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2720
bio website anglesmatter.wordpress.com
location Auckland, New Zealand
age 46
visits member for 3 years, 10 months
seen 14 hours ago

Doing conformal geometry


Jul
22
reviewed Approve suggested edit on What is remainder when $5^6 - 3^6$ is divided by $2^3$ (method)
Jul
21
answered The definition of scalar and vector concomitant of a metric
Jul
20
comment n-form density weight of the levi civita tensor
I don't have time to write an answer now, but you can find a fairly complete one in this note. This MO question has a nice answer too.
Jul
16
reviewed Reject suggested edit on Find a sequence
Jul
3
comment Compute the (surface) curvature
How do you see the plane $\sigma_{i j}$ as a submanifold here?
Jun
25
revised Question about a notation. Norm of the derivative of a function at a point
added 148 characters in body
Jun
25
revised Question about a notation. Norm of the derivative of a function at a point
edited body
Jun
25
answered Question about a notation. Norm of the derivative of a function at a point
Jun
24
answered Coincidence about nabla?
Jun
24
reviewed Reject suggested edit on Spivak's “Calculus in Manifolds” problems
Jun
24
reviewed Reject suggested edit on Finding some counterexamples
Jun
22
reviewed Approve suggested edit on Derivative of the characteristic function
Jun
22
reviewed Approve suggested edit on How does quater-imaginary (and other imaginary/complex bases) work?
Jun
22
reviewed Approve suggested edit on How to prove “a group $G$ of order $72$ can't be a simple group”?
Jun
22
revised Symmetry of Grassmanians
Created an easier-to-see pricture using SVG-EDIT to replace the screenshot
Jun
22
revised Curvature of a manifold
deleted 18 characters in body
Jun
22
answered Curvature of a manifold
Jun
21
reviewed Approve suggested edit on Find the expectation $E[X]$
Jun
21
reviewed Reject suggested edit on Show $ f(x,y)= 2x\sin(\frac{1}{\sqrt{x^2 + y^2}}) - x\cos(\frac{1}{\sqrt{x^2 + y^2}}) \sqrt{x^2+y^2}^{-1}$ not continuous at $(0,0)$
Jun
21
reviewed Reject suggested edit on Monotonic Union of Submodule