Per Alexandersson

Zurich, Switzerland

www2.math.su.se/~per

Age: 27

Currently interested in Schur functions and semistandard Young tableaux and misc. related representation theory and combinatorics.

Phd thesis defended 2013, titled Combinatorial Methods in Complex Analysis.

I keep an eye out for interesting results related to complex dynamics, computability, and computer-assisted research. I use Mathematica extensively in my research. My other main programming languages are Java, LaTeX, PHP, C, etc.

18h
awarded Good Question
1d
reviewed Approve suggested edit on Why is $ \frac{\pi^2}{12}=\ln(2)$ not true?
1d
awarded Autobiographer
1d
reviewed Approve suggested edit on Automorphism theorem
1d
reviewed Approve suggested edit on Hopf algebra structure on the universal enveloping algebra of a Leibniz algebra?
2d
reviewed Approve suggested edit on Reference request: automorphism of abelian $p$-groups of rank 2
2d
reviewed Approve suggested edit on Questions about the $\mathbf{i}$-trails of Berenstein and Zelevinsky
2d
comment The Eyeball Theorem generalized
Trying to interpolate between circles and squares, I tried with curves of the type $(r^d-x^d)^{1/d}$ but this does not work with the "obvious" generalization.
Dec
19
awarded Yearling
Dec
19
awarded Great Question
Dec
17
awarded Nice Answer
Dec
16
comment How prove this polynomial inequality from a book
Is this perhaps related to the Van der Waerden conjecture (now theorem) on the end of this page? en.wikipedia.org/wiki/Doubly_stochastic_matrix
Dec
15
comment What are examples of good toy models in mathematics?
Well, yes, but that would be inconvenient.
Dec
15
answered What are examples of good toy models in mathematics?
Dec
15
answered The "point" to an Atheists existence
Dec
15
comment how to get continuation of square matrices with periodic diagonal band automatically?
This is quite a complex task, unless you specify what exact type of continuations you mean... You say periodic, so I would guess start by writing a peroid-finding function for lists...
Dec
15
comment Unable to compute the area of region
Hm, why do you write the numbers as strings?
Dec
15
reviewed Approve suggested edit on What is interesting/useful about Castelnuovo-Mumford regularity?
Dec
14
comment Numbers with all N-digit prefixes divisible by N
It feels like this problem is quite hard; digits mixed with divisibility properties is complicated; for example, I dont think it has been proved that there are infinitely many palindrome primes in, say, base 2...
Dec
14
comment On a positivity property of Hall-Littlewood polynomials
@IgorMakhlin: Yes, agree, this is quite strange. I wonder if there is some normalization somewhere that causes this.
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