Exhibit 6
=========

Date: Wed, 22 May 2013 13:09:48 -0400 (EDT)
From: Jacob Kogan <kogan@umbc.edu>
To: nagaraj@umbc.edu
Cc: Jacob Kogan <kogan@math.umbc.edu>
Subject: PTR file

Dear Nagaraj,

Yesterday I inspected my PTR file. As per your request to submit the dossier
by December 3, 2012 I submitted all requested documents on December 2, 2012.
As a result the cv contained in the file is dated November 28, 2012.

As you can see from the sabbatical request submitted to you yesterday, May
21, 2013 there are additional research activities I participated in over the
last six months. Those are not reported on the November 28, 2012 vita.
Please let me know whether the current vita is needed.

Best,

Jacob

Jacob Kogan                       Math and Stat, UMBC
http://www.math.umbc.edu/~kogan   410-455-3297, -1066 fax