New Applications of Adomian Decomposition Method. Emad A. Az-Zo'bi
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1 Middle-Eas Joral of Scieific Research (): ISSN 99-9 IDOSI Pblicaios 5 DOI:.589/idosi.mejsr.5... New Applicaios of Adomia Decomposiio Mehod Emad A. Az-Zo'bi Deparme of Mahemaics ad Saisics Mah Uiversiy Mah P.O. Bo: 7 AlKarak - Jorda Absrac: The Adomia decomposiio mehod (ADM) is implemeed for aalyic-meric reame for cerai class of oliear parial differeial sysems called sysem of coservaio laws. We prove he covergece of ADM applied o hese ypes of sysems. The aalysis will be illsraed by ivesigaig several eamples o idicae reliabiliy accracy ad covergece of he mehod. Key words: Hyperbolic sysem of coservaio laws Adomia decomposiio mehod Adomia polyomials Covergece INTRODUCTION deermiisic ad sochasic differeial eqaios [8-7] ad refereces herei. This mehod is well-sied o Noliear copled parial differeial eqaios are physical problems sice i makes he ecessary very impora i a variey of scieific fields. They arise liearizaio perrbaio problem beig solved. i large mber of mahemaical ad egieerig I his sdy he ADM is eeded o problems especially i flid mechaics solid sae aalyic-meric simlaio for sricly hyperbolic sysem physics plasma physics plasma waves capillary-graviy of coservaio laws. The covergece aalysis for he waves ad chemical physics []. The sysem of ADM applied o sch sysems is discssed. coservaio laws is oe of he mos famos eamples of copled oliear parial differeial eqaios whose The Adomia Decomposiio Mehod: To smmarize he form is. basic solio procedre of he ADM. Cosider he oe dimesioal eqaio of coservaio law i operaor U( ) + F' ( U) U( ) = () form. where F (U) is he Jacobia mari of he fl vecor F []. L ( ) + Lf( ( )) = ( ) = () The sysem i Eq.() is sricly hyperbolic if he eigevales of F (U) are posiive ad real which will be where he oaios L ad L symbolize he liear he case sdy i his work. differeial operaors wih respec o ad respecively. May ahors paid aeio o sdy solios of L hyperbolic ellipic ad mied hyperbolic-ellipic ype of Applyig he iverse operaor (). = (). d o Eq.() coservaio laws eqaios. Amog hese aemps are he fiie differece mehod [] he Sic-Galerki yields. mehod [] he redced differeial rasform mehod [5-6] variaioal ieraio mehod [7-9] homoopy ( ) = L ( Lf( ) ). () aalysis mehod [9-] homoopy perrbaio mehod [-] ad he Adomia decomposiio mehod (ADM) The ADM [6-7] assmes ha he solio ( ) [-5]. ca be wrie i erms of a ifiie series of he form. The ADM was irodced by Adomia [6-7]. I ivesigaed o solve effecively ad easily a large class ( ) = ( ) of liear oliear ordiary parial fracioal () Correspodig Ahor: Emad A. Az-Zo'bi Deparme of Mahemaics ad Saisics Mah Uiversiy Mah P.O. Bo: 7 AlKarak - Jorda. 75
