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Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences

Abstract

A method based on the Taylor formula for the approximate solution of the Cauchy problem for the ordinary differential equation is studied. The problem of estimating the accuracy of the approximate solution generated by this method is considered, and an estimate of high accuracy is obtained for the difference of the exact and approximate solution. Here, different from the known values, an exact expression for the estimation coefficient is found.

First Page

120

Last Page

131

References

1. Bakhvalov N.S. Numerical Methods. Moscow, Nauka (1973).

2. Berezin B.C., Jidkov N.N. Metodi vichisleniy. T.2. Moskva (1959). (in Russian)

3. Butcher J.C. Numerical Methods for Ordinary Differential Equations. John Wiley Sons, Ltd. - United Kingdom (2016).

4. Krilov V.I., Bobkov V.V. Monastirniy P.I. Vichislitelnie metodi. Tom II. Nauka, Moskva (1977). (in Russian)

5. Hairer E., Norsett S., Wanner G. Solving ordinary differential equations. I. (Nonstil problems). 2nd edition, Springer (2008).

6. Cartan H. Calculus Differential. Formes Differentielles. Hermann Paris (1967).

7. Azamov A.A., Abdullaev A.X., Tilavov A.M. On the derivation of an inequality for estimating the accuracy of an approximate solution to the initial value problem. Bulletin of the Institute of Mathematics, Vol. 5, pp. 105-111 (2022).

8. Abdullaev A.X., Azamov A.A., Ruziboev M.B. An explicit estimate for approximate solutions based on the Taylor formula. Ural mathematical journal. (submitted)

9. Demidovich B.P. Leksii po matimaticheskoy teorii ustoychivosti. Moskva, Nauka (1970). (in Russian)

10. Lambert J.D. Numerical methods for ordinary differential systems. The initial value problems. J.Wiley Sons (1993).

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