Conversation so far:
what is the name of the antarctic sea
The Southern Ocean, also known as the Antarctic Ocean or the Austral Ocean, comprises the southernmost waters of the World Ocean.
what are the boundaries of the southern ocean
The Southern Ocean is generally taken to be south of 60 degrees south latitude and encircling Antarctica.
is antarctica claimed by any countries
There are seven sovereign states who have territorial claims in Antarctica: Argentina, Australia, Chile, France, New Zealand, Norway, and the United Kingdom.

Question: are the claims recognized
Self-contained rewrite: are territorial claims to antarctica recognized