000 02729cam a2200337 a 4500
003 EG-GiCUC
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008 171211s2016 ua d f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.12.17.M.Sc.2016.Mo.T
100 0 _aMohammed Hussein Hasan Alashwal
245 1 0 _aTheory of power quantum difference equations /
_cMohammed Hussein Hasan Alashwal ; Supervised Alaa E. Hamza , Samir A. Ashour
246 1 5 _aنظرية المعادلات الفروقية للقوى الكمية
260 _aCairo :
_bMohammed Hussein Hasan Alashwal ,
_c2016
300 _a85 P. :
_bcharts ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Mathematics
520 _a This thesis introduces the theory of linear power quantum difference equations associated with the power quantum difference operator. We define the power quantum exponential and trigonometric (hyperbolic) functions and give some of their properties. We prove that they are solutions of difference equations of first and second order respectively. Next, we apply the method of successive approximations to obtain the existence and uniqueness of solutions of linear difference equations in Banach spaces in both local and global cases. Then, we study the theory of linear power quantum difference equations. We introduce the power quantum Wronskian and prove its properties. We show that it is an effective tool to determine whether set of solutions is a fundamental set or not. Hence, we obtain Liouville{u2019}s formula for power quantum difference equations. Also, we derive the solution of the first order linear power quantum difference equation with non-constant coefficients. We derive solutions of Euler-Cauchy difference equations as special cases of second order linear difference equations. Thereafter, we are concerned with constructing a fundamental set of solutions of homogeneous power quantum linear difference equations when the coefficients are constant. Finally, we establish many Pachpatte{u2019}s inequalities based on the power quantum difference operator and as special cases we obtain Gronwall{u2019}s and Bernoulli{u2019}s inequalities associated with this operator
530 _aIssued also as CD
653 4 _aExistence and uniqueness of solutions
653 4 _aPower quantum difference operator
653 4 _aTheory of power quantum difference equations
700 0 _aAlaa E. Hamza ,
_eSupervisor
700 0 _aSamir A. Ashour ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c63962
_d63962