I am working on some boundary integral equation formulation and I am currently stuck with some mathematics. I wish anyone can help me out with this. 

I have an anisotropic (sometimes called generalized) biharmonic differential operator which  takes the form

L = k11 D1^4 +  k12 D1^2 D2^2 + k22 D2^4 

where D1 = d/dx, D2 = d/dy, my problem is two dimensional.

I need to find a fundamental solution (Green's function) for this operator, that is 

L(u) = -delta

where delta is Dirac delta function.

what are the books/papers that give the basic idea about dislocation-crystal plasticity theory?

Dear Colleagues：

I am very happy to let you know that our innovation of material like snail shell has been selected to be presented at EXPO 2010 in Shanghai at Youth Innovation Center (中国2010年上海世博会全球青年创新之旅).

I am working on an analytical solution for a  crack propagation  problem in a porous media using complex variable methods. Does anybody know some good references?

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Professor Wolfgang Knauss, of the California Institute of Technology, is selected to receive the 2010 Timoshenko Medal.

The Micromechanics of Interfaces

A Symposium in Honor of Professor Leon Keer

Symi, Greece

July 18-23, 2010

Chair:

Xanthippi Markenscoff

University of California

San Diego