Mathematics
Sam Freedman's user avatar
Sam Freedman's user avatar
Sam Freedman's user avatar
Sam Freedman
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I am a graduate student at Brown University interested in flat surfaces and Sagemath programming.

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All Questions Answers
Score Newest
question
8
Is there a connection between the Whitney embedding theorem and Cayley's theorem?
Feb 1, 2021
answer
8
does the linear isomorphism between the tangent space at a point and $ \mathbb{R}^n $ depend on charts?
Dec 24, 2019
answer
8
Jacobian of an orthogonal transformation
Jan 19, 2020
answer
6
The Lefschetz Number: A Geometrical Interpretation
Feb 20, 2021
answer
6
Show that $\sum_{k=0}^{n} {n \choose k}2^k=3^n$ using mathematical induction.
Jan 28, 2021
answer
6
Injective homomorphism between two finite groups with the same order
Jan 16, 2020
answer
5
What do we actually rotate with rotational matrices
Feb 19, 2021
question
5
If a subgroup of a surface group surjects onto first homology, does it generate the surface group?
Jun 20
answer
5
Proving $\sum_{k=0}^\ell \binom{n}{k}\binom{m}{\ell-k}=\binom{n+m}{\ell}$
Feb 1, 2021
answer
5
Showing that the Klein-four group is associative without checking 64 options
Jan 11, 2021

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