{"product_id":"9781470415488","title":"Reduced Fusion Systems Over 2-Groups of Sectional Rank at Most 4","description":"The author classifies all reduced, indecomposable fusion systems over finite $2$-groups of sectional rank at most $4$. The resulting list is very similar to that by Gorenstein and Harada of all simple groups of sectional $2$-rank at most $4$. But this method of proof is very different from theirs, and is based on an analysis of the essential subgroups which can occur in the fusion systems.","brand":"Bob Oliver","offers":[{"title":"Default Title","offer_id":46776511856958,"sku":"9781470415488","price":0.0,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4357\/7662\/products\/9781470415488_5e910f45-8ab4-402d-a367-daf0d0aac112.jpg?v=1707476974","url":"https:\/\/exclusivebooks.co.za\/products\/9781470415488","provider":"Exclusive Books Online","version":"1.0","type":"link"}