Stabilization by noise of a ℂ2-valued coupled system

Author:

Chen Joe P.1,Ford Lance2,Kielty Derek3,Majumdar Rajeshwari4,McCain Heather5,O’Connell Dylan6,Shum Fan Ny7

Affiliation:

1. Department of Mathematics, Colgate University, Hamilton, NY 13346, USA

2. Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73126, USA

3. Department of Mathematics, University of Illinois, Urbana, IL 61801, USA

4. Department of Mathematics, University of Connecticut, Storrs, CT 06269, USA

5. Division of Marine Science, The University of Southern Mississippi, Hattiesburg, MS 39406, USA

6. Department of Statistics, Yale University, New Haven, CT 06511, USA

7. Department of Mathematics, Courant Institute of Mathematical Sciences, New York University, New York, NY 10012, USA

Abstract

D. Herzog and J. Mattingly have shown that a [Formula: see text]-valued polynomial ODE with finite-time blow-up solutions may be stabilized by the addition of [Formula: see text]-valued Brownian noise. In this paper, we extend their results to a [Formula: see text]-valued system of coupled ODEs with finite-time blow-up solutions. We show analytically and numerically that stabilization can be achieved in our setting by adding a suitable Brownian noise, and that the resulting system of SDEs is ergodic. The proof uses the Girsanov theorem to induce a time change from our [Formula: see text]-system to a quasi-[Formula: see text]-system similar to the one studied by Herzog and Mattingly.

Funder

National Science Foundation

Publisher

World Scientific Pub Co Pte Lt

Subject

Modelling and Simulation

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