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Solving Polynomial Equation Systems IV: Volume 4, Buchberger Theory and Beyond PDF

834 Pages·2016·3.744 MB·English
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SOLVING POLYNOMIAL EQUATION SYSTEMS VolumeIV:BuchbergerTheoryandBeyond InthisfourthandfinalvolumetheauthorextendsBuchberger’salgorithminthree differentdirections.First,heextendsthetheorytogroupringsandotherOre-like extensions,andprovidesanoperativeschemethatallowsonetosetaBuchberger theoryoveranyeffectiveunitaryring.Second,hecoverssimilarextensionsastools fordiscussingparametricpolynomialsystems,thenotionofSAGBIbases,Gröbner basesoverinvariantringsandHironaka’stheory.Finally,MorashowshowHilbert’s followers–notablyJanet,GuntherandMacaulay–anticipatedBuchberger’sideas anddiscussesthemostpromisingrecentalternativesbyGerdt(involutivebases)and Faugère(F andF ). 4 5 Thiscomprehensivetreatmentinfourvolumesisasignificantcontributionto algorithmiccommutativealgebrathatwillbeessentialreadingforalgebraistsand algebraicgeometers. EncyclopediaofMathematicsandItsApplications Thisseriesisdevotedtosignificanttopicsorthemesthathavewideapplicationin mathematicsormathematicalscienceandforwhichadetaileddevelopmentofthe abstracttheoryislessimportantthanathoroughandconcreteexplorationofthe implicationsandapplications. BooksintheEncyclopediaofMathematicsandItsApplicationscovertheir subjectscomprehensively.Lessimportantresultsmaybesummarizedasexercises attheendsofchapters.Fortechnicalities,readerscanbereferredtothe bibliography,whichisexpectedtobecomprehensive.Asaresult,volumesare encyclopedicreferencesormanageableguidestomajorsubjects. EncyclopediaofMathematicsandItsApplications AllthetitleslistedbelowcanbeobtainedfromgoodbooksellersorfromCambridge UniversityPress.Foracompleteserieslistingvisit www.cambridge.org/mathematics. 114 J.BeckCombinatorialGames 115 L.BarreiraandY.PesinNonuniformHyperbolicity 116 D.Z.ArovandH.DymJ-ContractiveMatrixValuedFunctionsandRelatedTopics 117 R.Glowinski,J.-L.LionsandJ.HeExactandApproximateControllabilityforDistributed ParameterSystems 118 A.A.BorovkovandK.A.BorovkovAsymptoticAnalysisofRandomWalks 119 M.DezaandM.DutourSikiric´GeometryofChemicalGraphs 120 T.NishiuraAbsoluteMeasurableSpaces 121 M.PrestPurity,SpectraandLocalisation 122 S.KhrushchevOrthogonalPolynomialsandContinuedFractions 123 H.NagamochiandT.IbarakiAlgorithmicAspectsofGraphConnectivity 124 F.W.KingHilbertTransformsI 125 F.W.KingHilbertTransformsII 126 O.CalinandD.-C.ChangSub-RiemannianGeometry 127 M.Grabischetal.AggregationFunctions 128 L.W.BeinekeandR.J.Wilson(eds.)withJ.L.GrossandT.W.TuckerTopicsinTopological GraphTheory 129 J.Berstel,D.PerrinandC.ReutenauerCodesandAutomata 130 T.G.FaticoniModulesoverEndomorphismRings 131 H.MorimotoStochasticControlandMathematicalModeling 132 G.SchmidtRelationalMathematics 133 P.KornerupandD.W.MatulaFinitePrecisionNumberSystemsandArithmetic 134 