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Logarithmically concave sequence
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Mathematics
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A
sequence
\((
a
_
n
)_{
n
=
1
}^\infty\) is said to be logarithmically concave if for all \(
n
\geq
1\)
, the following condition holds: \[
a
_
n
^
2
\geq
a
_{
n
-
1
} \cdot
a
_{n+1} \] This condition can also be equivalently expressed using
logarithms
.
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