Last Updated：2026/01/01
Sentence
Quizzes for review
By way of an example, we consider in detail the complex projective line C ℙ¹. […] Thus via the function w_0 the complex projective line C ℙ¹ becomes identified with the extended complex plane
(i.e. the ordinary complex plane with an additional point at infinity
).
2..2.1 Theorem The complex projective line C ℙ¹ is diffeomorphic to the 2-dimensional sphere S².
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