Y.CramaandP.L.Hammer(eds.)BooleanModelsandMethodsinMathematics,Computer Science,andEngineering 135 V.BerthéandM.Rigo(eds.)Combinatorics,AutomataandNumberTheory 136 A.Kristály,V.D.Ra˘dulescuandC.VargaVariationalPrinciplesinMathematicalPhysics, Geometry,andEconomics 137 J.BerstelandC.ReutenauerNoncommutativeRationalSerieswithApplications 138 B.CourcelleandJ.EngelfrietGraphStructureandMonadicSecond-OrderLogic 139 M.FiedlerMatricesandGraphsinGeometry 140 N.VakilRealAnalysisthroughModernInfinitesimals 141 R.B.ParisHadamardExpansionsandHyperasymptoticEvaluation 142 Y.CramaandP.L.HammerBooleanFunctions 143 A.Arapostathis,V.S.BorkarandM.K.GhoshErgodicControlofDiffusionProcesses 144 N.Caspard,B.LeclercandB.MonjardetFiniteOrderedSets 145 D.Z.ArovandH.DymBitangentialDirectandInverseProblemsforSystemsofIntegraland DifferentialEquations 146 G.DassiosEllipsoidalHarmonics 147 L.W.BeinekeandR.J.Wilson(eds.)withO.R.OellermannTopicsinStructuralGraphTheory 148 L.Berlyand,A.G.KolpakovandA.NovikovIntroductiontotheNetworkApproximationMethod forMaterialsModeling 149 M.BaakeandU.GrimmAperiodicOrderI:AMathematicalInvitation 150 J.Borweinetal.LatticeSumsThenandNow 151 R.SchneiderConvexBodies:TheBrunn–MinkowskiTheory(SecondEdition) 152 G.DaPratoandJ.ZabczykStochasticEquationsinInfiniteDimensions(SecondEdition) 153 D.Hofmann,G.J.SealandW.Tholen(eds.)MonoidalTopology 154 M.CabreraGarcíaandÁ.RodríguezPalaciosNon-AssociativeNormedAlgebrasI:The Vidav–PalmerandGelfand–NaimarkTheorems 155 C.F.DunklandY.XuOrthogonalPolynomialsofSeveralVariables(SecondEdition) 156 L.W.BeinekeandR.J.Wilson(eds.)withB.ToftTopicsinChromaticGraphTheory 157 T.MoraSolvingPolynomialEquationSystemsIII:AlgebraicSolving 158 T.MoraSolvingPolynomialEquationSystemsIV:BuchbergerTheoryandBeyond 159 V.BerthéandM.Rigo(eds.)Combinatorics,WordsandSymbolicDynamics 160 B.RubinIntroductiontoRadonTransforms:WithElementsofFractionalCalculusandHarmonic Analysis 161 M.GherguandS.D.TaliaferroIsolatedSingularitiesinPartialDifferentialInequalities 162 G.MolicaBisci,V.RadulescuandR.ServadeiVariationalMethodsforNonlocalFractional Problems 163 S.WagonTheBanach–TarskiParadox(SecondEdition) Encyclopedia of Mathematics and Its Applications Solving Polynomial Equation Systems Volume IV: Buchberger Theory and Beyond TEO MORA UniversityofGenoa UniversityPrintingHouse,CambridgeCB28BS,UnitedKingdom CambridgeUniversityPressispartoftheUniversityofCambridge. ItfurtherstheUniversity’smissionbydisseminatingknowledgeinthepursuitof education,learningandresearchatthehighestinternationallevelsofexcellence. www.cambridge.org Informationonthistitle:www.cambridge.org/9781107109636 ©CambridgeUniversityPress2016 Thispublicationisincopyright.Subjecttostatutoryexception andtotheprovisionsofrelevantcollectivelicensingagreements, noreproductionofanypartmaytakeplacewithoutthewritten permissionofCambridgeUniversityPress. Firstpublished2016 AcatalogrecordforthispublicationisavailablefromtheBritishLibrary ISBN–VolumeI 978-0-521-81154-5Hardback