简介：常规图X被称为半对称如果它边及物然而并非顶点及物。为G≤AutX，我们叫G封面X半对称如果X是半对称，并且把G封面称为X一个常规如果AutX对它的弧集合定期起作用。在这篇论文，我们为存在给足够、必要的条件一个常规或半对称的ZK3,3的n-covers。另外，半的一个无限的家庭对称的Zn×ZK3,3的n-covers被构造。

简介：旗传递t-设计的分类是代数组合学的一个重要课题．本文主要讨论了旗传递5-（v，k，3）设计．由P．J．Cameron和C．E．Praeger的结论可知，此时设计的自同构群是3-齐次群．本文利用3-齐次群的分类，证明了设计的自同构群不能是仿射型群．

简介：AgraphGiscalledchromatic-choosableifitschoicenumberisequaltoitschromaticnumber,namelych(G)=χ(G).Ohba’sconjecturestatesthateverygraphGwith2χ(G)+1orfewerverticesischromaticchoosable.ItisclearthatOhba’sconjectureistrueifandonlyifitistrueforcompletemultipartitegraphs.Recently,Kostochka,StiebitzandWoodallshowedthatOhba’sconjectureholdsforcompletemultipartitegraphswithpartitesizeatmostfive.Butthecompletemultipartitegraphswithnorestrictionontheirpartitesize,forwhichOhba’sconjecturehasbeenverifiedarenothingmorethanthegraphsKt+3,2*(k-t-1),1*tbyEnotomoetal.,andKt+2,3,2*(k-t-2),1*tfort≤4byShenetal..Inthispaper,usingtheconceptoff-choosable(orL0-size-choosable)ofgraphs,weshowthatOhba’sconjectureisalsotrueforthegraphsKt+2,3,2*(k-t-2),1*twhent≥5.Thus,Ohba’sconjectureistrueforgraphsKt+2,3,2*(k-t-2),1*tforallintegerst≥1.

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简介：Inordertodeepentheunderstandingoftherelationshipbetweenfundamentalproperties（including:microstructureandcomposition）andphotocatalyticperformance,fourbismuthatecompounds,including:LiBiO3,NaBiO3,KBiO3,andAgBiO3,areregardedasresearchexamplesinthepresentwork,becausetheyhaveparticularcrystalstructuresandsimilarcompositions.Usingdensityfunctionaltheorycalculations,theirstructural,electronic,andopticalpropertiesareinvestigatedandcomparedsystematically.Firstofall,thecalculatedresultsofcrystalstructuresandopticalpropertiesareinagreementwithavailablepublishedexperimentaldata.Basedonthecalculatedresults,itisfoundthatthetunneledorlayeredmicro-structuralpropertiesleadtothestrongerinteractionbetweenbismuthandoxygen,andtheweakerinteractionbetweenalkaline-earthmetaland[BiO6]octahedron,resultinginthefeatureofmulti-bandgapsinthecasesofLiBiO3,NaBiO3,andKBiO3.ThisconclusionissupportedbythecaseofAgBiO3,inwhichthefeatureofmulti-bandgapsdisappears,duetothestrongerinteractionbetweenthenoblemetaland[BiO6]octahedron.Thesepropertieshavesignificantadvantagesinthephotocatalyticperformance:absorbinglowenergyphotons,rapidlytransferringenergycarriers.Furthermore,thefeaturesofelectronicstructuresofbismuthatecompoundsarewellreflectedbytheabsorptionspectra,whichcouldbeconfirmedbyexperimentalmeasurementsinpractice.Combinedwiththecalculatedresults,itcouldbeconsideredthatthecrystalstructuresandcompositionsofthephotocatalystdeterminetheelectronicstructuresandopticalproperties,andsubsequentlydeterminethecorrespondingphotocatalyticperformance.Thus,anovelBi-basedphotocatalystdrivenbyvisible-lightcouldbedesignedbyutilizingspecificcompositionstoformfavorableelectronicstructuresorspecificmicro-structurestoformabeneficialchannelforenergycarriers.

