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SummaryIntegral operators are nonlocal operators. The operators defined in boundary integral equations to elliptic boundary value problems, however, are pseudo-differential operators on the boundary… (More)

- De-hao Yu
- 2002

Preface. I. General Principle of the Natural Boundary Integral Method. II. Boundary Value Problem for the Harmonic Equation. III. Boundary Value Problem of the Biharmonic Equation. IV. Plane… (More)

- Jin Li, Ji-ming Wu, De-hao Yu
- 2009

Novel carboxymethyl-etherified starch derivatives and methods for manufacturing the same, and more particularly, to the novel carboxymethyl-etherified starch derivatives having a viscosity in 5%… (More)

The composite rectangle (midpoint) rule for the computation of multidimensional singular integrals is discussed and the superconvergence results is obtained. When the local coordinate is coincided… (More)

- De-hao Yu
- 1993

The boundary element methods sometimes lead to hypersingular integral equations. In this paper some numerical methods for computing hypersingular integrals, such as the method using series expansion… (More)

- Zheng-peng Wu, Tong Kang, De-hao Yu
- 2004

In this paper, based on the natural boundary reduction advanced by Feng and Yu, we couple the finite element approach with the natural boundary element method to study the weak solvability and… (More)

The composite classical trapezoidal rule for the computation of Cauchy principal value integral with the singular kernel 1/(x−s) is discussed. Based on the investigation of the superconvergence… (More)

Some new domain decomposition methods based on natural boundary reduction are suggested for overlapping and non-overlapping domains. A two-dimensional scalar wave equation is taken as a model to… (More)

In thispaper, we apply the artificial boundary method to solvea three- dimensional nonlinear interface problem on an unbounded domain. A spherical or ellipsoidal surface as the artificial boundary is… (More)

- Z. Dong, Shun-cai Li, De-hao Yu
- 2006

After the stress function and the normal derivative on the boundary for the plane problem of exterior circular domain are expanded into Laurent series, comparing them with the Laurent series of the… (More)