1,102 reputation
627
bio website math.stackexchange.com/users/…
location Antarctica
age 79
visits member for 1 year, 11 months
seen Sep 17 at 4:23

Self-learning mathematics. Many thanks to those who make time to help others on the site.


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awarded  Popular Question
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Jun
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accepted Showing path connected matrices of a group $G$ is a normal subgroup
Jun
26
comment Showing path connected matrices of a group $G$ is a normal subgroup
In the first part, to allow for the inverse of $B$, do I need $\tau^{-1}$ to be continuous too or is it enough to say $\tau$ is continuous? Is this equivalent to saying if $B\in H$, we want to show $B^{-1}$ is in $H$? And you don't need to edit the post just to fix $I$, it's clear now.
Jun
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asked Showing path connected matrices of a group $G$ is a normal subgroup
Jun
21
revised Showing the topologists sine curve is connected (slight variation)
added 70 characters in body
Jun
21
asked Showing the topologists sine curve is connected (slight variation)
Jun
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accepted Understanding equivalent definitions of left cosets
Jun
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revised Understanding equivalent definitions of left cosets
deleted 1 characters in body
Jun
19
asked Understanding equivalent definitions of left cosets