简介：设G是一个简单图，GiG，G1在G中的度定义为d（Gt）=∑v∈v（c）d（v），其中d（v）为v在G中的度数。本文的主要结果是：设G是n≥2阶几乎无桥的简单连通K3-free图，且G≌k1,n-1、Q1和Q2，若对G中任何同构于四个顶点路的导出子图I有d（I）≥n＋2，则G有一个D-闭迹，从而G的线图L（G）是哈密顿图。

简介：BecauseERstressisoneofthesignalingpathwaysinvolvedintheregulationofautophagy,wehypothesizedthatERstressmightalsoplayanimportantroleinradiation-inducedautophagy.SHG44andHeLacellswereirradiatedwithX-raysandcarbonionsof30and75keV/mat2Gy.TheexpressionlevelsofBip,amajorindicatorofUPR,at4and24hpost-irradiationareshowninFig.1(a)and(b)forSHG44andHeLacells,respectively.

简介：定义了毕竟PI-强rpp半群,并刻划了这类半群的结构.

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简介：本文要证明不存在一个非平凡2-（v，k，3）对称设计，它的旗传递自同构群的基柱是^2F4（q2）

简介：ThecomplexK3H4GeW9V3O40·8H2OcrystallizedinamonocliiniesystemwithspacegroupP2,Mr=2784.67,a=11.099（3）,b=16.452（4）,c=13.534（4）,β=108.14°,Z=2,V=2348.493,F（000）:2456,μ=239.7cm-1,De=3.932g/cm3.ThefinalR=0.083for4528non-zeroreflexions.ThestructureofanionsGeW9V3O40andGeW9O34belongstoA--type.

简介：Ｋ１，ｋ┐ＦＡＣＴＯＲＩＺＡＴＩＯＮＯＦＢＩＰＡＲＴＩＴＥＧＲＡＰＨＳＤＵＢＥＩＬＩＡＮＧＡｂｓｔｒａｃｔ．Ｉｎｔｈｉｓｐａｐｅｒ，ａｎｅｃｅｓｓａｒｙｃｏｎｄｉｔｉｏｎｆｏｒａｂｉｐａｒｔｉｔｅｇｒａｐｈλＫｍ，ｎｔｏｂｅＫ１，ｋ－ｆａｃｔｏｒｉｚ...

简介：SupposethatCisthecomplexplaneandkisanon-negativeinteger.DefinefunctionsNk-(x)=|x|kifkisevenandNk(x)=x|x|k-1ifkisodd.SomeapproximationpropertiesofNk-(x)’sisdiscussedandanewexampleofaTchebycheffsystemisgivenout.

简介：Let'stakeHasaninfinite–dimensionalHilbertspaceandK(H)bethesetofallcompactoperatorsonH.UsingSpectraltheoremforcompactself–adjointoperators,weprovetheHyers–UlamstabilityofJensen*-derivationsfromK(H)intoK(H).

简介：作者首先给定义微弱地堕落(K1，K2)用外面的力量和外面的微分形式的技术的-quasiregular地图砰，然后，用McShane扩展的方法，有用不平等被获得，它能被用来导出自我改进的整齐。

简介：<正>Byusingφ-mappingmethod,wediscussthetopologicalstructureoftheself-dualitysolutioninJackiw-Pimodelintermsofgaugepotentialdecomposition.WesetuprelationshipbetweenChern-Simonsvortexsolutionandtopologicalnumber,whichisdeterminedbyHopfindexandBrouwerdegree.Wealsogivethequantizationoffluxinthisease.Then,westudytheangularmomentumofthevortex,whichcanbeexpressedintermsof,theflux.

简介：<正>InthispaperwedisscustherelativeindexfortheAtiyah-Patodi-Singertypeellipticboundaryvalueproblems,asanapplicationwegiveanewapproachtothepairingbetweentherelativeK-homologyandK-cohomology.

简介：引入了Banach空间的局部k-drop凸性质，研究了k-drop凸与局部k-drop凸的一些性质以及两者之间的关系，并用单位球的切片统一而简洁地处理了这两个性质．