Abstract
Martingales with jumps on Riemannian manifolds and harmonic maps with respect to Markov processes are discussed in this paper. Discontinuous martingales on manifolds were introduced in Picard (Séminaire de Probabilités de Strasbourg 25:196–219, 1991). We obtain results about the convergence of martingales with finite quadratic variations on Riemannian submanifolds of higher-dimensional Euclidean space as \(t\rightarrow \infty \) and as \(t\rightarrow 0\). Furthermore, we apply the result about martingales with jumps on submanifolds to harmonic maps with respect to Markov processes such as fractional harmonic maps.
Similar content being viewed by others
Data Availability
Data sharing is not applicable to this article as no datasets were generated or analyzed during the current study.
References
Atsuji, A.: Parabolicity, the divergence theorem for \(\delta \)-subharmonic functions and applications to the Liouville theorems for harmonic maps. Tohoku Math. J. 57, 353–373 (2005)
J.-Y. Calais and M. Génin, Sur les martingales locales continues indexées par \( ]0,\infty [ \), Séminaire de probabilités 17 (1983), 162.178
Chen, Z.-Q., Fitzsimmons, P.J., Kuwae, K., Zhang, T.-S.: Stochastic calculus for symmetric Markov processes. Ann. Probab. 36, 931–970 (2008)
Chen, Z.-Q., Fukushima, M.: Symmetric Markov processes, time change, and boundary theory. Princeton University Press, Princeton (2011)
Çinlar, E., Jacod, J., Protter, P., Sharpe, M.J.: Semimartingales and Markov processes. Z. Wahrscheinlichkeitstheorie verw. Gebiete 54, 161–219 (1980)
Cohen, S.: Géométrie différentielle stochastique avec sauts 1. Stoch. Int. J. Probab. Stoch. Process 56, 179–203 (1996)
Cohen, S.: Géométrie différentielle stochastique avec sauts 2: discrétisation et applications des eds avec sacutes. Stoch. Int. J. Probab. Stoch. Process 56, 205–225 (1996)
Da Lio, F., Riviére, T.: Three-term commutator estimates and the regularity of \(\frac{1}{2}\) -harmonic maps into spheres. Anal. PDE 4(1), 149–190 (2011)
Da Lio, F., Riviére, T.: Sub-criticality of non-local Schrödinger systems with antisymmetric potentials and applications to half-harmonic maps. Adv. Math. 227, 1300–1348 (2011)
Darling, R.W.R.: Martingales on manifolds and geometric Itô calculus, Ph.D. Thesis, University of Warwick (1982)
Darling, R.W.R.: Convergence of martingales on a Riemannian Manifold. Publ. Res. Inst. Math. Sci. 19(2), 753–763 (1983)
Émery, M.: Stochastic caluculus in manifolds. Universitext, Springer-Verlag, Berlin (1989)
Émery, M.: Convergence des martingales dans les variétś. Colloque en l’honneur de Laurent Schwartz 2(132), 47–63 (1985)
Fukushima, M., Oshima, Y., Takeda, M.: Dirichlet forms and symmetric markov processes, 2nd ed., de Gruyter Stud. Math., vol. 19, Walter de Gruyter & Co., Berlin, (2010)
Fukushima, M.: A decomposition of additive functionals of finite energy. Nagoya Math. J. 74, 137–168 (1979)
He, S.-W., Yan, J.-A., Zheng, W.-A.: Sur la convergence des semimartingales continues dans \({\mathbb{R} }^{n}\) et des martingales dans une variétés. Séminaire de probabilités 17, 179–184 (1983)
He, S.-W., Zheng, W.-A.: Remarques sur la convergence des martingales dans les variétés. Séminaire de probabilités 18, 174–178 (1984)
Hsu, E.P.: Stochastic analysis on manifolds, graduate studies in mathematics, vol. 38, American Mathematical Society, (2002)
Kendall, W.S.: Martingales on manifolds and harmonic maps. Contemp. Math. 73, 121–157 (1988)
Kuwae, K.: Stochastic calculus over symmetric Markov processes without time reversal. Ann. Probab. 38, 1532–1569 (2010)
Maillard-Teyssier, L.: Stochastic Covariant Calculus with Jumps and Stochastic Calculus with Covariant Jumps, Séminaire de Probabilités XXXIX, In: Memoriam Paul-André Meyer. Lecture notes in math. 1874, 381–417 (2006)
Meyer, P.-A., Le théoréme de convergence des martingales dans les variétés riemanniennes d’aprés R.W. Darling et W.A. Zheng. Séminaire de probabilités de Strasbourg textbf17 (1983), 187–193
Nakao, S.: Stochastic calculus for continuous additive functionals of zero energy. Z. Wahrsch. Verw. Gebiete 68, 557–578 (1985)
Picard, J.: Calcul stochastique avec sauts sur une variété. Séminaire de Probabilités de Strasbourg 25, 196–219 (1991)
Picard, J.: Barycentres et martingales sur une variété. Annales de l’Institut Henri Poincaré Probabilités et Statistiques 30(4), 647–702 (1994)
Picard, J.: Smoothness of harmonic maps for hypoelliptic diffusions. Ann. Probab. 28(2), 643–666 (2000)
Picard, J.: The manifold-valued dirichlet problem for symmetric diffusions. Potential Anal. 14, 53–72 (2001)
Protter, P.: Stochastic integration and differential equations. In: Stochastic modelling and applied probability, Springer, Berlin (2005)
Sharpe, M.J.: Local times and singularities of continuous local martingales. Séminaire de probabilités 14, 76–101 (1980)
Silverstein, M.L.: The reflected Dirichlet space. Ill. J. Math. 18, 310–355 (1974)
Walsh, J.B.: A property of conformal martingales. Séminaire de probabilités 581, 490–492 (1977)
Acknowledgements
The author is grateful to Professor Hariya, his supervisor, for his careful reading of the previous version of the manuscript and for helpful comments. The author also thanks a referee for his/her constructive comments and corrections which have led to significant improvement of this paper.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
No conflict is related to this article, and the author has no relevant financial or non-financial interests to disclose.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Okazaki, F. Convergence of Martingales with Jumps on Submanifolds of Euclidean Spaces and its Applications to Harmonic Maps. J Theor Probab (2023). https://doi.org/10.1007/s10959-023-01273-6
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s10959-023-01273-6