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0
votes
1answer
110 views
Drawing 3d projection of complex surface
I have a complex surface (real dimension 2) in $\mathbb{C}^2$ with coordinates $(z,w)$ given explicitely: for any $\xi \in \mathbb{C}$ I know points $w(\xi)$ of intersection of surface with complex ...
11
votes
1answer
197 views
How to numerically calculate residues?
I need to calculate the following integral:
$$
{1\over 2\pi i} \int_C f(E) \, d E
$$
$$
f(E) = {\rm Tr}\,\left(({\bf h} + E)\,{\bf G}(E) \right)
$$
Where $\bf h$ is a matrix (one particle kinetic and ...
