Gladys Elsa McArthur Strang (Mrs Scarlett)

Diagnostic Teaching: Gladys

she was seven months until she was three and one-half years old. During that time she was apparently excused for everything that she did on the grounds that she was not well, and the natural consequence was that she now exhibits the behavior of a completely spoiled child. Even now, after she had been in kindergarten several months, she seemed to have no idea that she must obey orders whether sh...

Quality streak by Bob Scarlett

Brain Elsa

Generalized circulant Strang-type preconditioners

SUMMARY Strang's proposal to use a circulant preconditioner for linear systems of equations with a Hermitian positive definite Toeplitz matrix has given rise to considerable research on circulant preconditioners. This paper presents an {e iϕ }-circulant Strang-type preconditioner.

The Strang and Fix Conditions

Then Strang and Fix conditions are recalled and proved. The Strang and Fix conditions caracterize the approximating properties of a shift invariant localized operator by its ability to reconstruct polynomials. In particular, it is used to relate the number of vanishing moments of a wavelet to the order of approximation provided by the corresponding multiresolution analysis. Article [1] is gener...