Self-Duality of Markov Processes and Intertwining Functions
Self-Duality of Markov Processes and Intertwining Functions
复制标题
马尔可夫过程的自对偶性和交织函数
DOI:
10.1007/s11040-018-9289-x
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
W. Groenevelt
中科院分区:
文献类型:
--
作者:
C. Franceschini;C. Giardinà;W. Groenevelt
We present a theorem which elucidates the connection between self-duality of Markov processes and representation theory of Lie algebras. In particular, we identify sufficient conditions such that the intertwining function between two representations of a certain Lie algebra is the self-duality function of a (Markov) operator. In concrete terms, the two representations are associated to two operators in interwining relation. The self-dual operator, which arise from an appropriate symmetric linear combination of them, is the generator of a Markov process. The theorem is applied to a series of examples, including Markov processes with a discrete state space (e.g. interacting particle systems) and Markov processes with continuous state space (e.g. diffusion processes). In the examples we use explicit representations of Lie algebras that are unitarily equivalent. As a consequence, in the discrete setting self-duality functions are given by orthogonal polynomials whereas in the continuous context they are Bessel functions.
影响因子:
1.6
作者:
Jansen, Sabine;Kurt, Noemi
通讯作者:
Kurt, Noemi
影响因子:
1.4
作者:
V. Belitsky;G.M. Schütz
通讯作者:
G.M. Schütz