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Ooker
  • Member for 9 years, 8 months
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6 votes
0 answers
729 views

Roadmap to understand the link between spherical harmonics and Riemann sphere?

4 votes
1 answer
367 views

What is the significance of differential operators over other operators in group theory?

4 votes
1 answer
155 views

What does $S^1$ do in many branches of math?

3 votes
2 answers
113 views

Let group $G$ acts on set $M$. Why are there always $\# G_m$ elements in $G$ map $m$ into any $n$ in the orbit $G\cdot m$?

3 votes
1 answer
446 views

Are linear operator just projections in projective geometry?

3 votes
3 answers
496 views

What is the relation between $\varepsilon$-$\delta$ and $dy$-$dx$ notations?

3 votes
1 answer
346 views

What is the difference between chirality and chiral symmetry?

2 votes
1 answer
564 views

Is there a thing so-called integral over the projective line of $\mathbb R$?

1 vote
0 answers
52 views

Why can an arbitrary operator be linearized with a suitable basis?

1 vote
1 answer
175 views

Why is the matrix realization constructed from basis "looks backwards"?

1 vote
0 answers
179 views

Is there any book about topic modelling in machine learning for math student?

0 votes
1 answer
27 views

What function graphs a decreasing positive line asymptoting the horizontal line and not too steep at the start?

0 votes
1 answer
123 views

What projective groups whose characters form the basis of their corresponding $L^2$ space?

0 votes
2 answers
38 views

What is the possibility of getting a head or tail if the observer lies 1% of time?

0 votes
2 answers
70 views

What does "judicious extrapolation" mean?

0 votes
0 answers
167 views

How is orthonormal basis $\{e^{2πikt}\}_{k=-\infty}^\infty$ with index going to $-\infty$ constructed in $L^2(\Bbb S^1)$?

0 votes
1 answer
67 views

What are these characters notates for homogeneous coordinates?

0 votes
1 answer
110 views

Where is the number 130 archers per meter in attempt 2, in the "Sparta" article in the "What If?" book?

0 votes
0 answers
67 views

Why is this plotted summation of two sine functions not eveloped?

0 votes
0 answers
748 views

Is there any difference between a Riemann sphere and a normal stereographic projection of a complex plane?

0 votes
2 answers
324 views

If $\Bbb C^\infty$ is the only infinite-dimensional Hilbert space, why do other space names need to be used?

-1 votes
1 answer
151 views

Can a "product" of two multipliers equal a multiplicative identity?

-1 votes
3 answers
354 views

How to calculate 3x7 by using logarithm?