Saggsic ientifici KeiDtehv lin Dovev a mlaat ematica BollBaotrii nghieri Priemdai zmiaorn1zeo9 4 9 1949 BollBaotrii ngehdiietsro..irr leT. o,r icnoor,Vs iott orEimoa nu8e6l e © Id irdiimt etmio rizezlaeztitodrniroe in pircoad,eud ziai doantet atmoetonap tlaoer ziale coqnu alsmieazsz(ioc ompirm eiscir oef iclloemp fitoeo sitcahsteo)nr oi saetriv SatmpaitnIoa t ldiaal Sltmaap atdriTe o rino 6-189015- 88-383409--20 CL ISBN Titoorliog Miantahleem TahtNeie cwsG :o ldAegne PenugiBno o1k8s98 198K8e iDtehv lin © TraduzdiiAo nnnea rGoisanane tetA ig neMsaen assero Idnice Fontdie llfei gure 7 8 Ringraziamenti 9 Prefazione Dovev al am atematica Numerpir i,sm ciomposizioenc eo dsiiencgi r feattit ori IJ r. Ipli gùr ande numemroon d1po3r, iN muome rdpier li,1 m 4i It edsipt r i mali1t8à I,n umeprriid miMi e rse2n2n eS,c omposiinfz aitot2no5er i, In umedriFi e ramt2,7 Una mamteentmeas ttriiaclbai a3n0t Neu,m eri peertft3i1, C odisceigt ri3e,4 Gliin esmi,il i'nfienl iant oodne -cidtiàb ili 4I 2. Nuoovrii nztz4io1, Imle toadsioso mat4i2c Uon,e e smp:ig oliin t4e5r i, Consisctoemnpzlaev,te erz4iz7ta à,I,t eordeiimn ic ompldeiG toedze49zi a, Lat eoarsisai odmeagtilineicsm aii5 ,0 Insiiennmfiiit5 4i , trIa nsef initi il prodebcllo enmutaodi inC anto5r8, I lt eordeiCm aan t6o1r , 66 3.I s imsitn eumereii plcr io bldeenmlua m edrico l assi Las oluzdiiuo npn reo bclehhmea1a 0 8a nn6i6, L en otepvroolpidr einelut à mer1o36 6,6 Ip rismiis temi nuImn eurmiecrii, 7n73e1 gI an tumievrii, rea7l4i I,n umecroim pl7e6s sIqi u,a terniGolniiin ,td eiGr aiu ss, 82 Br Iplr obldeenmlua m edrico l assi, 83 88 4.B elelzzdaac la os Lab ellienmz aztae ma8t8i Qcuaa,n èlt uon ga cloas tdlieiellnraeaa B G rrean tagn9a0? N,u ovdei mieonns9i4, A llsac opdeiur ntn au omvoon ,d9 o9 Ordiecn aeo rsoo, Gliin sideJimuil1 i50a ,L i'nsideiMm aen del1b80r ot, II5 5·I g rupspepiml ici Itle oreenmoar Im eI, É v5a rGiasiltoseII, 6 Las immeIt2 r0i Iacl,o n- cetdtigo r upIp2o2,A ltersie mdpigi r u,pI p3i0I g rupspeim plIi3c5i , Iplr obldeemlcall aa ssifI3i c8a Lzedi iocniefo,at mtioeg lgiir eu psppio ra dicIi04, r47 6.Ild ecipmroo bldeiHm ilab ert Unbar eve rsatsosrIei4gc7naL a,e e quazionie l ad'ligoofreaiuntctmleoie deoI,94 Algoreim tamcic hdiiTn uer ,iI n5g2I nsiemi cIa5l5c olabili, Idle cipmroo bldeiHmi alr btIe,o6 cIo ndigiFli ib oneal craci is olduiz ione Matja,sI e36v ic r67 7.I lp robldeeqmiua a tctorloo ri Lam atemacotinicl ca al codliavteoanrdlteuta Ia 6,7 I plr obldeiGm uat h riIe96, Mappe,et gorpaoflIio7 g2iL aaf, o rmduEil ual eIr7o7,I tle o remdaid