513.001 Molecular and Solid State Physics

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Central equations

Write the central equations in matrix form for a 2-dimensional square lattice.

1d: http://lamp.tu-graz.ac.at/~hadley/ss1/lectures09/dec9/slide2.html

3d: http://lamp.tu-graz.ac.at/~hadley/ss1/lectures09/dec9/slide7.html