<s>
In	O
mathematics	O
,	O
a	O
digital	B-Algorithm
manifold	I-Algorithm
is	O
a	O
special	O
kind	O
of	O
combinatorial	B-Algorithm
manifold	I-Algorithm
which	O
is	O
defined	O
in	O
digital	O
space	O
i.e.	O
</s>
<s>
A	O
combinatorial	B-Algorithm
manifold	I-Algorithm
is	O
a	O
kind	O
of	O
manifold	O
which	O
is	O
a	O
discretization	O
of	O
a	O
manifold	O
.	O
</s>
