 | This article has not yet been rated on Wikipedia's content assessment scale. |
... What is up with this page? Especially since there is already a wikipedia article on this at Hopf's maximum principle. Maybe the could be joined?
| This article has not yet been rated on Wikipedia's content assessment scale. |
... What is up with this page? Especially since there is already a wikipedia article on this at Hopf's maximum principle. Maybe the could be joined?