# \#bvp

**URL:** https://discourse.julialang.org/tag/bvp/1108.md

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## [Interpolating solution to constrained BVP](https://discourse.julialang.org/t/interpolating-solution-to-constrained-bvp/137989)

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**Author:** [@kar15](https://discourse.julialang.org/u/kar15)\
**Replies:** 3\
**Last updated:** [July 9, 2026, 7:41am UTC](https://discourse.julialang.org/t/interpolating-solution-to-constrained-bvp/137989 "2026-07-09T07:41:02Z")

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Hi all! When trying to find interpolated values of a solution to a constrained BVP using SciMLs collocation method, I get an error. Here is a MWE: using BoundaryValueDiffEq, OptimizationIpopt function f!(du, u, p, t) …

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## [Singular BVP with integrable boundaries](https://discourse.julialang.org/t/singular-bvp-with-integrable-boundaries/135224)

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**Author:** [@NoFishLikeIan](https://discourse.julialang.org/u/NoFishLikeIan)\
**Replies:** 2\
**Last updated:** [January 26, 2026, 7:13am UTC](https://discourse.julialang.org/t/singular-bvp-with-integrable-boundaries/135224 "2026-01-26T07:13:46Z")

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I’m solving a singular first-order, two dimensional ODE arising in reputation games (Faingold & Sannikov, 2011). On \\phi \\in \[0, 1\], I have u' = \\frac{v}{\\phi(1-\\phi)} \\\\ v' = \\frac{1}{\\phi(1-\\phi)} \\left(v + 2\\rho \\f…

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## [Problem with first order BVProblem](https://discourse.julialang.org/t/problem-with-first-order-bvproblem/118073)

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**Author:** [@Sh\_166](https://discourse.julialang.org/u/Sh_166)\
**Replies:** 3\
**Last updated:** [August 12, 2024, 2:20pm UTC](https://discourse.julialang.org/t/problem-with-first-order-bvproblem/118073 "2024-08-12T14:20:17Z")

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I want to solve the following differential equation: \\frac{dv}{d\\xi} = 2 (\\frac{v}{\\xi}) \\frac{1-v^{2}}{1-v \\xi} \\frac{1}{(\\mu/c)^{2}-1} I have a boundary condition at the endpoint, v(\\xi\_{d}) = \\frac{\\xi\_{d}-c}{1-…

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## [Understanding how to use adaptive solver when dt is in the equations](https://discourse.julialang.org/t/understanding-how-to-use-adaptive-solver-when-dt-is-in-the-equations/117520)

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**Author:** [@dbox](https://discourse.julialang.org/u/dbox)\
**Replies:** 2\
**Last updated:** [July 26, 2024, 3:46pm UTC](https://discourse.julialang.org/t/understanding-how-to-use-adaptive-solver-when-dt-is-in-the-equations/117520 "2024-07-26T15:46:50Z")

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Hi, I’m trying to solve a system of equations where some of the terms have explicit dependence on dt. The way round this I am using is passing dt as a parameter: params = Dict(:dt =\> dt) params = NamedTuple(params) b…

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## [Issue with StaticArrays in Boundary Value Problems](https://discourse.julialang.org/t/issue-with-staticarrays-in-boundary-value-problems/115024)

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**Author:** [@RafaelDHR](https://discourse.julialang.org/u/RafaelDHR)\
**Replies:** 2\
**Last updated:** [June 28, 2024, 10:36am UTC](https://discourse.julialang.org/t/issue-with-staticarrays-in-boundary-value-problems/115024 "2024-06-28T10:36:11Z")

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Greetings, Recently I’ve been using the amazing DifferentialEquations package. However, few days ago I noticed that the package used for Boundary Value Problems BoundaryValueDiffEq has some issues when using Static Arra…

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## [Using vector of vectors for initial guess in TwoPointBVProblem](https://discourse.julialang.org/t/using-vector-of-vectors-for-initial-guess-in-twopointbvproblem/88362)

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**Author:** [@morningglory05](https://discourse.julialang.org/u/morningglory05)\
**Replies:** 5\
**Last updated:** [December 25, 2022, 7:39am UTC](https://discourse.julialang.org/t/using-vector-of-vectors-for-initial-guess-in-twopointbvproblem/88362 "2022-12-25T07:39:41Z")

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Hello! I am trying to run a bvp to obtain a periodic orbit. A forward integration IVP works with the current parameters, but there is an instability that causes problems with different parameters. This can be solved by u…

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## [How to solve a limit boundary value ODE in SciML (possibly using shooting methods)](https://discourse.julialang.org/t/how-to-solve-a-limit-boundary-value-ode-in-sciml-possibly-using-shooting-methods/85509)

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**Author:** [@Albert\_Zevelev](https://discourse.julialang.org/u/Albert_Zevelev)\
**Replies:** 6\
**Last updated:** [August 9, 2022, 9:05pm UTC](https://discourse.julialang.org/t/how-to-solve-a-limit-boundary-value-ode-in-sciml-possibly-using-shooting-methods/85509 "2022-08-09T21:05:39Z")

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In many fields it is common to encounter systems of differential equations with boundary conditions that occur at limits (rather than at finite points). For example, the Neoclassical growth model boils down to a system …