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Questions
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Is every smooth affine curve isomorphic to a smooth affine plane curve?

may 4 10 at 16:45 Maharana 901●6●12

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Is it true that, as Z-modules, the polynomial ring and the power series ring over integers are dual to each other?

jan 8 10 at 22:03 Hailong Dao 15.4k●29●69

 
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Does a regular neighborhood always exist for a properly embedded surface in a 3-manifold?

dec 30 09 at 22:07 Sam Nead 5,302●12●26

 
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Can you explain a step in a proof about 2-sided surfaces in 3-manifolds?

dec 24 09 at 19:52 Dmitri 16.6k●1●36●77