uncertainty quantification of spdes with multi-dimensional levy processes

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Generalized FP eqn for linear SODEs system driven by additive pure jump processes by Ito's fomula integration by parts + variable change

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Page 1: uncertainty quantification of SPDEs with multi-dimensional Levy processes

Generalized FP eqn for linear SODEs system driven by additive pure jump processes

by Ito's fomula

integration by parts + variable change

Page 2: uncertainty quantification of SPDEs with multi-dimensional Levy processes

TFPDE as FP eqn for overdamped Langevin eqn

Page 3: uncertainty quantification of SPDEs with multi-dimensional Levy processes

TFPDE as FP eqn for overdamped Langevin eqn

PCM/CP vs. TFPDE (error of 2nd moments):

stochastic

vs. deterministic

approach!

histogram from MC

vs. density from

TFPDE

Page 4: uncertainty quantification of SPDEs with multi-dimensional Levy processes

multi-dim jump Levy dependence structure

Heat eqn w/ 2-dim jump processes (LePage)

LePage radial decomposition

Levy copula

directional TF

derivative along r

isometry of levy measure

Page 5: uncertainty quantification of SPDEs with multi-dimensional Levy processes

Heat eqn w/ 2-dim jump processes (copula)

Levy copula

Page 6: uncertainty quantification of SPDEs with multi-dimensional Levy processes

Heat eqn w/ 2-dim jump processes (LePage)

MC/S joint PDF vs.

directional TFPDE

Page 7: uncertainty quantification of SPDEs with multi-dimensional Levy processes

Heat eqn w/ 2-dim jump processes (copula)

exact vs.

TFPDE in

moments

'weighted' partial

tempered fractional

derivative ! weight is v(z1,z2)