Small time Edgeworth-type expansions for weakly convergent nonhomogeneous Markov chains
Small time Edgeworth-type expansions for weakly convergent nonhomogeneous Markov chains
复制标题
弱收敛非齐次马尔可夫链的小时间埃奇沃斯型展开
DOI:
10.1007/s00440-007-0123-9
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发表时间:
2007
期刊:
影响因子:
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通讯作者:
E. Mammen
中科院分区:
文献类型:
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作者:
V. Konakov;E. Mammen
We consider triangular arrays of Markov chains that converge weakly to a diffusion process. Second order Edgeworth type expansions for transition densities are proved. The paper differs from recent results in two respects. We allow nonhomogeneous diffusion limits and we treat transition densities with time lag converging to zero. Small time asymptotics are motivated by statistical applications and by resulting approximations for the joint density of diffusion values at an increasing grid of points.
DOI:
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发表时间:
2004
期刊:
Probab. Theory Related Fields 129
影响因子:
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作者:
Yoshida;N
通讯作者:
N