2 Middle-Eas J. Sci. Res. (): ad he oliear erm f() ca be represeed by he ifiie series of he form. coverges owards a pariclar solios wiho iiial ad bodary codiios. f = A d k A = f k.! d k = (5) Proof: We verify he codiios H ad H of covergece. Sarig wih H for he operaor L Eq.(7) ca be wrie as. where A =... are he Adomia polyomials which are give by. L ( ) = - f (( )) () (6) The for all v H we have: ( L Lv v) = ( Lf( ) + g+ Lf( v) g v) = L ( f ( ) f ( v) ) v Sbsiig Eqs. (5) ad (6) io Eq.() ad assmig () ( ha ( ) = () oe ca geerae he res of he ) erms of he series solio sig he recrsive relaio: Accordig o Cachy-Schwarz ieqaliy we ge. [ ] = = L L A. + ( ( ) ) ( ) (7) L f f v v L f f v v. () The eac solio ( ) will be. ad sice L is differeial operaor i Hilber space H here is some cosa sch ha. ( ) = lim k ( ). (8) k = L f f v v f f v v. (5) : H wih s dsd < (9) Sbsiig he ieqaliies (7)-(9) io (6) we ( ) [ T ] ca dedce. ad he orm L f f v v L f f v v = ( s ) dsd. ( ) [ T ] ( ( ) ) Covergece Aalysis: I his secio we discss he B f saisfies Lipchiz codiio wih Lipchiz covergece aalysis [8] of he ADM for he cosa L (say) he we ge. coservaio laws i Eq. (7). Le s cosider he Hilber space H = L (( ) [ T]) defied by. f f v L v (6) () The ADM is covergece if he followig wo hypoheses are saisfied: Theorem.: If f() is Lipschizia fcio i Hilber space H he ADM applied o he sysem ( ( ) ) ( ) f ( ) f ( v) v L v = C v So hypohesis H is valid. Now we verify he covergece hypohesis H for he operaor L which is H: ( L Lv v) C v C > v H for every K > here is a cosa C (K) > sch ha for v H wih K v K we have (L - Lvw) C (K) H: Whaever maybe K > C ( K ) > sch ha for v - v w for every w H. To do ha sig he mea- H wih v K we have ( L Lvw ) C ( K ) v w for vale heorem ad Cachy-Schwarz ieqaliy as every w H. meioed above we have. ( ( ) ) = f w f ( K) w L f f v w f f v w L + Lf () =. () (7). 76
3 ( ) = ( ) C ( K) w L Lv v L f f v w Eample.: Firs we es he iiial bodary vale problem ( sysem wih fl f ( ) = ) Middle-Eas J. Sci. Res. (): for some cosa ad v < < (i he sese of orm) Sbsiig he decomposiio series () for ( ) wih v K. Leig C (K) = f (K) we ge. io Eq.() irodces he recrsive relaio. wih C (K) = f (K) H is hold. The proof is complee. (8) Illsraed Eamples: I his secio he ADM has bee sccessflly sed o sdy hree models of hyperbolic sysem of coservaio laws. Choosig eamples wih kow solios allows for a more complee error aalysis as show i he firs wo eamples. For prposes of illsraio he comper applicaio program Mahemaica is sed. + = > > (9) ( ) = + = A d. () I view of Eq.() we obai. 5 6 = = 8 5 = 6 5 = = 5 6 = Sbjec o he codiios. = > = >. The eac solio is give by. 5 ( ) = = + + () Applyig he operaor L defied i secio o Eq.(9) gives. ( ) = f ( ) d where he fcio f ( ) = = A = = + = = A A A () () A s are he Adomia polyomials which ca derived sig formla (6). The few erms of A s are. A () k k = The series solio ( ) = lim ( ) ca be easily obaied ad coicide wih he eac solio (). Eample.: Cosider he oliear iiial vale sysem i () wih fles F( U) = v v Sbjec o iiial codiios. T = e v = e. The sysem is sricly hyperbolic wih eigevales. = ±. v f v A v = = ( ) ad g( ) = = B ( ). J-S. Da [9- (5) (6) - - The eac solio for his problem is U( ) = (e e T ). I his eample he oliear operaors are ] proposed a simple recrrece echiqe of calclaig Adomia polyomials for sigle ad mlivariable oliear operaors. The firs few Adomia polyomials for f are give by. 77
