Ilya Bogdanov

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Name Ilya Bogdanov
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Location Moscow
Age 35
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18
Integer solutions of x^n + y^n = z^{n-1}
14
maximal order of elements in GL(n,p)
12
The sum of same powers of all matrices modulo p
11
A differential inequality needed to prove a theorem about odd-dimensional souls
8
What is the most extreme set 4 or 5 nontransitive n-sided dice?
8
The powers of non-empty subset of a group that generate a subgroup
7
Three half circles on the plane may not meet nicely
6
On reducible polynomials with positive coefficients, $1$ as constant coefficient and certain bounds on coefficients
6
Inequality of arithmetic and geometric means for the lattice polytopes?
5
Infinite domain with finite number of prime ideals(elements)
5
submonoid of a matrix monoid with a common eigenvector
5
Increasing sequence of normal magic squares
4
Sum of commuting semisimple operators
4
Walks that cannot hit the boundary
3
Vapnik-Chervonenkis dimension of lines in the plane
2
Approximation by polynomials
2
bilinear equation OR diagonal matrix search
2
Angle btween Coordinate Vector and Normal Vector of Facet in a Convex Polytope, Asking for a Counterexample
2
How much local is the information encoded by the isoperimetric constant of a graph?
2
Can you hide a letter without losing information?
2
Lattice basis with Gram-Schmidt vectors of increasing length
2
Can you prove that hypergraphs with n-1 edges are partially 2 colorable?
2
How to divide a n dimensional simplex in n+1 equal parts
1
Hypergraph coloring
1
Number of matrices of a given rank satisfying this condition
1
Covering of a partial order by upwards convex sets
1
A quantitative version of Straszewicz’s theorem?
1
Chain of ideals in a complex algebra
1
Intersecting Hamming spheres: is $|A\stackrel k+E|\ge|A|$?
1
Maximal sets of algebraic curves, closed under rotation, dilation, and translation, that pairwise intersect at most twice
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