{"product_id":"almost-completely-decomposable-groups-hardback","title":"Almost Completely Decomposable Groups - Hardback","description":"\u003cp\u003eAn almost completely decomposable abelian (acd) group is an extension of a finite direct sum of subgroups of the additive group of rational numbers by a finite abelian group. Examples are easy to write and are frequently used but have been notoriously difficult to study and classify because of their computational nature. However, a general theory of acd groups has been developed and a suitable weakening of isomorphism, Lady's near-isomorphism, has been established as the rightconcept for studying acd groups. A number of important classes of acd groups has been successfully classified. Direct sum decompositions of acd groups are preserved under near-isomorphism and the well-known pathological decompositions can actually be surveyed in special cases.\u003c\/p\u003e","brand":"Taylor \u0026 Francis","offers":[{"title":"Default Title","offer_id":45565091053806,"sku":"9789056992255","price":285.6,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/9612\/7726\/files\/9789056992255.jpg?v=1720675310","url":"https:\/\/bookland.com.au\/products\/almost-completely-decomposable-groups-hardback","provider":"Book Land AU","version":"1.0","type":"link"}