Prove Homeomorphism of {A in GL(n;R) | det(A)>0 & det(A)<0}

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SUMMARY

The discussion focuses on proving that the set {A in GL(n;R) | det(A)>0} is homeomorphic to the set {A in GL(n;R) | det(A)<0}. Participants emphasize the importance of understanding the topology of GL(n;R) and the properties of the determinant function. An explicit homeomorphism between these two sets is sought, with the suggestion that the proof should not be overly complex. The conversation highlights the necessity of grasping the underlying topological properties to facilitate this proof.

PREREQUISITES
  • Understanding of homeomorphism in topology
  • Familiarity with the general linear group GL(n;R)
  • Knowledge of determinant properties and their implications
  • Basic concepts of topology and continuous functions
NEXT STEPS
  • Research explicit homeomorphisms in topology
  • Study the properties of determinants in linear algebra
  • Explore the topology of GL(n;R) in detail
  • Investigate examples of homeomorphic sets in mathematical literature
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Mathematicians, particularly those specializing in topology and linear algebra, as well as students seeking to understand the relationship between determinant properties and topological structures in the general linear group.

rifat
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Could anyone help me to prove the following question:
"How can we show that the set {A in GL(n;R) | det(A)>0} is homeomorphic to the set {A in GL(n;R) | det(A)<0}?"
 
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Have you tried to write down a homeomorphism?
 
Thanks for reply. Yah I mean Homeomorphism. Actually I would ike to know how can we show that the set {A in GL(n;R) | det(A)>0} is homeomorphic to the set {A in GL(n;R) | det(A)<0}. I didnt understand how can we explain the properties of Homeomorphism function here. Could you please tell me a little detail. Thanks again.
 
I meant, have you tried to give an explicit homeomorphism between those two sets? It shouldn't be too hard.
 
Rifat ,I hope this is not too obvious of a comment:
Think of the topology you are using in GL(n;R) , the properties of det (A),and it
should become clearer.
 

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