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Renato Moreira's user avatar
Renato Moreira's user avatar
Renato Moreira's user avatar
Renato Moreira
  • Member for 10 years, 9 months
  • Last seen more than 3 years ago
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Undergraduate Student in Math at State University of Campinas, Brazil.

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3-sphere bundles over 4-sphere bound smooth disc bundles
Dec 3, 2015
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Spectrum of a $1$-parameter family of symmetric linear operators
Jul 30, 2019
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10
There is no immersion of the Möbius band in the plane.
7
Euler characteristic of an $n$-sphere is $1 + (-1)^n$.