鹅肉干

贵州省遵义市余庆县城东有个卤鸭家族．祖孙三代都有一手好手艺——卤鸭。一家人开了3个卤鸭摊儿。家中年纪最小的张小波今年23岁，张小波告诉记者，他高中毕业后跟着家人一起摆小摊，直到去年8月份，开始转行加工鹅肉。不到半年，他不仅把自制的鹅肉干铺在了自家的三个小摊上，还在外发展了三家卤肉经营户和一家牛肉干经销户作为客户。

A Property of MRA of Multiplicity r with an Arbitrary Dilation Matrix

In this paper, we give a property for multivariate multiresolution analysis of multiplicity r with an arbitrary dilatiion matrix.

Construction of A Kind of Wavelets

A method to construct wavelets on invariant sets is given, which can he used to construct nontensor-type multiwavelets，

Convergence and error estimate of cascade algorithms with infinitely supported masks in L_p(R^s)

The cascade algorithm plays an important role in computer graphics and wavelet analysis.In this paper,we first investigate the convergence of cascade algorithms associated with a polynomially decaying mask and a general dilation matrix in L p (R s) (1 p ∞) spaces,and then we give an error estimate of the cascade algorithms associated with truncated masks.It is proved that under some appropriate conditions if the cascade algorithm associated with a polynomially decaying mask converges in the L p-norm,then the cascade algorithms associated with the truncated masks also converge in the L p-norm.Moreover,the error between the two resulting limit functions is estimated in terms of the masks.