Applications
The second algebraic K-group K2(R) of a commutative ring R can be identified with the second homology group H2(E(R), Z) of the group E(R) of (infinite) elementary matrices with entries in R.
Read more about this topic: Schur Multiplier
Applications
The second algebraic K-group K2(R) of a commutative ring R can be identified with the second homology group H2(E(R), Z) of the group E(R) of (infinite) elementary matrices with entries in R.
Read more about this topic: Schur Multiplier