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seen May 8 '13 at 18:23

Jul
2
awarded  Curious
Jun
24
awarded  Popular Question
May
19
awarded  Popular Question
Apr
29
awarded  Organizer
Apr
29
revised Finding an angle of a triangle in the upper half plane model given three points
Added "conplex analyis" tag
Apr
29
suggested suggested edit on Finding an angle of a triangle in the upper half plane model given three points
Apr
22
asked How to prove that there is a unique geodisic segment that is pependicular to two other geodesics?
Apr
22
accepted Finding a hyperbolic isometry that fixes the point $x = 2$ and $x = 17$
Apr
21
comment Finding a hyperbolic isometry that fixes the point $x = 2$ and $x = 17$
Awesome I appreciate all your help. I have another question on a related note and didn't want to open another topic since it is so related. If I had a parabolic isometry that fixes $x = 17$, I assume the first step would be same $f(z) = z$ and $ a + d = 2$? But since the equation has two roots, but I have only one fixed points, how should I proceed in that case ?
Apr
21
comment Finding a hyperbolic isometry that fixes the point $x = 2$ and $x = 17$
Checking for hyperbolic isometry, isn't that just checking $a+d > 2$ and $ad-bc \ne 0$, or is there something more involved than that ?
Apr
21
comment Finding a hyperbolic isometry that fixes the point $x = 2$ and $x = 17$
So when you say to check whether the resulting function $f$ does what it is supposed to do, does that mean put the values of a,b,c,d in the original equation and make sure that they equal to 2 or 17 ?
Apr
21
comment Finding a hyperbolic isometry that fixes the point $x = 2$ and $x = 17$
I'm trying to understand the process so please bear with me. At first I see that you set f(z) = z. I'm not sure why, could you please explain this? In the end, to get the answer should I just choose any a, b, c, d values that satisfy all those equations ?
Apr
21
revised Finding a hyperbolic isometry that fixes the point $x = 2$ and $x = 17$
added 1 characters in body
Apr
21
asked Finding a hyperbolic isometry that fixes the point $x = 2$ and $x = 17$
Apr
21
comment Calculating hyperbolic distance between two points
@J.M. - I don't have the tab open anymore, but it was in one of the links I found through googling
Apr
21
asked Calculating hyperbolic distance between two points
Apr
20
comment Find an orientation preserving isometry $f (z) = \frac{az+b}{cz+d}$ such that $f (i) = 17 + 3i$
Thank you! I'd like to read more about polynomials over z preserving orientation and holomorphic functions because I don't understand those yet. Any specific sources you suggest ?
Apr
20
awarded  Yearling
Apr
20
revised Find an orientation preserving isometry $f (z) = \frac{az+b}{cz+d}$ such that $f (i) = 17 + 3i$
edited body
Apr
20
asked Find an orientation preserving isometry $f (z) = \frac{az+b}{cz+d}$ such that $f (i) = 17 + 3i$