ISBN–VolumeII 978-0-521-81156-9Hardback ISBN–VolumeIII978-0-521-81155-2Hardback ISBN–VolumeIV978-1-107-10963-6Hardback CambridgeUniversityPresshasnoresponsibilityforthepersistenceoraccuracyof URLsforexternalorthird-partyinternetwebsitesreferredtointhispublication, anddoesnotguaranteethatanycontentonsuchwebsitesis, orwillremain,accurateorappropriate. Contents Adieu pageix PARTSEVEN: Beyond 1 46 Zacharias 3 46.1 Buchberger–ZachariasTheory 5 46.2 Kandri-Rody–Kapur: Strong Gröbner Bases over aEuclideanDomain 27 46.3 Pan:StrongGröbnerBasesoveraPrincipalIdealDomain 31 46.4 ZachariasRings 37 46.5 Möller:GröbnerBasesoverZachariasRings 42 46.6 Möller:GröbnerBasesoveraPrincipalIdealRing 48 46.7 Useless S-pairs and Gebauer–Möller Set in Principal IdealRings 50 46.8 Möller: Structural Theorem for Gröbner Bases over aPrincipalIdealRing 54 46.9 Lazard’sStructuralTheoremoveraPrincipalIdealRing 56 46.10 OreConditions 63 46.11 OreTheory 68 46.12 Lazard’s Structural Theorem for Ore Extensions overaPrincipalIdealDomain 83 46.13 MultivariateOreExtensions 85 46.14 IdealofVanishingPolynomial 96 47 Bergman 100 47.1 MöllerLeftLiftingTheoremforFreeAssociativeAlgebras 102 47.2 LeftGröbnerBasesforFreeAssociativeAlgebras 107 47.3 Möller’sRightLiftingTheoremandRightGröbnerBases forFreeAssociativeAlgebras 115 47.4 BilateralGröbnerBases:TheLiftingTheorem 117 47.5 BilateralGröbnerBases:Pritchard’sModule 121 47.6 Bilateral Gröbner Bases of an Ideal in a Free Monoid RingsoveraField 124 vi Contents 47.7 Pritchard’sProcedure 144 47.8 LaScala–Levandovskyy:LetterplaceIdeals 148 47.9 GröbnerBasisforWeakerAlgebras 157 47.10 Green:PathAlgebras 164 47.11 Reinert:BuchbergerTheoryonFunctionRings 172 47.12 deGraaf–Wisliceny–Gerritzen:GröbnerBases onMagmaAlgebras 184 48 Ufnarovski 191 48.1 UfnarovskiGraph 192 48.2 Ufnarovski: Finite-State Automata and Infinite Gröbner BasisComputation 198 48.3 2-VariableGraph 206 48.4 Shirayanagi:WordTree 207 48.5 Anick’sResolution 212 48.6 Borges:EliminationOrderingsandSymmetricGroups 217 48.7 TaxonomyofTermOrderings 221 48.8 IdealTheoreticalOperation 246 49 Weispfenning 256 49.1 Apel–Lassner:LieAlgebrasandBuchbergerTheory 258 49.2 Bergman:DiamondLemma 261 49.3 SkewandSolvablePolynomialRings 264 49.4 KredelConditions 268 49.5 Kandri-Rody–Weispfenning:SolvablePolynomialRings 271 49.6 TwistedPolynomialRings 278 49.7 Structural Theorem for Bilateral Ideals of a Twisted PolynomialRing 284 49.8 Gateva’sMonoid 288 49.9 Gateva:NoetherianityofFinitelyPresentedAlgebras 291 49.10 Gateva:BinomialSkewPolynomialRings 298 49.11 WeispfenningRings 314 49.12 La Scala–Levandovskyy: Ore Extension of Multivariate PolynomialRings 324 49.13 LaScala:BuchbergerTheoryforPartialDifferenceIdeals 332 50 Spear2 335 50.1 Zacharias’CanonicalRepresentation 336 50.2 TermOrdering 349 50.3 Pseudovaluations 351 50.4 GröbnerBasesandBuchbergerTheory 359 50.5 Möller’sLiftingTheorem 363 50.6 Spear’sTheorem 371 50.7 Pseudovaluations(2) 377 50.8 TowardBuchberger’sAlgorithm 