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Results tagged with positivity
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user 1056
3
votes
0
answers
72
views
Schur positive expression involving border-strip tableaux
Recall the power-sum expansion of Schur functions,
$$
s_\lambda = \sum_\mu \chi^{\lambda}(\mu) \frac{p_\mu}{z_\mu},
$$
in terms of Sn-character. These can be calculated
by the Murnaghan-Nakayama rule, …
- 15.8k
12
votes
3
answers
1k
views
What techniques are there to prove Schur positivity?
As the title says, what methods exists for proving that a symmetric polynomial (or function) is Schur positive, perhaps involving extra parameters, in which case coefficients should be polynomials in …
- 15.8k