简介:在这篇论文,我们为多项式建立L~q不平等,它特别地产出一些Zygmund类型不平等的有趣的归纳。
简介:BymeansoftheHermitianmetricandChernconnection,Qiu[4]obtainedtheKoppelman-Leray-Norguetformulafor(p,q)differentialformsonanopensetwithC~1piecewisesmoothboundaryonaSteinmanifold,andundersuitableconditionsgavethesolutionsof■-equationonaSteinmanifold.Inthisarticle,usingthemethodofRangeandSiu[5],undersuitableconditions,theauthorscomplicatedlycalculatetogivetheuniformestimatesofsolutionsof■-equationfor(p,q)differentialformsonaSteinmanifold.
简介:Itiswellknownthatwhentherandomerrorsareiid.withfinitevariance,theweekandthestrongconsistencyofLSestimateofmultipleregressioncoefficientsareequivalent.Thisnote,byconstructingacounter-example,showsthatthisequivalencenolongerholdstrueincasethattherandomerrorspossessonlyther-thmomentwith1≤r<2.
简介:Inthispaper,wepresentsomeiterativemethodsforsolvinglthorderautoregressivemodels,proveglobalconvergenceforl=1case,andthenumericalresultsofnewalgorithmsseemtobemoreefficientthantheonesofCochrane-Orcuttiterativemethod.
简介:Inthisnote,weobtainanasymptoticestimateforthetimederivativeoftheΦ-entropyintermsofthelowerboundoftheBakry–EmeryΓ2curvature.InthecasesofhyperbolicspaceandtheHeisenberggroup(moregenerally,thenilpotentLiegroupofranktwo),weshowthatthetimederivativeoftheΦ-entropyisnon-increasingandconcaveintimet,alsowegetasharpasymptoticboundforthetimederivativeoftheentropyinthesecases.
简介:InthispaperweintroducetwokindsofparallelSchwarzdomaindecompositionmethodsforgeneral,selfadjoint,secondorderparabolicequationsandstudythedependenceoftheirconvergenceratesonparametersoftime-stepandspace-mesh.Weprovethatthe,approximatesolutionhasconvergenceindependentofiterationtimesateachtime-level.AndtheL~2errorestimatesaregiven.