Covering space in B. O'Neill book, semi-riemannian geom.
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i'm reading the Appendix A in B. O'Neill's book semi-riemannian geometry and he says this.
I'm thinking on $textexp:mathbbRto S^1$ dose not provide an izo at the level of fundamental groups. What is wrong here?
algebraic-topology homotopy-theory geometric-topology
add a comment |Â
up vote
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i'm reading the Appendix A in B. O'Neill's book semi-riemannian geometry and he says this.
I'm thinking on $textexp:mathbbRto S^1$ dose not provide an izo at the level of fundamental groups. What is wrong here?
algebraic-topology homotopy-theory geometric-topology
one-to-one means injective not isomorphism
â Warlock of Firetop Mountain
Sep 10 at 21:01
oh, now make sens!
â Hurjui Ionut
Sep 10 at 21:26
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
i'm reading the Appendix A in B. O'Neill's book semi-riemannian geometry and he says this.
I'm thinking on $textexp:mathbbRto S^1$ dose not provide an izo at the level of fundamental groups. What is wrong here?
algebraic-topology homotopy-theory geometric-topology
i'm reading the Appendix A in B. O'Neill's book semi-riemannian geometry and he says this.
I'm thinking on $textexp:mathbbRto S^1$ dose not provide an izo at the level of fundamental groups. What is wrong here?
algebraic-topology homotopy-theory geometric-topology
algebraic-topology homotopy-theory geometric-topology
asked Sep 10 at 20:37
Hurjui Ionut
394111
394111
one-to-one means injective not isomorphism
â Warlock of Firetop Mountain
Sep 10 at 21:01
oh, now make sens!
â Hurjui Ionut
Sep 10 at 21:26
add a comment |Â
one-to-one means injective not isomorphism
â Warlock of Firetop Mountain
Sep 10 at 21:01
oh, now make sens!
â Hurjui Ionut
Sep 10 at 21:26
one-to-one means injective not isomorphism
â Warlock of Firetop Mountain
Sep 10 at 21:01
one-to-one means injective not isomorphism
â Warlock of Firetop Mountain
Sep 10 at 21:01
oh, now make sens!
â Hurjui Ionut
Sep 10 at 21:26
oh, now make sens!
â Hurjui Ionut
Sep 10 at 21:26
add a comment |Â
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one-to-one means injective not isomorphism
â Warlock of Firetop Mountain
Sep 10 at 21:01
oh, now make sens!
â Hurjui Ionut
Sep 10 at 21:26