## Mathematics Subject Classification – MSC2020

History of ordinary differential equations [Consider also classification numbers from Section 01-XX]
354

Theoretical approximation of solutions to ordinary differential equations {For numerical analysis, see 65Lxx}
4273

Boundary value problems for ordinary differential equations {For ordinary differential operators, see 34Lxx}
36818

Dynamic equations on time scales or measure chains {For real analysis on time scales, see 26E70}
2127

Dynamic equations on time scales or measure chains {For real analysis on time scales or measure chains, see 26E70}
2120