Hi Mark,
So, I retried as per your suggestion, and I'm still seeing my problem. Maybe it's works differently with ASE 15.7 SP132. Attached is a log named beforeindex.txt. In this log, I have created the audit_event partition/table and performed a sp_help audit_event. You can see the partitions are in the various segments. Attached is a log named afterindex.sql. This is what I see after I run the modified index DDL that reflects similar to how you created your indexes. I now see the partitions for the audit_event table belong to the index_infraseg segment, and no longer belong to the segments that are specified in the create table DDL. Sigh.....
Maybe I'll try just running your scripts. Since I have been looking at this for so long, I may be overlooking something trivial. But I am content to have the index partitions along with the table partitions in a specified segment. I may just dump my original design, and go with that.
thanks again for all your help.