[Clp] Any reference for the presolve class twoxtwo_action ?

[Mengchang WANG]

Dear CLP community,

I am trying to understand the 2x2 presolve action (class twoxtwo_action, in
CoinPresolveDupcol.hpp ), but I couldn't find any documentary about the
approach.

Could anyone kindly suggest any reference on it?

Thanks.

Mengchang
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/clp/attachments/20191120/c73e20e2/attachment.html>