Abstract In this article we briefly studied the fictitious domain methods for steady and nonsteady Navier-Stokes equations based on Penalty factorεon the exten
In this paper the unsolvability of generalized inverse eigenvalue problems almost everywhere is discussed.We first give the definitions for the unsolvability of
The purpose of this paper is to study the stability and approximation properties of Ritz-Volterra projection. Through constructing a new type of Green functions
Let A be an n×n real symmetric matrix. A is called completely positive (denote A∈CP_n) if A=B’B for some m×n nonnegative matrix B where m is an inte