<s>
In	O
mathematics	O
,	O
a	O
Nekrasov	B-Algorithm
matrix	I-Algorithm
or	O
generalised	O
Nekrasov	B-Algorithm
matrix	I-Algorithm
is	O
a	O
type	O
of	O
diagonally	O
dominant	O
matrix	O
(	O
i.e.	O
</s>
<s>
Specifically	O
if	O
A	O
is	O
a	O
generalised	O
Nekrasov	B-Algorithm
matrix	I-Algorithm
,	O
its	O
diagonal	O
elements	O
are	O
non-zero	O
and	O
the	O
diagonal	O
elements	O
also	O
satisfy	O
,	O
</s>
