We have read some papers of stroh formalism and the textbook of Tom Ting, and found that the stroh formalism and the hamilton system proposed by prof.zhong wanxie had some relation. We want to know whether the stroh formalism is enough for the analysis of the anisotropic elastic? Thus's to say, for some problems could not  give the satisfied answer which we may try the hamilton framework. I briefly compare the two methods as follows:

This paper aims to illustrate how anisotropic elastic properties of the crystal substrate affect epitaxial surface evolution and pattern formation. Specifically, for Ge and SiGe films on silicon substrates of various surface orietations, it is shown that the elastic anisotropy plays an important role. However, it must be pointed out that the evolution dynamics of epitaxial surfaces can be much more complicated, due to the combination/competition of various anisotropic properties (e.g., surface energy, surface diffusivity, etc.). Furthermore, for some surface orietations. e.g., Si(111) and Si(113), discrete surface steps play critical roles in the nucleation and growth of epitaxial islands and other surface structures.

Hi everyone,

I started last year my PhD in mechanical engineering in the University of Seville (Spain). After attending a lecture on Stroh and Lekhnitskii formalism I wanted to know more about this two mechanicians. It was easy to find a brief Stroh's biography in Ting's Anisotropic Elasticity, but I was unable to find anything about Lekhnitskii. My lecturer had also tried to find out something about him, asking even to russian engineers in international conferences, but not even his fellow  countrymen knew anything.  This lack of records increase even more my curiosity.

Would anyone have any information on Lekhnitskii's life?

Thank you very much in advance.

Tom Ting and I have recently developed a method of extending Stroh's anisotropic formalism to problems in three dimensions. The unproofed paper can be accessed at http://www-personal.umich.edu/~jbarber/Stroh.pdf .