document.write("« Geometric and analytic problems of the theory of ramified coverings of the sphere. (arXiv:1712.04643v1 [math.CV])");document.write(" | ");document.write("Geometric integrator for Langevin systems with quaternion-based rotational degrees of freedom and hydrodynamic interactions. (arXiv:1708.03357v2 [physics.comp-ph] UPDATED) »");