Mathematical Sciences Classification System
34Axx - General theory
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34A05Explicit solutions and reductions
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34A07Fuzzy differential equations
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34A08Fractional differential equations
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34A09Implicit equations, differential-algebraic equations [See also 65L80]
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34A12Initial value problems, existence, uniqueness, continuous dependence and continuation of solutions
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34A25Analytical theory: series, transformations, transforms, operational calculus, etc. [See also 44-XX]
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34A26Geometric methods in differential equations
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34A30Linear equations and systems, general
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34A33Lattice differential equations
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34A34Nonlinear equations and systems, general
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34A35Differential equations of infinite order
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34A36Discontinuous equations
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34A37Differential equations with impulses
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34A38Hybrid systems
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34A40Differential inequalities [See also 26D20]
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34A45Theoretical approximation of solutions {For numerical analysis, see 65Lxx}
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34A55Inverse problems
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34A60
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34A99None of the above, but in this section