Preface

An initial and boundary value problem for nonlinear composite type systems of three equations
H.	Begehr, G. G. Wen ~ Z. Zhao

Existence of the solution for a nonlinear Keldys-
Fichera boundary value problem	4
Z.	G. Chen

Boundary value problems for complex overdetermined partial differential equations of second order
J.	Cheng ~ M. Z. Li

Function theoretic methods for semilinear pseudo-parabolic
equations in two space dimensions	18
D.	Q. Dai

On the trigonometric polynomials interpolating approximate
solutions of singular integral equations with Hilbert kernel	26
J.Y.Du

Normal structures on manifolds, and the system of
partial differential equations of Geodesics
E.	Esrafilian

Approximate solutions for some free boundary value
problems occurring in planar fluid dynamics	40
R.	P. Gilbert ~ G. G. Wen

The boundary value problems and initial-boundary value problems
for systems of second order partial differential equations	49
Y.	Z. Guo ~ F. Qiu
Vector-valued boundary value problems of a class	57
C.G.Hu
The stability of solutions for elliptic systems of several
complex equations of first order	65
M.	D. Hu

The efficiency of the integral equation methods in
mathematical problems for nonlinear phenomena	71
L.	D. Huang

On oblique derivative problem for generalized regular
functions with values in a real Clifford algebra	80
S.	Huang ~ S. X. Li

The mixed method of complex variable boundary element with finite element for Riemann boundary value problem
P.	Q. Li

The approximate solutions and the error estimates for generalized
BBM equations and KdV-B equations	96
Z.	S. Li

The method of approximate solution of mixed boundary value
problem for nonlinear elliptic equations of second order	102
Z.	Z. Li ~ H. Z. Li

A mixed-contact boundary value problem for the orthotropic
elasticity	110
W.	Lin ~ H. Begehr

The Riemann boundary value problem of exceptional type with
discontinuity coefficient in infinite interval	117
Y.	B. Lin

Some problems of qualitative researches on ultra-hyperbolic
equations	125
  L. Ling ~ H. Chen

Saint-Venant torsion problem for a circular cylinder
composed of compound materials with curved cracks	133
S.	Q. Liu ~ L. H. Hao
A numerical solution of the free boundary problem and its application 141 Y Q. Luo, Y. Hu ~ Z. H. Xu
T-operator in	and its applications	147
X.	W. Meng

A class of singularly perturbed nonlinear reaction
diffusion integral-differential equation	153
J.	Q. Mo
Function-theoretic process of hyperbolic equations	161
D.	Q. Pu
Linear hyperbolic equations with two super singular lines	170
N.	Baja bov

The resolution and Noether properties of hypersingular
integral operators		176
E.	Q. Bong

On anologies of the Riemann boundary value problem for
a class of hyperholomorphic functions	184
M.	V. Shapiro

The singular integral equations containing both Cauchy
and convolution kernel in {a,	class	189
Y X. Shen ~ J. K. Lu

The general boundary value problem for nonlinear degenerate
elliptic equation of second order in the plane	197
M.	Y. Tian

Optimal bounds for the derivative with respect to a parameter
and an application to partial complex differential equations 204 W. Tutschke

Non-classical singular integral operators and
algebras generated by them		210
N.	L. Vasilevski
The algebra of singular integral operator with
doubly periodic kernel		2
C.	R. Wang

Block-centered finite difference methods for quasilinear
hyperbolic partial integro-differential equations	2
S.	L. Wang

Clifford analysis and elliptic systems, hyperbolic
systems of first order equations	2
G.	C. Wen

The BEM to the stationary Stokes problem in B3	2
X.	J. Xiong ~ Z. L. Zhang
The dual of	Cm)	2
Z.	Y Xu

A free boundary problem in axisymmetry nonstationary filtration	2 Z. L. Xu

Mathematical theory and error estimates of boundary integral
equation method for linear parabolic equations	2
D.	P. Yang

Riemann-Hilbert boundary value problems with weaker
coefficients in the boundary condition	2
G.	W. Yang ~ K. M. Xu

BEM for singular perturbation problems and uniform estimates
of their convergence rates	2
H.	T. Yang ~ R. H. Li

Boundary value problems for complex elliptic equations
on the plane and singular integral equation of composite type	2 Z. Zhao

On the mixed problem in an infinite elastic plane with crack 2 K. Zheng