Characterization of convergence rates for the approximation of the stationary distribution of infinite monotone stochastic matrices
Identifieur interne : 000C71 ( PascalFrancis/Corpus ); précédent : 000C70; suivant : 000C72Characterization of convergence rates for the approximation of the stationary distribution of infinite monotone stochastic matrices
Auteurs : F. Simonot ; Y. Q. SongSource :
- Journal of applied probability [ 0021-9002 ] ; 1996.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
Let P be an infinite irreducible stochastic matrix, recurrent positive and stochastically monotone and Pn be any n x n stochastic matrix with Pn≥ Tn' where Tn denotes the n x n northwest corner truncation of P. These assumptions imply the existence of limit distributions π and πn for P and Pn respectively. We show that if the Markov chain with transition probability matrix P meets the further condition of geometric recurrence then the exact convergence rate of πn to π can be expressed in terms of the radius of convergence of the generating function of π. As an application of the preceding result, we deal with the random walk on a half line and prove that the assumption of geometric recurrence can be relaxed. We also show that if the i.i.d. input sequence (Aim)) is such that we can find a real number ro > 1 with E(rA0) = 1, then the exact convergence rate of πn to π is characterized by ro. Moreover, when the generating function of A is not defined for |z| > 1, we derive an upper bound for the distance between πn and π based on the moments of A.
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Format Inist (serveur)
NO : | PASCAL 97-0227616 INIST |
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ET : | Characterization of convergence rates for the approximation of the stationary distribution of infinite monotone stochastic matrices |
AU : | SIMONOT (F.); SONG (Y. Q.) |
AF : | Université Henri Poincaré/France (1 aut.); CRIN-ENSEM/France (2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Journal of applied probability; ISSN 0021-9002; Coden JPRBAM; Royaume-Uni; Da. 1996; Vol. 33; No. 4; Pp. 974-985; Bibl. 20 ref. |
LA : | Anglais |
EA : | Let P be an infinite irreducible stochastic matrix, recurrent positive and stochastically monotone and Pn be any n x n stochastic matrix with Pn≥ Tn' where Tn denotes the n x n northwest corner truncation of P. These assumptions imply the existence of limit distributions π and πn for P and Pn respectively. We show that if the Markov chain with transition probability matrix P meets the further condition of geometric recurrence then the exact convergence rate of πn to π can be expressed in terms of the radius of convergence of the generating function of π. As an application of the preceding result, we deal with the random walk on a half line and prove that the assumption of geometric recurrence can be relaxed. We also show that if the i.i.d. input sequence (Aim)) is such that we can find a real number ro > 1 with E(rA0) = 1, then the exact convergence rate of πn to π is characterized by ro. Moreover, when the generating function of A is not defined for |z| > 1, we derive an upper bound for the distance between πn and π based on the moments of A. |
CC : | 001A02H01J; 001A02H01K |
FD : | Matrice stochastique; Chaîne Markov; Loi limite; Taux convergence; Processus stationnaire |
ED : | Stochastic matrix; Markov chain; Limit distribution; Convergence rate; Stationary process |
SD : | Matriz estocástica; Cadena Markov; Ley límite; Relación convergencia; Proceso estacionario |
LO : | INIST-12216.354000062831220070 |
ID : | 97-0227616 |
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Pascal:97-0227616Le document en format XML
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<front><div type="abstract" xml:lang="en">Let P be an infinite irreducible stochastic matrix, recurrent positive and stochastically monotone and P<sub>n</sub>
be any n x n stochastic matrix with P<sub>n</sub>
≥ T<sub>n'</sub>
where T<sub>n</sub>
denotes the n x n northwest corner truncation of P. These assumptions imply the existence of limit distributions π and π<sub>n</sub>
for P and P<sub>n</sub>
respectively. We show that if the Markov chain with transition probability matrix P meets the further condition of geometric recurrence then the exact convergence rate of π<sub>n</sub>
to π can be expressed in terms of the radius of convergence of the generating function of π. As an application of the preceding result, we deal with the random walk on a half line and prove that the assumption of geometric recurrence can be relaxed. We also show that if the i.i.d. input sequence (Aim)) is such that we can find a real number r<sub>o</sub>
> 1 with E(r<sup>A</sup>
<sub>0</sub>
) = 1, then the exact convergence rate of π<sub>n</sub>
to π is characterized by r<sub>o</sub>
. Moreover, when the generating function of A is not defined for |z| > 1, we derive an upper bound for the distance between π<sub>n</sub>
and π based on the moments of A.</div>
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be any n x n stochastic matrix with P<sub>n</sub>
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where T<sub>n</sub>
denotes the n x n northwest corner truncation of P. These assumptions imply the existence of limit distributions π and π<sub>n</sub>
for P and P<sub>n</sub>
respectively. We show that if the Markov chain with transition probability matrix P meets the further condition of geometric recurrence then the exact convergence rate of π<sub>n</sub>
to π can be expressed in terms of the radius of convergence of the generating function of π. As an application of the preceding result, we deal with the random walk on a half line and prove that the assumption of geometric recurrence can be relaxed. We also show that if the i.i.d. input sequence (Aim)) is such that we can find a real number r<sub>o</sub>
> 1 with E(r<sup>A</sup>
<sub>0</sub>
) = 1, then the exact convergence rate of π<sub>n</sub>
to π is characterized by r<sub>o</sub>
. Moreover, when the generating function of A is not defined for |z| > 1, we derive an upper bound for the distance between π<sub>n</sub>
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<server><NO>PASCAL 97-0227616 INIST</NO>
<ET>Characterization of convergence rates for the approximation of the stationary distribution of infinite monotone stochastic matrices</ET>
<AU>SIMONOT (F.); SONG (Y. Q.)</AU>
<AF>Université Henri Poincaré/France (1 aut.); CRIN-ENSEM/France (2 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of applied probability; ISSN 0021-9002; Coden JPRBAM; Royaume-Uni; Da. 1996; Vol. 33; No. 4; Pp. 974-985; Bibl. 20 ref.</SO>
<LA>Anglais</LA>
<EA>Let P be an infinite irreducible stochastic matrix, recurrent positive and stochastically monotone and P<sub>n</sub>
be any n x n stochastic matrix with P<sub>n</sub>
≥ T<sub>n'</sub>
where T<sub>n</sub>
denotes the n x n northwest corner truncation of P. These assumptions imply the existence of limit distributions π and π<sub>n</sub>
for P and P<sub>n</sub>
respectively. We show that if the Markov chain with transition probability matrix P meets the further condition of geometric recurrence then the exact convergence rate of π<sub>n</sub>
to π can be expressed in terms of the radius of convergence of the generating function of π. As an application of the preceding result, we deal with the random walk on a half line and prove that the assumption of geometric recurrence can be relaxed. We also show that if the i.i.d. input sequence (Aim)) is such that we can find a real number r<sub>o</sub>
> 1 with E(r<sup>A</sup>
<sub>0</sub>
) = 1, then the exact convergence rate of π<sub>n</sub>
to π is characterized by r<sub>o</sub>
. Moreover, when the generating function of A is not defined for |z| > 1, we derive an upper bound for the distance between π<sub>n</sub>
and π based on the moments of A.</EA>
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