<正>The recurrence algorithm is given for the calculation of NUAH B-splines in the space Sn+1 = span{sinh t, cosh t,tn-3,...,t2.t, 1} (n≥3). The case of NUAH B
<正>Split-step Padémethod and split-step fourier method are applied to the higher- order nonlinear Schrdinger equation.It is proved that a combination of
<正>A structured perturbation analysis of the least squares problem is considered in this paper.The new error bound proves to be sharper than that for general p
<正>In this paper, a switching method for unconstrained minimization is proposed. The method is based on the modified BFGS method and the modified SR1 method. T