eM ogranI,o8 Itle ordeemciai nqcuoel oIr8iI,I lme toddio KempIe68, Laf ormduiHl eaa woIo88d ,V eristloe ordeemqiau aot tr colIo0r9 i,Im le toddeolc laard iiHc eae sIc9h2,L ad imostdreatlze ioo-ne remdae qiu atctorlooI r 9i4, I97 8.L u'ltitmeoo rdeiFm ear mat Iplr oblpeifmùaa m odseolm laat emaIt9i7cL aet, e rpniet ago2r0iIc heI,l casn=o4 ,2 03I cla ns=o3 , 208 duceAa lsnt=ir5 :i n e= ,72 OI Gli intceircil oetl oa'mnincuind ciLi aom 2é , Kummeer n iu meri 2i Id e3a li, rr I numerrie gpor2liaImr4iiL ,as iatzuioantetl ue2a,6I Ilf utu2rIo9, 22r 9·Pr obldeimfifs iucniiu lmiec roipm lsesi Una rgomceonmtpol 2eI2s sDoi,v ertciominne unmtei2r 2i5,I pli iùm por tanttrieap robliermrlii,t2 s i2o7L i'potdeiRs iie ma2n3n3,L ac onget- tudraiM erntse2,3 6L ac ongedtiBt iuerbae ,r2 b4a2c h 249 Nodeia ltqrueets iotnoip ologiche IO. Bosyc uotf,i seiu cnai l,tl riob,2 r 4o9 Cosl'atè o pol2o5gi0aC ?o,ms ei fat opol2o5g6iT ao?p,o ldoengioi da2i 5,9 O letl rsau per2f7i0cL iae , congedtiPt ouirna,c 2 a7r7éL at eodreilavl aiere t2à7,9 284 Le'ffnizcdaie egalglio rii tm II . Ancoarlagt omr2ii48, Iplr obdleeclmo am mevsisaog g2i8a8tPo rNeeP ,2, 9 0 Ritoarlnrloeal a tlàap: r ogrammlaiznie2oa9nr3ee , 30r Lettudriae p profondimento 305 Indidceeni o mi 3 90 Indiacnea litico Fontdie lflieg ure Fig4u.r14e., 1-4 .061:H. POe.i tePg eH. nR ichLtabe erl,le dezifz rata talBio,l Bloartiin ghieri, Tori1n89o7. Figu4.r2e4., 3 :M aBn.d etlF,bar rcotFaolsrm:C, h anacneDd i mensWi.o nFH,r. e eamnadn Co.N,e wY or1k9 77. Fig4u.r7La:M. . B lumeenK t.Mh eanlg Setru,di inGee so meWt.ryH ,.F reeamnaCdno ,N. ew Yor1k79 0. Figu74r·e e7 .:« 1cSienAtmiefriiccW a.Hn .>F >r,e eamnaCdno .N,e wY or.k Figu1r01a.0 C:o rdAornBt V . RINGRAZIAMENTI Comet utitm ia teamtidc'igo gip,o ssdoe finiersmpie ritnuo n a'remai nima diu nc ampvoa steio n c ontisnvuiol u.pQ puoindnie,tl entiavdoti o ffrire unr endiceosnuatroi teens,o nd ovurtioc orarle'lirauet doia ltsrtiu dipoesri elimingalerire r oirnie vbiitlamepnrtees ennetlipl rai msat esuIrm iae.ri i n graziamsepneattnitop ercaiS òi Mri chaAetli yaAhm,a ndCah etwnydD,a vid Nels,oS netphePno werH,e rmantneR ielMeo,r weTnh istletehD waaviitde Towersc,h eh anno lettoop artdtueetml ta on oscreim tiht aon no dato pre ziossuig giemretniG.ra ziaen chael lPae nguin Bcohoefk isdn a l'lniizhiao dimotsravtiov ion teesrspee qru elclhoep otesveam bruanrc eo mpito impos sib,il lace ompilazdiiuo nnt ee s«tdoi vulga»ts iuvlmolaat erpiiaùi mpene tarbicloen pcietdaa 'lolumoE.v enutaloim isosniie de rrosroin iom pubtiali esclusivaam mee.n te