ESTIMATES ON THE FINITE ELEMENT APPROXIMATIONS OF A QUADRATIC FUNCTIONAL

This paper gives some estimates of a quadratic functional related with Rie- mann Hypothesis.

HUA CLASS ON REAL LINE AND TRICOMI PROBLEM

In this note, we study the Hua weak function class H on the real line. And then point out its connection with Tricomi ploblem of equation.

Preface

This special issue of Acta Mathematica Scientia is dedicated to Tai-Ping Liu on the occasion of his 70th birthday. In the very active and far-reaching field of hyperbolic conservation laws, balance laws, and kinetic equations, it is impossible not to come across the name of Tai-Ping Liu. Certainly, it is not needed to invoke evaluations of experts to realize the impor- tance of the contributions that Tai-Ping Liu has made in the field of partial differential equations.