Per Alexandersson's user avatar
Per Alexandersson's user avatar
Per Alexandersson's user avatar
Per Alexandersson
  • Member for 14 years, 5 months
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5 votes
0 answers
197 views

Examples of combinatorial bijections found by considering functors

5 votes
0 answers
151 views

Pattern avoidance in Young diagrams

5 votes
1 answer
485 views

Bijection between Littlewood-Richardson tableaux and ordinary skew tableaux?

5 votes
1 answer
446 views

Christmas giftgiving

4 votes
2 answers
310 views

Algebraic function with extra condition, what can it be?

4 votes
1 answer
854 views

Is there a mathematical object called "ivy"?

4 votes
1 answer
272 views

Elementary proof of K-saturation conjecture

4 votes
2 answers
744 views

Sequence of semi-standard Young tableaux, counting

4 votes
5 answers
706 views

Lattice points in dilated polytopes and sumsets

4 votes
1 answer
531 views

Tiling with restricted overlap

4 votes
2 answers
407 views

Marked chain polytope, has this been studied?

4 votes
0 answers
192 views

(Double) Crystal reflection operators on SSYTs

4 votes
1 answer
171 views

Are all marked order polytopes normal?

4 votes
1 answer
270 views

Shift-invariant symmetric functions in representation theory?

4 votes
1 answer
261 views

On a conjecture by Hibi regarding h-vectors

4 votes
1 answer
938 views

Simplex in convex polytope, pulling triangulation

4 votes
1 answer
134 views

Results where complexity bounds implies finite number of test cases

4 votes
2 answers
420 views

Unimodular triangulation and Ehrhart polynomials

4 votes
2 answers
350 views

Linear operator on polynomials and invariant sets of roots

4 votes
1 answer
287 views

Inequality, monotone convergence of certain Riemann sum

3 votes
1 answer
738 views

Trace and exterior product

3 votes
0 answers
70 views

Schur positive expression involving border-strip tableaux

3 votes
0 answers
132 views

A recursion involving binomial coefficients: looking for a q-analog

3 votes
0 answers
43 views

Convexity of integral trajectories of rational vector field

3 votes
0 answers
159 views

Counting matchings and perfect matchings

3 votes
1 answer
196 views

Normality property of powers of integers?

3 votes
1 answer
193 views

Braid group: Can a left-twist increase the number of right twists?

3 votes
2 answers
677 views

Skew Kostka coefficients from Littlewood-Richardson Coefficients

3 votes
2 answers
989 views

Find symmetries of a tree

3 votes
1 answer
478 views

Find recurrence in Pascal-like triangle of polynomials