4 Middle-Eas J. Sci. Res. (): = = A f v v = = A v f v vv A= vf ( v) + vf ( v) = vv + vv! A vf ( v ) vvf ( v ) vf! ( v ) vv vvv vv = + + = + ad i he same way for B s. Followig same procedre i Eample we formlae he recrsive relaios as. ( ) = ( ) = e A d + ( ) = ( ) = + v e v B d = e = e! ( ) = e! ( ) = e! v = e v = e! v ( ) = e! v ( ) = e! T U( ) = e + + e !!!!!! = ( + ) F U v v. T (7) We fid he firs few ieraes of he recrsive scheme (7) o be. ad Ths he series solio is. As we ge he eac solio. Eample.: The sysem i () wih fles. (8) is sricly hyperbolic wih eigevales. = ± + v. I a operaor form L + L + vlv = L + Lv + vl = sbjec o iiial codiios =.5cos v =.5si. Operaig L (). = (). d o boh sides of (9) gives. = A + B v d v = v C v + Dv d A = A B = B Cv = C Dv = D. The firs few compoes of he Adomia polyomials of A ad C are give by. A = A= + () A= + + A = C= v C= v + v C= v + v + v C = v + v + v + v ad i he same way for B ad C. Also he kow fcios ( ) ad v ( ) ca be epressed by a ifiie series of he form. (9) () () where he fcios A() = B(v) = vv C( v) = v ad D( v) = v are relaed o he oliear erms ad ca be epressed i erms of Adomia polyomials as followig. () () 78
5 Middle-Eas J. Sci. Res. (): ad v ( ) = si = ( ) v si cos 6 = ( ) v si si 5cos 8 v ( ) = cos cos si si + si. 9 Fig. : The behavior of fcio () verss for. I his eample oly si compoes of he decomposiio series were obaied. We obaied he approimae solios = ( ) = ( ) + ( ) + + ( ). v v v v 6 The mai goal of his work is o fid a approimae solio for he oliear sricly hyperbolic sysem of coservaio laws sig he Adomia decomposiio mehod. A proof of covergece for sch sysems is preseed. The Adomia decomposiio mehod provides he solio i sccessive compoes ha will be added o ge he series solio; i appears o be very promisig Fig. : The behavior of fcio () verss for wih greaer sabiliy for solvig oliear sysems.. REFERENCES ( ) = ( ) The behaviors of he solios obaied by he ADM for differe vales of are show i Figs. ad respecively. CONCLUSION. Ablowiz M.J. ad P.A. Clarkso 99. Noliear (5) Evolio Eqaios ad Iverse Scaerig Cambridge Uiv. Press. v( ) = v ( ).. Az-Zo bi E.A. ad K. Al-Khaled. A New Covergece Proof of The Adomia Decomposiio The firs few erms of he decomposiio series (5) are Mehod for a Mied Hyperbolic Ellipic Sysem of Coservaio Laws Applied Mahemaics ad ( ) = cos Compaio 7: Sod G.A A Srvey of Several Fiie Differece ( ) = Mehods for Sysems of Noliear Hyperbolic ( ) = cos ( cos 5si ) Coservaio Laws J. Comp. Phys. 7: Alqra M.T. ad K.M. Al-Khaled. Nmerical Compariso of Mehods for Solvig Sysems of ( ) = cossi( cos si ) 8 Coservaio Laws of Mied Type I. J. Mah. Aal. 5:
