Research output: Contribution to journal › Article › peer-review
Ergodicity for a Stochastic Geodesic Equation in the Tangent Bundle of the 2D Sphere. / Banas, Lubomír; Brzezniak, Zdzislaw; Neklyudov, Mikhail; Ondreját, Martin; Prohl, Andreas.
In: Czechoslovak Mathematical Journal, Vol. 65, No. 3, 2015, p. 617-657.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Ergodicity for a Stochastic Geodesic Equation in the Tangent Bundle of the 2D Sphere
AU - Banas, Lubomír
AU - Brzezniak, Zdzislaw
AU - Neklyudov, Mikhail
AU - Ondreját, Martin
AU - Prohl, Andreas
PY - 2015
Y1 - 2015
N2 - We study ergodic properties of stochastic geometric wave equations on a particular model with the target being the 2D sphere while considering only solutions which are independent of the space variable. This simplification leads to a degenerate stochastic equation in the tangent bundle of the 2D sphere. Studying this equation, we prove existence and non-uniqueness of invariant probability measures for the original problem and obtain also results on attractivity towards an invariant measure. We also present a structure-preserving numerical scheme to approximate solutions and provide computational experiments to motivatea and illustrate the theoretical results.
AB - We study ergodic properties of stochastic geometric wave equations on a particular model with the target being the 2D sphere while considering only solutions which are independent of the space variable. This simplification leads to a degenerate stochastic equation in the tangent bundle of the 2D sphere. Studying this equation, we prove existence and non-uniqueness of invariant probability measures for the original problem and obtain also results on attractivity towards an invariant measure. We also present a structure-preserving numerical scheme to approximate solutions and provide computational experiments to motivatea and illustrate the theoretical results.
U2 - 10.1007/s10587-015-0200-7
DO - 10.1007/s10587-015-0200-7
M3 - Article
VL - 65
SP - 617
EP - 657
JO - Czechoslovak Mathematical Journal
JF - Czechoslovak Mathematical Journal
SN - 0011-4642
IS - 3
ER -