Correction to a Theorem on Total Positivity
AbstractA well-known theorem states that if f (z) generates a PFr sequence then 1/f(–z) generates a PFr sequence. We give two counterexamples which show that this is not true, and give a correct version of the theorem. In the infinite limit the result is sound: if f(z) generates a PF sequence then 1/f(–z) generates a PF sequence.
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1998 ◽
Vol 271
(1-3)
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pp. 257-272
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2021 ◽
Vol 2
(1)
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pp. 117-130
1997 ◽
pp. 313-318
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