<s>
In	O
mathematics	O
,	O
negacyclic	B-Algorithm
convolution	I-Algorithm
is	O
a	O
convolution	B-Language
between	O
two	O
vectors	O
a	O
and	O
b	O
.	O
</s>
<s>
It	O
is	O
also	O
called	O
skew	O
circular	B-Algorithm
convolution	I-Algorithm
or	O
wrapped	O
convolution	B-Language
.	O
</s>
