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Apr
16
comment Riemann surface with punctures corresponds to a hyperbolic surface with cusps
Which paper is it?
Apr
1
reviewed Leave Open Inverse of $7$ in $Z_{23}$
Apr
1
reviewed Leave Open Are there enough knots to cover $\mathbb{R}^3$?
Apr
1
reviewed Leave Open How to compute this limit with different operations of $x$?
Apr
1
reviewed Close If $\lim (S_n)=s$, does it follow that $\lim (S_{n+1}) = \lim (S_{n+2}) = s$?
Apr
1
asked Why is $0$ the $0^\text{th}$ prime?
Apr
1
reviewed Leave Open Convergence of infinite product of prime reciprocals?
Apr
1
reviewed Leave Open Integral solutions of $x^5-27y^3=2x$
Mar
30
reviewed Leave Open Need help with linear transformations (with projection and reflection)?
Mar
30
reviewed Close 5-4 Give an example of two sigma-algebra in a set X whose union is not an algebra
Mar
30
reviewed No Action Needed What is the answer to this P&C problem.
Mar
30
reviewed No Action Needed prove that the quotient ring S3/T3 is isomorphic to D3
Mar
30
revised possible polyhedra from euler's formula
edited tags
Mar
29
reviewed Leave Open Optimal stopping strategy
Mar
29
reviewed Approve Find Line integral of $e^{-z} /{z-\pi/2}$ on a region $\gamma$
Mar
28
reviewed Leave Open Linear combination of Chi-squared distrubuted variables with ascending degrees of freedom
Mar
25
reviewed Close Prove that a group of order 150 is not simple.
Mar
25
reviewed Leave Open mod operation proof
Mar
25
comment Prove that every maximal planar graph of order 4 or more is 3-connected
What is "maximal planar"?
Mar
25
comment Find the limit of this expression
Substitute $y=x+1$ and make a series expansion at $y=0$...