Given symmetric matrices B,D ∈ R n×n and a symmetric positive definite
matrix W ∈ R n×n , maximizingthe sum of the Rayleighquotientx ? Dx andthe gener-
alized Rayleigh quotient
x ? Bx
x ? Wx
on the unit sphere not only is of mathematical interest
in
N400 is a kind of event-related potential (ERP), which is related to language processing of brain and can be used for the evaluation of clinical psychological diseases. There still remain some problems in the accurate N400 waveform extraction from fe
