{"product_id":"9788876422898","title":"De Concini-Procesi models of arrangements and symmetric group actions","description":"\u003cp\u003eIn this thesis we deal with the models of subspace arrangements introduced by De Concini and Procesi. In particular we study their integer cohomology rings, which are torsion free Z-modules of which we find Z-bases. When the considered arrangement is the braid hyperplane arrangement, this leads to the study of the integer cohomology rings of the moduli spaces of n-pointed curves of genus 0 and of their Mumford-Deligne compactifications. We deal with the action of the symmetric group on the cohomology rings: we give explicit formulas for the associated generalized Poincaré series, and provide recursive formulas for the characters.\u003c\/p\u003e","brand":"Scuola Normale Superiore","offers":[{"title":"Default Title","offer_id":47063778918640,"sku":"9788876422898","price":14.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9788876422898_p0.jpg?v=1763779325","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9788876422898","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}