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10h
reviewed Approve A reference about Grassmannian over finite fields
10h
reviewed Approve Example of a compact geodesic space, which is not doubling
Feb
5
reviewed Approve Distinguished triangle and short exact sequence
Feb
4
reviewed Approve Elementary prime-generating sequences
Feb
4
comment Most discriminants are almost squarefree
Jerry Wang recently gave a talk here (Waterloo) where he claimed to have proved the expected counting theorem for square-free discriminants for every degree with Bhargava and Shankar. The trick is to generalize the 'using geometry of numbers to count orbits having bounded invariants' method to cases where the group acting on the space is not reductive. This paper has not yet appeared, even on arxiv, as far as I know. I assume it will be a sequel to this paper: arxiv.org/pdf/1512.03035.pdf
Feb
3
comment Hard maths on viXra?
On the first page on number theory I see a purported proof of the Goldbach conjecture (vixra.org/abs/1601.0109), the Collatz conjecture (vixra.org/abs/1601.0299), and a disproof of the Riemann hypothesis (vixra.org/abs/1601.0281). The total length of these papers is 27. I would therefore boldly argue that this website is not at all trustworthy and people should be fine browsing just the arxiv.
Jan
31
reviewed Approve Can Gradient be controlled by Curl and Divergence in Morrey spaces
Jan
29
comment Lattice points near a curve
Also, Jing Jing Huang does a lot of work on this topic; searching his name on MathSciNet will likely be fruitful.
Jan
29
comment Lattice points near a curve
See Huxley's paper: Huxley, M. N. The integer points close to a curve. Mathematika 36 (1989), no. 2, 198–215 (1990). (Reviewer: S. W. Graham) 11J54 (11J71) This type of problem can also be approached by an extension of the Bombieri-Pila determinant method, due to Heath-Brown. This version is called the "approximate" determinant method. For example, see: blms.oxfordjournals.org/content/47/2/270 and Heath-Brown, D. R. Sums and differences of three kth powers. J. Number Theory 129 (2009), no. 6, 1579–1594
Jan
25
awarded  Popular Question
Jan
17
reviewed Approve Classification of knots by geometrization theorem
Jan
12
reviewed Approve Why do the $2$-Selmer ranks of $y^2 = x^3 + p^3 $ and $y^2 = x^3 - p^3 $ agree?
Jan
12
comment A certain invariant of non-singular algebraic surfaces
I am concerned with how atypical it is for such curves to be defined over $\mathbb{Q}$, a very rough measure would be the degree of $K$
Jan
11
asked A certain invariant of non-singular algebraic surfaces
Jan
11
reviewed Approve Given $v,w$ primes of $k$, is there $K/k$ so $K_v\cap\Bbb Q^{cycl}=K_w\cap\Bbb Q^{cycl}=K\cap\Bbb Q^{cycl}$?
Jan
11
reviewed Approve If $K=\langle$HCF of $\mathbb{Q}_{p}$, $\mathbb{Q}^\mathrm{cycl}\rangle$, does $K$ also contain all roots of elements of $\mathcal{O}_{K}^{\times}$?
Jan
11
reviewed Approve What are the advantages of the more abstract approaches to nonstandard analysis?
Jan
8
reviewed Approve A question on evaluation of complex integrals
Jan
7
comment Is this a proof of the Hardy-Littlewood inequality?
After a quick glance, seems hackish too me.
Jan
7
reviewed Reject Solving Non-Linear Equations over a Finite Field of a Large Prime Order