381 50.9 Buchberger’sAlgorithms 383 50.10 TheArithmeticoftheAssociatedGradedRing 386 Contents vii 50.11 Noetherianity 394 50.12 CanonicalForms 397 50.13 CaseStudies 399 51 WeispfenningII 423 51.1 ComprehensiveGröbnerBases 425 51.2 Montes’Algorithm 429 51.3 CanonicalComprehensiveGröbnerBases 436 51.4 Wibmer:RegularFunctions 441 51.5 Kapuretal.:BranchingviaSolvingTechniques 444 51.6 Montes–Wibmer:CanonicalGröbnerCover 446 51.7 VonNeumannRegularRings 449 51.8 GröbnerBasesoverVonNeumannRegularRings 454 51.9 ComprehensivenessofGröbnerBasesoverVonNeumann RegularRings(1) 457 51.10 Suzuki–Sato:AlternativeComprehensiveGröbnerBases 459 51.11 ComprehensivenessofGröbnerBasesoverVonNeumann RegularRings(2) 465 52 Sweedler 468 52.1 ValuationRings 471 52.2 Mosteing–Sweedler:ValuationsandFiltrations 492 52.3 Mosteing–Sweedler:CharacterizingTermOrderFiltration 510 52.4 SubalgebraBases 514 52.5 SAGBIBasesforPolynomialInvariantsof AlternatingGroups 519 52.6 FinitenessofSAGBIBases 528 52.7 Göbel’sBasisforInvariantRings 531 52.8 Buchberger’sAlgorithmforSymideals 536 52.9 Aschenbrenner–Hillar:BuchbergerTheory forSymmetricIdeals 542 52.10 VariationsonSAGBI 552 53 Hironaka 565 53.1 ATheoryofNormalForms 567 53.2 NormalFormsandStandardBases 572 53.3 TheZariskificationofthePolynomialRing 576 53.4 TheTangentConeAlgorithm 581 53.5 StandardBasisAlgorithms 587 53.6 TheNormalFormAlgorithm 589 53.7 L-adicValuation,Localization,Zariskification 592 53.8 StandardBasesinLocalRings 593 54 HironakaII 597 54.1 Alonso–Luengo–RaimondoModelforAlgebraicPowerSeries 597 54.2 CanonicalFormsintheRingofAlgebraicPowerSeries 601 54.3 StandardBasesintheRingofAlgebraicPowerSeries 604 54.4 AnEffectiveVersionoftheWeierstrassPreparationTheorem 611 viii Contents 54.5 Alonso–Castro–Hauser:AnEffectiveVersionofHironaka’s HenselianWeierstrassTheorem 620 54.6 BranchesofaCurveataSingularPoint 622 54.7 TowardMacMillan’sAlgorithm 626 54.8 MacMillan’sAlgorithm 630 55 Janet 633 55.1 JanetDecomposition 635 55.2 Riquier–JanetCompletion 651 55.3 Degree-compatibleTermOrderingandConvergency 658 55.4 JanetandHilbert 661 55.5 Janet:Involutiveness 664 55.6 Term Orderings and the Borel Property in Riquier andHisFollowers 682 56 MacaulayV 691 56.1 Macaulay’sFormula 692 56.2 HilbertFunction 700 56.3 Sperner’sProofofMacaulay’sFormula 702 56.4 Gunther: Borel Relation and Borel Invariancy of GenericForms 708 56.5 Gunther:Macaulay-likeFormulafortheBorelSet 716 56.6 Gunther’sProofofMacaulay’sFormula 720 56.7 Gunther:HilbertFunctionComputation 729 56.8 Gunther:Riquier–JanetProcedure 734 56.9 Bigatti–Hulett:BettiNumbersandLexSegments 740 56.10 Marinari–Ramella:RevlexSegments 744 56.11 Cioffi–Roggero:J-markedFamilies 750 57 GerdtandFaugère 757 57.1 Gerdt 758 57.2 Faugère 778 57.3 Mayr:Space-efficientGröbnerBasisComputation 796 57.4 Congedo: Buchberger–Wiesinger-Widi Groebnerian- GaussianBound 800 Bibliography 803 Index 813

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