Exhibit 4 ========= Date: Sun, 2 Dec 2012 23:39:03 -0500 (EST) From: Jacob Kogan To: jburgee@umbc.edu Cc: Jacob Kogan Subject: PTR material Parts/Attachments: 1 Shown 13 lines Text 2 OK 42 KB Application 3 OK 99 KB Application ---------------------------------------- Dear Janet, 1. attached please find two files Kogan_CV.pdf and Kogan_PS.pdf i am submitting for PTR. 2. I would like to inspect the file before the Committee considers it. Best, Jacob Jacob Kogan Math and Stat, UMBC http://www.math.umbc.edu/~kogan 410-455-3297, -1066 fax [ Part 2, "" Application/PDF (Name: "Kogan_PS.pdf") 42 KB. ] [ Not Shown. Use the "V" command to view or save this part. ] [ Part 3, "" Application/PDF (Name: "Kogan_CV.pdf") 99 KB. ] [ Not Shown. Use the "V" command to view or save this part. ]