Superresolution Rates in Prokhorov Metric
Canadian journal of mathematics, Tome 48 (1996) no. 2, pp. 316-329

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Consider the problem of recovering a probability measure supported by a compact subset U of Rm when the available measurements concern only some of its Ф-moments (Ф being an Rk valued continuous function on U). When the true Ф-moment c lies on the boundary of the convex hull of Ф(U), generalizing the results of [10], we construct a small set Rα,δ(∊) such that any probability measure μ satisfying is almost concentrated on Rα,δ(∊) . When Ф is a pointwise T-system (extension of T-systems), the study of the set Rα,δ(∊) leads to the evaluation of the Prokhorov radius of the set .
DOI : 10.4153/CJM-1996-017-9
Mots-clés : 52A40, 43A07, 62A99, Generalized moments, superresolution, T-systems, Prokhorov metric
Doukhan, P.; Gamboa, F. Superresolution Rates in Prokhorov Metric. Canadian journal of mathematics, Tome 48 (1996) no. 2, pp. 316-329. doi: 10.4153/CJM-1996-017-9
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[1] 1. Altomare, E. and Campiti, M.,Korovkin-type approximation theory and its applications, Walter de Gruyter-Berlin, 1994. Google Scholar

[2] 2. Anastassiou, G.A., The levy radius of a set of probability measures satisfying basic moment conditions involving ﹛t, J2﹜, Constr. Approx, 3 (1987), 257–263. Google Scholar

[3] 3., Weak convergence and the Prokhorov radius, J. Math. Anal. Appl. 163 (1992), 541—558. Google Scholar

[4] 4. De Vore, R. and Lorentz, G.G.,Constructive Approximation, Springer Verlag, New York, 1993. Google Scholar

[5] 5. Donoho, D., Superresolution via sparsity constraints, SIAM J. Math. Anal. 5 (1992), 1309–1331. Google Scholar

[6] 6. Donoho, D. and Gassiat, E., Superresolution via positivity constraints, 1992, preprint. Google Scholar

[7] 7. Donoho, D., Johnstone, I., Hoch, J. and Stern, , Maximum entropy and the nearly black object, J. Roy. Statist. Soc. Ser. B 54 (1992), 41–82. Google Scholar

[8] 8. Gamboa, F. and Gassiat, E., , Math. Programming, Series A 66 (1994), 103–122. Google Scholar

[9] 9. Gamboa, F., Bayesian methods for ill posed problems, Ann. Statist. (1996), to appear. Google Scholar

[10] 10. Gamboa, F., Sets of superresolution and the maximum entropy method on the mean, SIAM J. Math. Anal., 1996. to appear. Google Scholar

[11] 11. Gassiat, E., Probleme sommatoire par maximum d'entropie, C. R. Acad. Sci. Paris Ser. I 303 (1986), 675–680. Google Scholar

[12] 12. Gassiat, E., Probleme des moments et concentration de mesure, C. R. Acad. Sci. Paris Ser. I 310 (1990), 41–44. Google Scholar

[13] 13. Jansson, P.A.,Deconvolution, With Applications in Spectroscopy, New York, Academic Press, 1984. Google Scholar

[14] 14. Karlin, S. and Studden, W.J.,Tchebycheff Systems: With Applications in Analysis and Statistics, John Wiley and Sons, 1966. Google Scholar

[15] 15. Krein, M.G. and Nudel'man, A.A., The Markov moment problem and extremal problems, Amer. Math. Soc, 1977. Google Scholar

[16] 16. Lewis, A.S., Consistency of moment systems, J. Math. Anal. Appl. (1996), to appear. Google Scholar

[17] 17. Lewis, A.S., Superresolution in the Markov moment problem, 1993, preprint. Google Scholar

[18] 18. Milnor, J.,Morse theory, Princeton Univ. Press, 1963. Google Scholar

[19] 19. Navaza, J., Use ofnon local constraints in maximum entropy electron reconstruction, Acta Cryst. Sect. A 42 (1986), 212–222. Google Scholar

[20] 20. Prokhorov, Y.V., Convergence of random processes and limit theorems in probability theory, Theory Probab. Appl. 1 (1956), 157–214. Google Scholar

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