简介：本文把点集拓扑学中的C·T·Yang定理推广到模糊拓扑学中，并且获得了一些其它新的结果。

简介：我们学习形式的非线性的堕落椭圆形的问题的解决方案的存在结果，—div(一(x，u，∇u))在Ω的=F，在Ω是ℝN,N≥的一个围住的领域的地方2，一：Ω×ℝ×ℝN→ℝN是Carathéodory功能令人满意自然生长条件和coercivity调节，但是他们验证仅仅大单音的强健。第二条款F属于W−1,p′(Ω,w*)。存在结果被使用L1-version证明薄荷的词根。

简介：ThisvolumeisdedicatedtoProfessorXiaqiDing,anacademicianoftheChineseAcademyofSciences,ontheoccasionofhiseightiethbirthday.ProfessorXiaqiDingwasbornonMay25,1928,inTaoJiangcounty,Hunanprovince.Hewasgraduatedin1951fromtheDepartmentofMathematics,WuhanUniversity.Becauseofhisoutstandingacademicperformance,hewasselectedrightaftercollegeforhisstudyandresearchat

简介：Inthispaper,thesemi-symmetricrecurrent-metricS-concircularconnec-tiononaRiernannianmanifoldaredefined.Somepropertiesofsemi-symmetricrecurrent-metricS-concircularconnectionshavebeenobtained.

简介：InJulyof1987,theSamplingSurveyofChildren’sSituationwasconductedin9provincesautonomousregionsofChina.Astratifiedtwo--stageclustersamplingplanwasdesignedforthesurvey.Thepaperpresentsthemethodsofstratification,selectingn=2PSU’s(cities/counties)withunequalprobabilitieswithoutreplacementineachstratumandselectingresidents/villagecommitteeineachsampledcity/county.Allformulaeofestimatingpopulationcharacteristics(especiallypopulationtotalsandtheratiosoftwototals),andestimatingvariancesofthoseestimatorsaregiven.Finally,weanalysetheprecisionofthesurveypreliminarilyfromtheresultofdataprocessing.

简介：ThemainaimofthispaperistoprovideconvergenceanalysisofQuasi-WilsonnonconformingfiniteelementtoMaxwell'sequationsunderarbitraryquadrilateralmeshes.Theerrorestimatesarederived,whicharethesameasthoseforconformingelementsunderconventionalregularmeshes.

简介：ThispaperpresentsapropersplittingiterativemethodforcomparingthegeneralrestrictedlineareuqationsAx=b,x∈T（where,b∈AT,andTisanarbitrarybutfixedsubspaceofCm）andthegeneralizedinAT,SForthespecialcasewhenb∈ATanddim（T）=dim（AT）,thissplittingiterativemethverseAT,ShodconvergestoAT,Sb（theuniquesolutionofthegeneralrestrictedsystemAx=bx∈T）.

简介：Inthispaper,weusethedeformationmethodandG-equivarianttheorytoprovetheexistenceandmultiplicityofharmonicmapsfromanannulustotheunitsphereinR~3withsymmetricboundaryvalue.Inparticular,wecangetinfinitelymanyhomotopicallydifferentharmonicmapsiftheboundaryvalueisS~1-equivariantandnonconstant.

简介：Inthispaper,anewclassofsolutionsofthevacuumEinstein'sfieldequationswithcosmologicalconstantisobtained.Thisclassofsolutionspossessesthenakedphysicalsingularity.ThenormoftheRiemanncurvaturetensorofthisclassofsolutionstakesinfinityatsomepointsandthesolutionsdonothaveanyeventhorizonaroundthesingularity.

简介：Inthispaper,theconceptofthes-doublydiagonallydominantmatricesisintroducedandthepropertiesofthesematricesarediscussed.Withthepropertiesofthes-doublydiagonallydominantmatricesandthepropertiesofcomparisonmatrices,someequivalentconditionsforH-matricesarepresented.TheseconditionsgeneralizeandimproveexistingresultsabouttheequivalentconditionsforH-matrices.Applicationsandexamplesusingthesenewequivalentconditionsarealsopresented,andanewinclusionregionofk-multipleeigenvaluesofmatricesisobtained.

简介：ThisarticleobtainsanexplicitexpressionoftheheatkernelsonH-typegroupsandthenfollowtheestimateofheatkernelstodeducetheHardy'suncertaintyprincipleonthenilpotentLiegroups.

简介：Inordertoimprovethecarsalesservice4Sshopmanagementlevel,improvetheeconomicandsocialbenefitsofenterprises,incentivesareusedtoencouragetheirown4sshops.Inthispaper,throughouttherelatedanalysisofthequarterlyandannualawardsincentiveprograminlarge-scaledomesticautomobileenterprises,entropymethodwithMATLABsoftwareisappliedtoestablishthedimensionalfitfunction.Inthedataprocessing,themultiplelinearregressionfunctionintoLingosoftwareisemployedtogetthebestsolution;andClanguageisusedtorunthescreeningdataprogramthroughtheconsistencytestprograminthesensitivityanderroranalysis.Firstofall,considerthecompanytomaximizeprofitsandmaximizetheamountofcomplaintsinthestoretomaintainalowtarget;intermsofstaff,weshouldconsiderprovidingmoreincentivesforemployees;inthecustomer,theoverallsatisfaction,serviceAttitude,vehiclecleanlinessbasedshouldbeimproved.Andtwoprogramsforthemonthlyprofitandexcessprofitsofprogressiveincentivesshouldalsobeimproved.

