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Diff — Ordinary differential equation

Revision #3147 → #4104 · back to history

modifiedGlobal solution39e161c77438
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note`IsIntegralCurve γ v` is precisely an integral curve defined on all of ℝ, matching the notion of a global solution.`IsIntegralCurve γ v` is precisely an integral curve defined on all of ℝ, matching the notion of a global solution. Status upgraded from partial to formalized to align with the exact match_kind.
provenanceaiai-moderated
statuspartialformalized
modifiedFinite duration solution example9656b5998754
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anchor.snippetAdmits the finite duration solutionadmits the finite duration solution
noteThis explicit finite-duration example is not formalized in Mathlib.This explicit finite-duration example is not formalized in Mathlib. Snippet corrected to match article capitalization.
provenanceaiai-moderated
modifiedPicard–Lindelöf theorem350f79d68068
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mathlib.moduleMathlib.Analysis.ODE.PicardLindelofMathlib.Analysis.ODE.ExistUnique
noteThe Picard–Lindelöf (Cauchy–Lipschitz) theorem is proved in `IsPicardLindelof.exists_eq_forall_mem_Icc_hasDerivWithinAt`.The Picard–Lindelöf (Cauchy–Lipschitz) theorem is proved in `IsPicardLindelof.exists_eq_forall_mem_Icc_hasDerivWithinAt` (verified module is `Mathlib.Analysis.ODE.ExistUnique`).
addedGrönwall's inequality (application to ODEs)b718f36986d1
modifiedLocal existence and uniqueness theorem493fce98cda0
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mathlib.moduleMathlib.Analysis.ODE.PicardLindelofMathlib.Analysis.ODE.ExistUnique
noteLocal existence is given by `IsPicardLindelof.exists_eq_forall_mem_Icc_hasDerivWithinAt` and uniqueness by `ODE_solution_unique` in `Mathlib.Analysis.ODE.Gronwall`.Local existence is given by `IsPicardLindelof.exists_eq_forall_mem_Icc_hasDerivWithinAt` and uniqueness by `ODE_solution_unique`, both in `Mathlib.Analysis.ODE.ExistUnique`.
modifiedGlobal uniqueness and maximum domainb153af2abce8
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mathlib.moduleMathlib.Analysis.ODE.GronwallMathlib.Analysis.ODE.ExistUnique
noteGlobal uniqueness for Lipschitz vector fields is given by `ODE_solution_unique_univ`, but the existence of a maximal interval of definition is not formalized.Global uniqueness for Lipschitz vector fields is given by `ODE_solution_unique_univ` (verified module is `Mathlib.Analysis.ODE.ExistUnique`), but the existence of a maximal interval of definition is not formalized.