1) Riemann surfaces and their topological classification.
2) Conformal structures, the theorem on uniformisation, description
set of conformal structures on a Riemann surface of genus g.
3) The definition of Laplas-Beltrami operator on Riemann surfaces and
4) Harmonic functions on a Riemann surface:
a) theorems of existence
b) local in the neighborhood of critical isolated point
c) Morse inequalities for critical points
5) Construction of level set of harmonic function
6) Problems of existence of harmonic functions with predefined properties
7) Open questions and conjectures