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500 个结果
  • 简介:BymeansofthetheoryofharmonicmapsintotheunitarygroupU(N),theauthorsstudyharmonicmapsintothesymplecticgroupSp(N).Thesymplecticunitonandsymplecticex-tendedunitonareintroduced.ThemethodofthesymplecticBacklundtransformationandtheDarbouxtransformationisusedtoconstructnewsymplecticunitonsfromaknownone.

  • 标签: 调和映射 辛群 达布变换 因式分解 酉群
  • 简介:<正>TheSteinberggroupoveraringalonganarbitrarysetisdefined.Itsproperties,structure,andisomorphismtheoryarestudied.

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  • 简介:LetGbeap-group(poddprime)andletX=Cay(G,S)bea4-valentconnectedCayleygraph.ItisshownthatifGhasnilpotentclass2,thentheautomorphismgroupAut(X)ofXisisomorphictothesemidirectproductGRAut(G,S),whereGRistherightregularrepresentationofGandAut(G,S)isthesubgroupoftheautomorphismgroupAut(G)ofGwhichfixesSsetwise.HowevertheresultisnottrueifGhasnilpotentclass3andthispaperprovidesacounterexample.

  • 标签: 自同构群 凯莱图 有限群 正规子群
  • 简介:Itisalreadyknownthatthereareseveralnonlinearitycriteriasuchasalgebrajcdegree,nonlinearity,distancetolinearstructures,correlationimmune,propagationcriterion,differentialuniformity,whichareusedtocheckwhetheracryptographicfunctionisweakornot,inthispaperwewilldiscussthesecriteriafromavaluationpointofview,andconsiderthelargesttransformationgroupwhichleaveacriterioninvariant,whichisnameditssymmetrygroup.itcanserveasawayofcoparingthestabilityofnonlinearitycriteriaundertheactionofinvertibletransformations.

  • 标签: 对称群 非线性准则 密码学函数 评价函数
  • 简介:China’sethnicminoritiesnotonlyenjoytheequalrightswiththemajorityHansasendowedbytheConstitutionandotherlaws,butalsoenjoytherighttoregionalautonomyinareaswhereminoritiesliveincompactcommunities.InFebruary2001,theNPCStandingCommitteerevisedthelawonethnicregionalautonomyforminorities,addingnewprovisionsonincreasinginvestmentintheareasofethnicminoritiestoacceleratelocaldevelopment.

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  • 简介:这份报纸被奉献在同类的组X上学习加权的强壮的空间的原子分解。一些结果是在欧几里德几何学的泛音分析学习的对象的扩展。

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  • 简介:Efficacyofacupuncturetherapyvariesinpatientswithsimilarailments.Thepresentstudywasundertakentosearchforamarkerforbetterefficacyofacupuncturetherapy.Thestudywasmadein224patientsincludingosteoarthritis141(62.94%),polyarthritis23(10.26%),Bursitis&synovitis15(6.69%)andothers45(20.08%).ABObloodgroupsweretestedforeachpatient.ItappearsthatpatientsbelongingtogroupABandBrespondedwelltoacupuncturetherapyinproportionatelymorenumber.Goodresultwasachievedin47.82%casesingroupABand46.04%casesingroupB,whereaspatientsofgroupAandOshowedgoodresultin27.65%and26.15%casesrespectively.ApparentlyitmaybeconcludedthatpatientsofAB&Bbloodgroupswouldrespondcomparativelywelltoacupuncturetherapy.

  • 标签: 针灸疗法 中医治疗 A型 B型 O型 血型
  • 简介:一问题的提出本刊2003年第5期刊载了《运用发现法解题》(以下简称《解题》)一文,文章在谈到“归纳发现法”时,提到这样一个例子:

  • 标签: 归纳发现法 初中 数学 解法 代数问题
  • 简介:OnMarch19,anacademicforumwasheldinJinanCity,ShandongProvince,onprotectionofvulnerablegroups’rights.SponsoredbytheLawSchoolofShandongUniversity,itgatheredsome50expertsfromtheCentralPattySchool,ChineseAcademyofSocialSciences,ChinaSocietyforHumanRightsStudies,ShandongHigherPeople’sCourt,aswellassomeresearchuniversitiesinthecountry.Foursubjectswerediscussedattheforum:definitionofvulnerablegroups,legalprinciplesforprotectionofvulnerablegroups’

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  • 简介:InSeptember2002,"OrganizingofNationalRareEarthEnterprisesGroup"whichwasdeliveredbyoriginalNationalEconomy&TradeCommitteeandoriginalNationalPlanningCommittee,MinistryofFinanceP.R.C,MinistryofLand&ResourceP.R.C.andMinistryofForeignEconomy&Trade,wasapprovedbytheStateCouncilofP.R.C.toorganizeSouthernandNorthernRareEarthGroups.OnOctober30,2002,ChinaNorthernREGroupCo.,LtdPreparationTeamheldthefoundationconventioninBaotou,whichdrewthecurtainof...

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  • 简介:<正>LetGbeafinitegroup.ThequestionhowthepropertiesofitsminimalsubgroupsinfluencethestructureofGisofconsiderableinterestforsomescholars.Inthispaperwetrytousec-normalconditiononminimalsubgroupstocharacterizethestructureofG.Somepreviouslyknownresultsaregeneralized.

  • 标签: c-normal SUBGROUP Supersolvable NILPOTENT GENERALIZED FITTING
  • 简介:<正>WepresentatwistedversionoftheAlexanderpolynomialassociatedwithamatrixrep-resentationoftheknotgroup.ExamplesoftwoknotswiththesameAlexandermodulebutdifferenttwistedAlexanderpolynomialsaregiven.

  • 标签: TWISTED ALEXANDER POLYNOMIAL Representation space KNOT
  • 简介:Theauthorstudiesthestabilizationfortheunitarygroupsoverpolynomialringsandobtainsforthernsomeresultsanalogonstotheresultsoflineargroupsandsymplecticgroups,ItisespeciallyprovedthatK1U(A)=K1U(R)whereA=R[X1,…Xm],RisaringofalgebraicintegersinaquadraticfieldQ(√d).

  • 标签: 稳定定理 酉群 多项式环 最大理想
  • 简介:ItisprovedthatforacomplexminimalsmoothprojectivesurfaceSofgeneraltype.itsabelianautomorphismgroupisoforder≤36K2S+24,providedX(Os)≥8,whereKsisthecanonicaldivlsorofS,andX(Os)theEulercharacteristicofthestructuresheafofS.

  • 标签: 交换群论 阿贝尔群论 证明方法 高等数学