Proof of the Monotone Column Permanent Conjecture
Proof of the Monotone Column Permanent Conjecture
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DOI:
10.1007/978-3-0348-0142-3_5
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发表时间:
2010-10
期刊:
影响因子:
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通讯作者:
P. Brand'en;J. Haglund;M. Visontai;D. Wagner
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文献类型:
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作者:
P. Brand'en;J. Haglund;M. Visontai;D. Wagner
LetAbe ann-by-nmatrix of real numbers which are weakly decreasing down each column,Zn= diag(z1,…,zn) a diagonal matrix of indeterminates, andJnthen-by-nmatrix of all ones. Weprove that per(JnZn+A) is stable in thezi, resolving a recent conjecture of Haglund and Visontai. This immediately implies that per(zJn) is a polynomial inzwith only real roots, an open conjecture of Haglund, Ono, and Wagner from 1999. Other applications include stability of a multivariate Eulerian polynomial, a new proof of Grace’ apolarity theorem, and new permanental inequalities.