%0 Journal Article
%T Union curves in W2 relative to a congruence and union curvature of a curve in W2
%A N. Kofoglu
%J International Mathematical Forum
%D 2013
%I 
%X In this paper, firstly we obtained differential equation of the union curves in $W_2$. Then, we showed that obtained equation is equivalent to apair of differential equations of the second order. We denoted it by $(eta_1,eta_2)$ and we named $eta_1$ and $eta_2$ as the components of the union curvature vector field.We defined union curves in $W_2$ relative a congruence by means of the union curvature vector field. Finally, we expressed union curvature of a curve in $W_2$ in terms of the components of the union curvature vector field.
%K Weyl space
%K union curvature vector field
%K union curve
%U http://www.m-hikari.com/imf/imf-2013/9-12-2013/kofogluIMF9-12-2013.pdf