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Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

The International Mathematical Olympiad (IMO) is a prestigious competition featuring talented high school students from around the world, in which competitors solve complicated mathematical problems.

Experiments on HEK cells stably expressing the P2X 2 receptor gave results similar to those obtained with transient expressers. The proportion of cells stably expressing P2X 2 that showed increased ...

Differential manifolds provide higher dimensional generalizations of surfaces. They appear in a very natural manner in many areas of mathematics and physics. On a differential manifold or more ...

This title is part of a longer publication history. The full run of this journal will be searched. TITLE HISTORY A title history is the publication history of a journal and includes a listing of the ...