Abstract
We prove rectifiability results for special singularities of non-Lipschitz functions, namely for those points where the set of Fréchet horizon supergradients contains a nonzero vector subspace.
References
- G. Alberti, L. Ambrosio, P. Cannarsa: On the singularities of convex functions, Manuscr. Math. 76 (1992) 421–435.https://doi.org/10.1007/BF02567770Google Scholar
- G. Alberti: On the structure of singular sets of convex functions, Calc. Var. Partial Differ. Equ. 2 (1994) 17–27.https://doi.org/10.1007/BF01234313Google Scholar
- P. Albano, P. Cannarsa: Singularities of semiconcave functions in Banach spaces, in: Stochastic Analysis, Control, Optimization and Applications, W. M. McEneaney et al. (ed.), Birkhäuser, Boston (1999) 171–190.https://doi.org/10.1007/978-1-4612-1784-8_10Google Scholar
- P. Albano, P. Cannarsa: Structural properties of singularities of semiconcave functions, Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 28 (1999) 719–740.https://doi.org/10.1007/978-1-4612-1784-8_10Google Scholar
- L. Ambrosio, P. Tilli: Topics on Analysis in Metric Spaces, Oxford Lecture Series in Mathematics and its Applications 25, Oxford University Press, Oxford (2004).https://doi.org/10.1093/oso/9780198529385.001.0001Google Scholar
- M. Bardi, I. Capuzzo-Dolcetta: Optimal Control and Viscosity Solutions of Hamilton-Jacobi-Bellman Equations, Birkhäuser, Boston (1997).https://doi.org/10.1007/978-0-8176-4755-1Google Scholar
- P. Cannarsa, C. Sinestrari: Convexity properties of the minimum time function, Calc. Var. Partial Differ. Equ. 3 (1995) 273–298.https://doi.org/10.1007/BF01189393Google Scholar
- P. Cannarsa, C. Sinestrari: Semiconcave Functions, Hamilton-Jacobi Equations, and Optimal Control, Birkhäuser, Boston (2004).https://doi.org/10.1007/b138356Google Scholar
- P. Cannarsa, P. R. Wolenski: Semiconcavity of the value function for a class of differential inclusions, Discrete Contin. Dyn. Syst. 29 (2011) 453–466.https://doi.org/10.3934/dcds.2011.29.453Google Scholar
- A. Canino: On p-convex sets and geodesics, J. Differ. Equations 75 (1988) 118–157.https://doi.org/10.1016/0022-0396(88)90132-5Google Scholar
- F. H. Clarke, R. J. Stern, P. R. Wolenski: Proximal smoothness and the lower-C 2 property, J. Convex Analysis 2 (1995) 117–144.https://doi.org/10.68381/jca02008Google Scholar
- F. H. Clarke, Yu. S. Ledyaev, R. J. Stern, P. R. Wolenski: Nonsmooth Analysis and Control Theory, Springer, New York (1998).Google Scholar
- G. Colombo, V. V. Goncharov: Variational inequalities and regularity properties of closed sets in Hilbert spaces, J. Convex Analysis 8 (2001) 197–221.https://doi.org/10.68381/jca08009Google Scholar
- G. Colombo, A. Marigonda: Differentiability properties for a class of non-convex functions, Calc. Var. Partial Differ. Equ. 25 (2006) 1–31.https://doi.org/10.1007/s00526-005-0352-7Google Scholar
- G. Colombo, A. Marigonda, P. R. Wolenski: Some new regularity properties for the minimal time function, SIAM J. Control Optim. 44 (2006) 2285–2299.https://doi.org/10.1137/050630076Google Scholar
- G. Colombo, Khai T. Nguyen: On the structure of the minimum time function, SIAM J. Control Optim. 48 (2010) 4776–4814.https://doi.org/10.1137/090774549Google Scholar
- P. Erdös: Some remarks on the measurability of certain sets, Bull. Amer. Math. Soc. 51 (1945) 728–731.https://doi.org/10.1090/S0002-9904-1945-08429-8Google Scholar
- H. Federer: Geometric Measure Theory, Springer, Berlin (1969).Google Scholar
- Khai T. Nguyen: Hypographs satisfying an external sphere condition and the regularity of the minimum time function, J. Math. Anal. Appl. 372 (2010) 611–628.https://doi.org/10.1016/j.jmaa.2010.07.010Google Scholar
- P. Mattila: Geometry of Sets and Measures in Euclidean Spaces. Fractals and Rectifiability, Cambridge Studies in Advanced Mathematics 44, Cambridge University Press, Cambridge (1995).https://doi.org/10.1017/CBO9780511623813Google Scholar
- C. Nour, R. J. Stern, J. Takche: Proximal smoothness and the exterior sphere condition, J. Convex Analysis 16 (2009) 501–514.https://doi.org/10.68381/jca16027Google Scholar
- C. Nour, R. J. Stern, J. Takche: The θ-exterior sphere condition, ϕ-convexity, and local semiconcavity, Nonlinear Anal. 73 (2010) 573–589.https://doi.org/10.1016/j.na.2010.04.001Google Scholar
- R. A. Poliquin, R. T. Rockafellar, L. Thibault: Local differentiability of distance functions, Trans. Amer. Math. Soc. 352 (2000) 5231–5249.https://doi.org/10.1090/S0002-9947-00-02550-2Google Scholar
- R. T. Rockafellar: Clarke’s tangent cones and the boundaries of closed sets in Rn, Nonlinear Anal. 3 (1979) 145–154.https://doi.org/10.1016/0362-546X(79)90044-0Google Scholar
- L. Veselý: On the multiplicity points of monotone operators on separable Banach spaces, Commentat. Math. Univ. Carol. 27 (1986) 551–570.Google Scholar
- L. Veselý: On the multiplicity points of monotone operators on separable Banach spaces, Commentat. Math. Univ. Carol. 28 (1987) 295–299.Google Scholar
- L. Zajíček: On the points of multiplicity of monotone operators, Commentat. Math. Univ. Carol. 19 (1978) 179–189.Google Scholar
- L. Zajíček: On the differentiation of convex functions in finite and infinite dimentional spaces, Czech. Math. J. 29 (1979) 340–348.https://doi.org/10.21136/CMJ.1979.101616Google Scholar
Suggested citation
Published by Heldermann Verlag, 2012. Rights now held by Banach Press LLC.
