inversion pair

Noun

Meaning

inversion pair (plural inversion pairs)

(mathematics) a pair of integers



(
i
,
j
)


{\displaystyle (i,j)}

is an inversion pair of some permutation



σ


{\displaystyle \sigma }

if



i
<
j


{\displaystyle i
but



σ
(
i
)
>
σ
(
j
)


{\displaystyle \sigma (i)>\sigma (j)}

.

Close letter words and terms