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- October 9th 2011, 04:30 AM #1

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## A zero problem.

Dear all,

I am stuck for two weeks on the next problem. All the numerical test I did show that it is true, but I do not find any proof.

let and , reals numbers in ,

such that :

show that the function :

as at most one root in .

Any idea is welcome ! Thank you !

- October 9th 2011, 10:17 AM #2

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- October 9th 2011, 12:07 PM #3

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- October 9th 2011, 01:13 PM #4

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- October 9th 2011, 01:24 PM #5

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- October 9th 2011, 02:17 PM #6

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