Polynomials with only real zeros
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Abstract
Conditions which ensure that a combination of real polynomials, which have real interlacing zeros, continues to have only real zeros are derived. This gives a generalization of a result of Haglund and is proved using a unied method of Liu-Wang-Yeh.
2000 Mathematics Subject Classication : 05A15, 05A20, 26C10
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References
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