We consider piecewise H¹ functions and vector fields associated with a class of meshes generated by independent refinements and show that they can be effectively analyzed in terms of the number of ...

Dorte Kronborg, Peter Aaby, Piecewise Comparison of Survival Functions in Stratified Proportional Hazards Models, Biometrics, Vol. 46, No. 2 (Jun., 1990), pp. 375-380 ...