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Second-order approximations for certain stopped sums in extended renewal theory

Published online by Cambridge University Press:  01 July 2016

Gerold Alsmeyer*
Affiliation:
University of Kiel
*
Postal address: Mathematisches Seminar, Universität Kiel, Olshausenstraβe 40, D-2300 Kiel 1, W. Germany.

Abstract

Let (X0, Y0), (X1, Y1), · ·· be a sequence of independent two-dimensional random vectors such that (X1, Y1), (X2, Y2), · ·· are i.i.d. Let {(Sn, Un)}n≧0 be the associated sum process, and define for t ≧ 0 Under suitable conditions on (X0, Y0) and (X1, Y1) we derive expansions up to vanishing terms, as t→∞, for EUT(t), Var UT(t) and Cov (UT(t), T(t)). Corresponding results will be obtained for EUN(t), Var UN(t) and Cov (UN(t), N(t)) when X0, Χ1 are both almost surely non-negative and

Type
Research Article
Copyright
Copyright © Applied Probability Trust 1988 

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References

Barlow, R. E. and Proschan, F. (1965) Mathematical Theory of Reliability. Wiley, New York.Google Scholar
Brown, M. and Ross, S. M. (1972) Asymptotic properties of cumulative processes. SIAM J. Appl. Math. 22, 93105.Google Scholar
Brown, M. and Solomon, H. (1975) A second-order approximation for the variance of a renewal reward process. Stoch. Proc. Appl. 3, 301314.Google Scholar
Bühlmann, H. (1970) Mathematical Methods in Risk Theory. Springer-Verlag, Berlin.Google Scholar
Carlsson, H. (1983) Remainder term estimates of the renewal function. Ann. Prob. 11, 143157.Google Scholar
Feller, W. (1971) An Introduction to Probability Theory and Its Applications, Vol. 2. Wiley, New York.Google Scholar
Gut, A. (1974) On the moments and limit distributions of some first passage times. Ann. Prob. 2, 277308.CrossRefGoogle Scholar
Gut, A. and Ahlberg, P. (1981) On the theory of chromatography based upon renewal theory and a central limit theorem for randomly indexed partial sums of random variables. Chemica Scripta 18, 248255.Google Scholar
Gut, A. and Janson, S. (1983) The limiting behaviour of certain stopped sums and some applications. Scand. J. Statist. 10, 281292.Google Scholar
Heyman, D. P. and Sobel, M. J. (1982) Stochastic Models in Operations Research. McGraw-Hill, New York.Google Scholar
Lai, T. L. and Siegmund, D. (1979) A non-linear renewal theory with applications to sequential analysis II. Ann. Statist. 7, 6076.Google Scholar
Lorden, G. (1970) On excess over the boundary. Ann. Math. Statist. 41, 520527.Google Scholar
Siegmund, D. (1975) The time until ruin in collective risk theory. Mitt. Verein. Schweiz. Versich.-Math. 75, 157166.Google Scholar
Smith, W. (1959) Cumulants of renewal processes. Biometrika 46, 129.Google Scholar
Stone, C. (1965) On characteristic functions and renewal theory. Trans. Amer. Math. Soc. 120, 327342.Google Scholar
Woodroofe, M. (1982) Nonlinear Renewal Theory in Sequential Analysis. CBMS Reg. Conf. Series 39, SIAM, Philadelphia.CrossRefGoogle Scholar