After trying several attempts to reattach the drooping bits with limited success I finally found a satisfactory repair.
With a sharp box cutter I cut the fabric around the room edges and where it tucked under the cabinets and closets.
I pulled down one half of the ceiling fabric to the center line of the room. I then used a large putty knife to scrape off any loose dried glue and vacuumed the area. It appeared that only a modest amount of adhesive had originally been used.
I sprayed both the ceiling and the fabric, but only out about two feet at a time from the center line. I used a fabric 3M adhesive. Starting at the center line and working outward a couple inches at a time, I used a small roller to press it into contact. Be sure to mask the walls and cabinets to prevent over spray. As long as one side of the fabric remains attached to the ceiling the fabric will remain in alignment.
After the fabric is adhered to the ceiling use the box cutter and a straight edge to trim against the walls and cabinets as the fabric will streach a small amount. Just repeat the procedure on the other side of the center line.