Question: volume 2 contains bott's papers on differential operators.
Answer: --> Volume 2 contains Bott's papers on differential operators.

Question: the "hotel alexandra copenhagen" - is our free app with offline map and city guide.
Answer: --> The "Hotel Alexandra Copenhagen" - is our free app with offline map and city guide.

Question: for emails (in the form of "mailto:" links), the user can be notified directly via email without any extra code needed on your part.
Answer:
--> For emails (in the form of "mailto:" links), the user can be notified directly via email without any extra code needed on your part.