103 citations
2 papers
q-fin.GN2010★ 103 cited
Topology of the correlation networks among major currencies using hierarchical structure methods
Mustafa Keskin, Bayram Deviren, Yusuf Kocakaplan
We studied the topology of correlation networks among 34 major currencies using the concept of a minimal spanning tree and hierarchical tree for the full years of 2007-2008 when ma…
math.DG2010★ 2 cited
Helicoidal surfaces in Minkowski space with constant mean curvature and constant Gauss curvature
Rafael López, Esma Demir
In this work we find all helicoidal surfaces in Minkowski space with constant mean curvature whose generating curve is a the graph of a polynomial or a Lorentzian circle. In the fi…