简介:ThepresentpaperinvestigatesthefractalstructureoffractionalintegralsofWeierstrassfunctions.Theexactboxdimensionforsuchfunctionsmanyimportantcasesisestablished.Weneedtopointoutthat,althoughtheresultitselfachievedinthepresentpaperisinteresting,thenewtechniqueandmethodshouldbeemphasized.ThesenovelideasmightbeusefultoestablishtheboxdimensionorHausdorffdimension(especiallyforthelowerbounds)formoregeneralgroupsoffunctions.
简介:Foraclassofmixedinitial-boundaryvalueproblemforgeneralquasilinearhyperbolicsystems,thispaperestablishesthelocalexactboundarycontrollabilitywithboundarycontrolsonlyactingononeend.Asanapplication,theauthorsshowthelocalexactboundarycontrollabilityforakindofnonlinearvibratingstringproblem.
简介:Byasingthenonclassicalmethodofsymmetryreductions,theexactsolutionsforgeneralvariable-coefficientKdVequationwithdissipativelossandnonuniformitytermsareobtained.Whenthedissipativelossandnonuniformitytermsdon'texist,themultisolitonsolutionsarefoundandthecorrespondingPainleveIItypeequationforthevariable-coefficientKdVequationisgiven.
简介:ThispapersummarizedrecentachievementsobtainedbytheauthorsabouttheboxdimensionsoftheBesicovitchfunctionsgivenbyB(t):=∞∑k=1λs-2ksin(λkt),where1<s<2,λk>0tendstoinfinityask→∞andλksatisfiesλk+1/λk≥λ>1.Theresultsshowthatlimk→∞logλk+1/logλk=1isanecessaryandsufficientconditionforGraph(B(t))tohavesameupperandlowerboxdimensions.ForthefractionalRiemann-LiouvilledifferentialoperatorDuandthefractionalintegraloperatorD-v,theresultsshowthatifλissufficientlylarge,thenanecessaryandsufficientconditionforboxdimensionofGraph(D-v(B)),0<v<s-1,tobes-vandboxdimensionofGraph(Du(B)),0<u<2-s,tobes+uisalsolimk→∞logλk+1/logλk=1.
简介:Theexactparametricrepresentationsofthetravelingwavesolutionsforanonlinearelasticrodequationareconsidered.Byusingthemethodofplanardynamicalsystems,indifferentparameterregions,thephaseportraitsofthecorrespondingtravelingwavesystemaregiven.Exactexplicitkinkwavesolutions,periodicwavesolutionsandsomeunboundedwavesolutionsareobtained.
简介:在这篇文章,作者由夸张正切功能扩大方法,夸张正割扩大方法,和Jacobi椭圆形的功能与量修正为血浆学习修改Zakharov方程的准确旅行波浪答案扩大方法。他们包括三角法的函数解决方案,合理函数解决方案,和更多获得更多的准确旅行波浪解决方案通常独居的波浪,它被称为古典明亮的soliton,塑造W的soliton,和塑造M的soliton。
简介:这份报纸使描述有弹性的字符串的一个3-dimensional网络的颤动的非线性的波浪方程的一个系统担心。作者导出方程和适当节的条件,决定平衡解决方案,并且,由使用quasilinear的方法夸张系统,证明那因为树联网天赋起始,边界值问题有古典解决方案在拉长的平衡解决方案的邻居存在。然后,这的本地可控制性近联网在某个指定时间间隔的配置被证明的如此的平衡。最后,它被证明那,给二不同平衡状态令人满意某些条件,在足够地大的时间间隔上在第二平衡的一位合适的邻居在一平衡的一位足够小的邻居从状态控制网络到任何状态是可能的。
简介:Inthisarticle,byusingtheoryoflinearevolutionsystemandSchauderfixedpointtheorem,weestablishasufficientresultofexactnullcontrollabilityforanonautonomousfunctionalevolutionsystemwithnonlocalconditions.Inparticular,thecompactnesscondi-tionorLipschitzconditionforthefunctionginthenonlocalconditionsappearinginvariousliteraturesisnotrequiredhere.Anexampleisalsoprovidedtoshowanapplicationoftheobtainedresult.
简介:Forfirst-orderquasilinearhyperbolicsystemswithzeroeigenvalues,theauthorestablishesthelocalexactcontrollabilityinashortertime-periodbymeansofinternalcontrolsactingonsuitabledomains.Inparticular,undercertainspecialbutreasonablehypotheses,thelocalexactcontrollabilitycanberealizedonlybyinternalcontrols,andthecontroltimecanbearbitrarilysmall.
简介:Bythemethodofdynamicalsystem,weconstructtheexacttravellingwavesolutionsofanewHamiltonianamplitudeequationandtheOstrovskyequation.Basedonthismethod,thenewexacttravellingwavesolutionsofthenewHamiltonianamplitudeequationandtheOstrovskyequation,suchassolitarywavesolutions,kinkandanti-kinkwavesolutionsandperiodictravellingwavesolutions,areobtained,respectively.