety is a negative factor in English language teaching and learning and 2 ) proposing some sugges
This paper concerns with the Cauchy problem for the nonlinear double dispersive wave equation. By the priori estimates and the method in [9], It proves that the