# Regularity and variationality of solutions to Hamilton-Jacobi equations. Part I: Regularity

• Volume: 10, Issue: 3, page 426-451
• ISSN: 1292-8119

top

## Abstract

top
We formulate an Hamilton-Jacobi partial differential equation H( x, D u(x))=0 on a n dimensional manifold M, with assumptions of convexity of H(x, .) and regularity of H (locally in a neighborhood of {H=0} in T*M); we define the “minsol solution” u, a generalized solution; to this end, we view T*M as a symplectic manifold. The definition of “minsol solution” is suited to proving regularity results about u; in particular, we prove in the first part that the closure of the set where u is not regular may be covered by a countable number of $n-1$ dimensional manifolds, but for a ${ℋ}^{n-1}$ negligeable subset. These results can be applied to the cutlocus of a C2 submanifold of a Finsler manifold.

## How to cite

top

Mennucci, Andrea C.G.. "Regularity and variationality of solutions to Hamilton-Jacobi equations. Part I: Regularity." ESAIM: Control, Optimisation and Calculus of Variations 10.3 (2010): 426-451. <http://eudml.org/doc/90737>.

@article{Mennucci2010,
abstract = { We formulate an Hamilton-Jacobi partial differential equation H( x, D u(x))=0 on a n dimensional manifold M, with assumptions of convexity of H(x, .) and regularity of H (locally in a neighborhood of \{H=0\} in T*M); we define the “minsol solution” u, a generalized solution; to this end, we view T*M as a symplectic manifold. The definition of “minsol solution” is suited to proving regularity results about u; in particular, we prove in the first part that the closure of the set where u is not regular may be covered by a countable number of $n-1$ dimensional manifolds, but for a $\{\{\mathcal H\}\}^\{n-1\}$ negligeable subset. These results can be applied to the cutlocus of a C2 submanifold of a Finsler manifold. },
author = {Mennucci, Andrea C.G.},
journal = {ESAIM: Control, Optimisation and Calculus of Variations},
keywords = {Hamilton-Jacobi equations; conjugate points.; Hamilton-Jacobi equation; manifold; min solution; viscosity solution; geodesics; regularity; conjugate points; Finsler manifold},
language = {eng},
month = {3},
number = {3},
pages = {426-451},
publisher = {EDP Sciences},
title = {Regularity and variationality of solutions to Hamilton-Jacobi equations. Part I: Regularity},
url = {http://eudml.org/doc/90737},
volume = {10},
year = {2010},
}

TY - JOUR
AU - Mennucci, Andrea C.G.
TI - Regularity and variationality of solutions to Hamilton-Jacobi equations. Part I: Regularity
JO - ESAIM: Control, Optimisation and Calculus of Variations
DA - 2010/3//
PB - EDP Sciences
VL - 10
IS - 3
SP - 426
EP - 451
AB - We formulate an Hamilton-Jacobi partial differential equation H( x, D u(x))=0 on a n dimensional manifold M, with assumptions of convexity of H(x, .) and regularity of H (locally in a neighborhood of {H=0} in T*M); we define the “minsol solution” u, a generalized solution; to this end, we view T*M as a symplectic manifold. The definition of “minsol solution” is suited to proving regularity results about u; in particular, we prove in the first part that the closure of the set where u is not regular may be covered by a countable number of $n-1$ dimensional manifolds, but for a ${{\mathcal H}}^{n-1}$ negligeable subset. These results can be applied to the cutlocus of a C2 submanifold of a Finsler manifold.
LA - eng
KW - Hamilton-Jacobi equations; conjugate points.; Hamilton-Jacobi equation; manifold; min solution; viscosity solution; geodesics; regularity; conjugate points; Finsler manifold
UR - http://eudml.org/doc/90737
ER -

## References

top
1. G. Alberti, On the structure of singular sets of convex functions. Calc. Var. Partial Differ. Equ.2 (1994) 17-27.
2. A. Ambrosetti and G. Prodi, A primer of nonlinear analysis. Cambridge University Press, Cambridge (1993).
3. L. Ambrosio, P. Cannarsa and H.M. Soner, On the propagation of singularities of semi-convex functions. Ann. Scuola. Norm. Sup. PisaXX (1993) 597-616.
4. P. Cannarsa, A. Mennucci and C. Sinestrari, Regularity results for solutions of a class of Hamilton-Jacobi equations. Arch. Ration. Mech. Anal.140 (1997) 197-223 (or, preprint 13-95 Dip. Mat. Univ Tor Vergata, Roma).
5. R. Courant and D. Hilbert, Methods of Mathematical Physics, volume II. Interscience, New York (1963).
6. T. Djaferis and I. Schick, Eds., Advances in System Theory. Kluwer Academic Publishers Boston, October (1999).
7. L.C. Evans, Partial Differential Equations. A.M.S. Grad. Stud. Math.19 (2002).
8. H. Federer, Geometric measure theory. Springer-Verlag, Berlin (1969).
9. W.H. Fleming and H.M. Soner, Controlled Markov processes and viscosity solutions. Springer-Verlag, Berlin (1993).
10. P. Hartman, Ordinary Differential Equations. Wiley, New York (1964).
11. J. Itoh and M. Tanaka, The Lipschitz continuity of the distance function to the cut locus. Trans. Amer. Math. Soc.353 (2000) 21-40.
12. S.N. Kružhkov, The cauchy problem in the large for certain non-linear first order differential equations. Soviet Math. Dockl.1 (1960) 474-475.
13. Yan yan Li and L. Nirenberg, The distance function to the boundary, finsler geometry and the singular set of viscosity solutions of some Hamilton-Jacobi equations (2003) (preprint).
14. P.L. Lions, Generalized Solutions of Hamilton-Jacobi Equations. Pitman, Boston (1982).
15. C. Mantegazza and A.C. Mennucci, Hamilton-Jacobi equations and distance functions on Riemannian manifolds. Appl. Math. Optim.47 (2003) 1-25.
16. D. McDuff and D. Salomon, Introduction to Symplectic Topology. Oxford Mathematical Monograph, Oxford University Press, Clarendon Press, Oxford (1995).
17. A.C.G. Mennucci, Regularity and variationality of solutions to Hamilton-Jacobi equations. Part ii: variationality, existence, uniqueness (in preparation).
18. C. Sinestrari and P. Cannarsa, Semiconcave functions, Hamilton-Jacobi equations and optimal control problems, in Progress in Nonlinear Differential Equations and Their Applications, Vol. 58, Birkhauser Boston (2004).
19. G.J. Galloway, P.T. Chruściel, J.H.G. Fu and R. Howard, On fine differentiability properties of horizons and applications to Riemannian geometry (to appear).
20. C. Pignotti, Rectifiability results for singular and conjugate points of optimal exit time problems. J. Math. Anal. Appl.270 (2002) 681-708.
21. L. Simon, Lectures on Geometric Measure Theory, Vol. 3 of Proc. Center for Mathematical Analysis. Australian National University, Canberra (1983).
22. Y. Yomdin, β-spreads of sets in metric spaces and critical values of smooth functions.
23. Y. Yomdin, The geometry of critical and near-critical values of differential mappings. Math. Ann.4 (1983) 495-515.
24. Y. Yomdin, Metric properties of semialgebraic sets and mappings and their applications in smooth analysis, in Géométrie algébrique et applications, III (la Rábida, 1984), Herman, Paris (1987) 165-183.

## NotesEmbed?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.