Chris
  • Member for 4 years, 10 months
  • Last seen more than a month ago
  • London, UK
1 answers
14 votes
357 views
5 bookmarks
Closest cyclotomic integer to a cyclotomic number?
1 answers
4 votes
81 views
Linear combination of two vectors in complex space
1 answers
4 votes
56 views
1 bookmarks
Unit of the form $n\alpha + m \beta \sqrt{d}$ in real quadratic fields
1 answers
4 votes
266 views
Proof for known values of the Hermite constant
3 answers
4 votes
297 views
5 bookmarks
Finite sum $\sum_{k=1}^{p-1} \frac{1-\cos\left(\frac{2\pi k r}{p}\right)}{1-\cos\left(\frac{2\pi k s}{p}\right)}$ for $\gcd(p,rs)=1$.
1 answers
4 votes
71 views
1 bookmarks
Which totally complex number field's embeddings correspond to geometric rotations/reflections in an argand diagram?
1 answers
3 votes
88 views
1 bookmarks
Determinant of a block matrix, blocks are transformations of the same matrix
3 answers
3 votes
1k views
1 bookmarks
Expand $\cos^n (x)$ in terms of $\cos{kx}$, $k=1,\dots,n$.
1 answers
2 votes
52 views
1 bookmarks
On the cardinality of rationals vs irrationals
1 answers
2 votes
299 views
Norm-Euclidean Domains Division Algorithm
2 answers
2 votes
380 views
Volume of an $n$-dimensional ellipsoid
1 answers
2 votes
86 views
2 bookmarks
Prove that $||u||\cdot ||v|| \geq |\langle u,v \rangle|$ for defined inner product
0 answers
1 votes
66 views
Determining Maximal Orders of a Quaternion Algebra
1 answers
1 votes
87 views
1 bookmarks
Multiplication over a cyclotomic field in terms of polynomials over the generators.
1 answers
1 votes
43 views
System of linear simultaneous equations
1 answers
1 votes
383 views
3 bookmarks
How does one define an inner product on the space $V=\mathbb{Q}_p^n$?
1 answers
0 votes
41 views
Maximising a multivariate linear function that includes the rounding in SAGE
1 answers
0 votes
119 views
Positive definite quadratic form over positive integer vectors
1 answers
0 votes
67 views
Show that the set of elements of a field whose valuation is less than or equal to 1 is the ring of integers of that field.
1 answers
0 votes
110 views
1 bookmarks
Calculate the integral $\int_{-1}^{1} \frac{(x-a)^2}{\sqrt{(1-x)}\ (1-ax)^4} dx$