Managing the development of a digital platform for Dutch healthcare companies

Platforms - defined as businesses with network effects, thereby becoming more valuable the more users they acquire - have become economically important in our current economies. They are ubiquitously present in our daily lives and drive an increasingly share of our economies. However, most platforms cease to exists within the first five years....

Classification of minimal mass blow-up solutions for an L2 critical inhomogeneous NLS

We establish the classification of minimal mass blow-up solutions of the L2 critical inhomogeneous nonlinear Schrödinger equation i?tu+?u+|x|?b|u|4?2bNu=0, thereby extending the celebrated result of Merle (Duke Math J 69(2):427–454, 1993) from the classic case b=0 to the case 0<b<min{2,N}, in any dimension N?1.

Critical mass for the development of a new container port in Vlissingen

The economic importance of accommodating container transport and the increasing demand for container-handling capacity are major triggers for conventional ports to develop container terminals. The port of Vlissingen, located between Rotterdam and Antwerp, is aspiring to gain a position in deep-sea container handling. A relevant factor that...

Synergy in polycentric urban regions: Complementarity, organising capacity and critical mass

This thesis focuses on relationships between cities in Polycentric Urban Regions (PURs), which are regions containing proximate but distinct cities that are rather similar in size. A classic example is the Randstad. The extent to which there are synergies between cities in PURs is explored. The author develops theories on synergy in PURs and...