## This page contains an experimental version of a program that computes the
*collapsed hat Grid homology of links * in lens spaces with integer coefficients
(when the grid number $n$ is < 5).

### A sample session should start automatically; you can then input the parameters (grid number and the two positive
coprime integers determining the lens space) and press the "Update" button.

Note that it might take a long time if you choose knots with big parameters (*i.e.* $n >3$).
You can find here the instructions for this program.

If something does not work, or if you have any comment please let me know at *celoria mail.dm.unipi.it*

### I just realized that the decategorifications have the wrong sign! going to fix it ASAP.

### Added links! And shortly it should work for $S^3$ too.