简介：Itiswellknownthatcertainisotopyclassesofpseudo-AnosovmapsonaRiemannsurfaceSofnon-excludedtypecanbedefinedthroughDehntwistst(α|~)andt(β|~)alongsimpleclosedgeodesies(α|~)and(β|~)on(S|~),respectively.LetGbethecorrespondingFuchsiangroupactingonthehyperbolicplaneHsothatH/G≌(S|~).Foranypointa∈(S|~),defineS=(S|~)\{a}.Inthisarticle,theauthorgivesexplicitparabolicelementsofGfromwhichheconstructspseudo-AnosovclassesonSthatcanbeprojectedtoagivenpseudo-Anosovclasson(S|~)obtainedfromThurston'sconstruction.

简介：ThispaperpresentsthelimitingexpressionforthegencalizedinverseAT.S(2)anditscorresgondingprojectorsSincecomononimnortorsinverses,suchasandAT.S(2)etcareallgeneralizedineeAT.S(2)Infact,wegiveaunifiedlimitingformulaofcomputinesuchimporiantgeneralinedinversesanditscorrespondingproiectors,BasedonthisweestalishandimbedlingmethodfirecompotingthegeneralizedinverseAT.S(2)Theresultsextendearlierworkbyvariousauthors.

简介：X-rayimagingistheconventionalmethodfordiagnosingtheorthopedicconditionofapatient.ComputerizedTomography(CT)scanningisanotherdiagnosticmethodthatprovidespatient’s3Danatomicalinformation.However,bothmethodshavelimitationswhendiagnosingthewholeleg;X-rayimagingdoesnotprovide3Dinformation,andnormalCTscanningcannotbeperformedwithastandingposture.Obtaining3Ddataregardingthewholeleginastandingpostureisclinicallyimportantbecauseitenables3Danalysisintheweightbearingcondition.Basedontheseclinicalneeds,ahardware-basedbi-planeX-rayimagingsystemhasbeendeveloped;itusestwoorthogonalX-rayimages.However,suchmethodshavenotbeenmadeavailableingeneralclinicsbecauseofthehightcost.Therefore,weproposedawidelyadaptivemethodfor2DX-rayimageand3DCTscandata.Bythismethod,itispossibletothreedimensionallyanalyzethewholeleginstandingposture.TheoptimalpositionthatgeneratesthemostsimilarimageisthecapturedX-rayimage.Thealgorithmverifiesthesimilarityusingtheperformanceoftheproposedmethodbysimulation-basedexperiments.Then,weanalyzedtheinternal-externalrotationangleofthefemurusingrealpatientdata.Approximately10.55degreesofinternalrotationswerefoundrelativetothedefinedanterior-posteriordirection.Inthispaper,wepresentausefulregistrationmethodusingtheconventionalX-rayimageand3DCTscandatatoanalyzethewholelegintheweight-bearingcondition.

简介：求出了（n-3）-filiform李代数的极大环面，并证明了（n-3）-filiform李代数是可完备化的．

简介：Asacontinuationof[1],theauthorstudiesthelimitcyclebifurcationaroundthefocusS1otherthanO(0,0)forthesystem(1)asδvaries.Aconjectureonthenon-existenceoflimitcyclesaroundS1,andanotheroneonthenon-coexistenceoflimitcycleswoundbothOandS1aregiven,togetherwithsomenumericalexamples.

简介：ＡＮＨＡＲＭＯＮＩＣＡＮＡＬＹＳＩＳＦＯＲＯＰＥＲＡＴＯＲＳＩＮＴＨＥＣＡＳＥＯＦＡＬＯＣＡＬＬＹＣＯＭＰＡＣＴＡＢＥＬＩＡＮＧＲＯＵＰ：Ｆ．ＡＮＤＭ．ＲＩＥＳＺ　ＴＨＥＯＲＥＭＳＹｕＳｈｕｍｏ（于树模）（Ｄｅｐｔ．ｏｆＭａｔｈ．，ＦｕｄａｎＵｎｉｖ...

简介：

简介：让M是紧缩的orientable无法缩减的3-manifold，和F是在把M切成二manifoldsM1和M2的M的必要连接关上的表面。如果Mi有最小的Heegaard切开Mi=$V_i\cup_{H_i}$V_i\cup_{H_i}有d(H1)的Wi+d(H2)2(g(M1)+g(M2)？g(F))+1，然后g(M)=g(M1)+g(M2)？g(F)。