Bakker, Hidde (author) This thesis is about homological algebra and singular (co)homology. <br/><br/>In the first chapter the notions of complexes of abelian groups, (co)homology of these complexes and injective resolutions will be introduced. Then Ext-groups will be defined and various properties dervied. A particularly interesting group, Ext(Q,Z), will be calculated...
bachelor thesis 2023