Exercises:Rings and Modules - 2016 - 1/Problem 2
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Contents
[<hidetoc>]Problems
Problem 2
Part A
Compute the homology groups at Q5 and Z5 of the the following complexes:
- with f1:=(011011210011010) and f2:=(110−1−1220−2−2)
- with f1:=(011011210011010) and f2:=(110−1−1220−2−2)
Solution
Part B
Let:
be a commutative diagram of R-modules in which the rows are exact sequences. Show the Five lemma:
- If f1,f2,f4 and f5 are isomorphism then so is f3
Solution
Notes
References