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20183a¬ÆØ©üa‘kšÛÜ*Ñ‘«+.1Å)Šö6¶“r•“4?JÇƉ;’A^êÆïÄ••‡©•§†ÄåXÚüêƉÆÆÆSc•2015c9–2018c6˜lc8 ìÜŒÆ20183a¬ÆØ©üa‘kšÛÜ*Ñ‘«+.1Å)Šö6¶“r•“4?JÇƉ;’A^êÆïÄ••‡©•§†ÄåXÚüêƉÆÆÆSc•2015c9–2018c6"˜lc8 ThesisforMaster'sdegree,ShanxiUniversity,2018TravelingWavesforTwoTypesofPopulationModelswithNonlocalDiusionStudentNameZhimeiWangSupervisorProf.GuirongLiuMajorAppliedMathematicsFieldofResearchDierentialEquationsandDynamicalSystemsDepartmentSchoolofMathematicalSciencesResearchDuration2015.09-2018.06June,2018 8¹¥©Á‡...............................................................................iAbstract...............................................................................i1˜ÙXØ...........................................................................11Ù‘kšÛÜ*Ñ‘Úž¢«+.Åc)..............................32.1Úó...........................................................................32.2Åc)•35..............................................................42.3Åc)ìC5.............................................................112.4Åc)Ø•35...........................................................192.5ž¢Ú=zÇé•1Å„ÝK•.......................................191nÙ‘kšÛÜ*Ñ‘Úž˜¢ D/¾.1Å)......................213.1Úó..........................................................................213.21Å)•35.............................................................22o(†Ð"...........................................................................32ë•©z.............................................................................33ïĤJ.............................................................................36—..................................................................................37‡<{¹9éX•ª.................................................................38«ìÖ................................................................................39ÆØ©¦^Ç(²...............................................................40i ContentsAbstractinChinese..................................................................iAbstract...............................................................................iChapter1Preface...................................................................1Chapter2Travelingwavefrontforapopulationmodelwithdelayandnonlocaldiusion...............................................................................32.1Introduction...................................................................32.2Existenceoftravelingwavefront...............................................42.3Asymptoticbehavioroftravelingwavefront...................................112.4Nonexistenceoftravelingwavefront..........................................192.5Theeectsofdelayandtransferratesonminimumtravelingwavespeed......20Chapter3Travelingwaveforaninfectiousdiseasemodelwithspatio-temporaldelayandnonlocaldiusion.......................................................213.1Introduction..................................................................213.2Existenceoftravelingwaves..................................................22Thesummaryandoutlook........................................................32References...........................................................................33Researchachievement..............................................................36Acknowledgements..................................................................37Personalproles.....................................................................38Letterofcommitment..............................................................39Authorizationstatement...........................................................40iii ¥©Á‡¥©Á‡©ïÄüa‘kšÛÜ*Ñ‘«+.1Å).1˜Ù,0‡A*Ñ•§ïĵ9®²¤J,•[ãISuÐı9©Ì‡óŠ.1Ù,ïĹkšÛÜ*Ñ‘Úž¢«+.8>>@tu(x;t)=D[Ju(x;t) u(x;t)]+f(u(x;t);u(x;t 1))<