Spectral synthesis for systems of differential operators with constant coefficients

Abstract

Bit data was recorded on a LiTaO 3 single-crystal medium using a data storage system which was based on scanning nonlinear dielectric microscopy, and bit error rate was evaluated. The recording medium with a highly homogeneous thickness of 119 nm was prepared employing both polarization controlled wet etching and dry etching techniques. A 256 Â 256 data bit array was recorded at an areal density of 258 Gbit/inch 2 . The bit error rate was determined to be 1:2 Â 10 À3 by visual inspection. An automated analysis method was subsequently discussed in detail.

Symmetric representations of holomorphic functions

“…Note that the concept of symmetric representation of an analytic function plays a key role in some questions of complex analysis. For example it is used in spectral synthesis (see [3][4][5][6]).…”