# A lower limit on the cosmological constant

This is a lensing statistics analysis of optical surveys from the literature, concentrating on using $\lambda_{0}$ and $\Omega_{0}$ as free parameters with a lens model with a core radius. It also is the first in a series of papers, so it sets the stage for those as well. You can get the data used to make the figures and input data for the calculations from here. With time, I hope to make all data from my papers available which are necessary to reproduce the results.

The links below point to one file containing the complete text, all figures and tables etc.

As are most of my publications this is available in more than one form:

directory of individual short descriptions of papers
Phillip Helbig's publications
Phillip Helbig's research