6 Middle-Eas J. Sci. Res. (): Az-Zo'bi E.A. ad K. Al-Dawod. 9. Shawagfeh N. ad D. Kaya. Comparig Semi-Aalyic Solios o Riema Problem for Nmerical Mehods for The Solios of Sysems of Oe-Dimesioal Gas Dyamics Scieific Research Ordiary Differeial Eqaios Appl. Mahe. Le. ad Essays 9: : Az-Zo'bi E.A.. O he Redced Differeial. Al-Khaled K. ad F. Alla 5. Cosrcio of Trasform Mehod ad is Applicaio o he Solio for The Shallow Waer Eqaios by The Geeralized Brgers-Hley Eqaio Applied Decomposiio Mehod Mah. Comp. Siml Mahemaical Scieces 8(77): : Rafari B. ad A. Yildirim. Aalyical Solio. Jafari H. ad V. Gejji 6. Revised Adomia of Secod-Order Hyperbolic Telegraph Eqaio by Decomposiio Mehod for Solvig Sysem of Variaioal Ieraio ad Homoopy Perrbaio No-Liear Eqaios. Appl. Mah. Comp. Mehods Resls Mah. 6: : Abdo M.A. ad A.A. Solima 5. New. Alla F.M. ad K. Al-Khaled 6. A Applicaios of Variaioal Ieraio Mehod.Phys. Approimaio of The Aalyic Solio of The D: Noliear Pheomea : -8. Shock Wave Eqaio. J. Comp. Appl. Mah. 9. Khaami I. N. Tolo J. Mahmodi ad M. Rezvai 9: Applicaio of Homoopy Aalysis Mehod. Solima A. ad M.A. Abdo 8. The ad Variaioal Ieraio Mehod for Shock Wave Decomposiio Mehod for Solvig The Copled Eqaio J. Applied Sci. 8: Modified KdV Eqaios.Mah. Comp. Model.. Hosseii M.M. S.T. Mohyd-Di S.M.Hosseii ad 7: 5-. M. Heydari. Sdy o Hyperbolic Telegraph. Siddiqi M. M. Hameed B.M. Siddiqi ad Eqaios by Usig Homoopy Aalysis Mehod Q.K. Ghori.Use of Adomia Decomposiio Sd. Noliear Sci. : Mehod i The Sdy of Parallel Plae Flow of a. Berberler M.E. ad A. Yildirim 9. He's Homoopy Third Grade Flid Comm. Noli. Sci. Nm. Sim. Perrbaio Mehod for Solvig he Shock Wave 5(9): Eqaio Applicable Aal. 88: Dhaigde D.B. G.A. Birajdarad ad V.R. Nikam. Mohyd-Di S.T. A. Yildirim ad G. Demirli.. Adomia Decomposiio Mehod for Fracioal Travelig Wave Solios of Whiham-Broer-Kap Bejami-Boa-Mahoy-Brger s Eqaios.I. J. Eqaios by Homoopy Perrbaio Mehod J. Appl. Mah. Mech. 8(): -5. Kig Sad Uiv. Sci. : Dhaigde D.B. ad V.R. Nikam.. Safari M.. Aalyical Solio of Two Eeded Solio of Fracioal Parial Differeial Eqaios Model Eqaios for Shallow Waer Waves by Usig Ieraive Mehod Frac. Cal. Appl. Aal. Adomia s Decomposiio Mehod Adv. Pre. 5(): Mah. : Dhaigde D.B. ad G.A. Birajdar. Nmerical. Az-Zo bi E.A.. Cosrcio of Solios Solio of Fracioal Parial Differeial Eqaios for Mied Hyperbolic Ellipic Riema Iiial by Discree Adomia Decomposiio Mehod Adv. Vale Sysem of Coservaio Laws. Applied Appl. Mah. Mech. 6(): 7-9. Mahemaical Modellig 7: Al-Khaled K. S. Momai ad A. Alaweh Az-Zo bi E.A.. A Approimae Aalyic Approimae Wave Solios for Geeralized Solio for Iseropic Flow by a Iviscid Gas Bejami-Boa-Mahoy-Brgers Eqaios Appl. Model.Archives of Mechaics 66(): -. Mah. Comp. 7(): Adomia G A Review of The Decomposiio 9. Da J.S.. Recrrece Triagle for Adomia Mehod i Applied Mahemaics J. Mah. Aal. Polyomials Appl. Mah. Comp. 6: 5-. Appl. 5: Da J.S.. A Efficie Algorihm for The 7. Adomia G. 99. Solvig Froier Problems of Mlivariable Adomia Polyomials Appl. Mah. Physics: The Decomposiio Mehod Klwer Comp. 7: Academic Pblishers Boso U.S.A. 8. Wazwaz A.M.. The Decomposiio Mehod Applied o Sysems of Parial Differeial Eqaios ad o The Reacio-Diffsio Brsselaor Model Appl. Mah. Comp. (-):
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