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H-H
  • Member for 6 years, 10 months
  • Last seen more than 1 year ago
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accepted
Extension of outer unit normal vector to interior
accepted
Injectivity of homomorphism between homology groups of manifold and its boundary
revised
Extension of outer unit normal vector to interior
added 233 characters in body
revised
Extension of outer unit normal vector to interior
I make the question more clearly.
comment
Extension of outer unit normal vector to interior
@PiotrHajlasz, Thanks, I will think about it more.
asked
Extension of outer unit normal vector to interior
revised
Extension Sobolev functions across of lower dimensional subset
added 147 characters in body
awarded
 Yearling
asked
Extension Sobolev functions across of lower dimensional subset
comment
Lefschetz duality for non-compact relative manifolds
@Mingcong Zeng, Why is $X-A$ homotopic to $M=X-N(A)$ ? I am sure that $A$ is homotopic to $N(A)$, is it true for the complement?
comment
When is a Homology Class Represented by a Submanifold?
@Paul: Do you know any book that contains these theorems, thanks.
comment
When is a Homology Class Represented by a Submanifold?
@ Andy Putman: Do you know any book that contains these theorems. I can't read French. Thanks!
comment
Injectivity of homomorphism between homology groups of manifold and its boundary
@NajibIdrissi, thanks for answering, what do you mean by "sufficiently far away", I think now matter where $y$ is, $\{y\}\times S^1$ is homologous to $\{x\}\times S^1$, thus is trivial in the new boundary.
asked
Injectivity of homomorphism between homology groups of manifold and its boundary
awarded
 Disciplined
awarded
 Editor
awarded
 Scholar
accepted
The developing map of conformally flat manifold
awarded
 Student
asked
The developing map of conformally flat manifold
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