<s>
It	O
is	O
used	O
in	O
computer	B-General_Concept
algebra	I-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
The	O
algorithm	O
creates	O
the	O
following	O
block	B-Algorithm
matrix	I-Algorithm
of	O
size	O
:	O
</s>
<s>
Also	O
,	O
is	O
the	O
kernel	B-Algorithm
of	O
,	O
the	O
projection	O
restricted	O
to	O
.	O
</s>
<s>
The	O
Zassenhaus	B-Algorithm
algorithm	I-Algorithm
calculates	O
a	O
basis	O
of	O
.	O
</s>
