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Träfflista för sökning "LAR1:gu ;mspu:(article);pers:(Jagers Peter 1941);srt2:(2005-2009)"

Search: LAR1:gu > Journal article > Jagers Peter 1941 > (2005-2009)

  • Result 1-10 of 13
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  • Jagers, Peter, 1941 (author)
  • Extinction
  • 2009
  • In: Math. Pop Studies. ; 16:3, s. 175-176
  • Journal article (peer-reviewed)
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3.
  • Jagers, Peter, 1941, et al. (author)
  • General branching processes conditioned on extinction are still branching processes
  • 2008
  • In: Electronic Communications in Probability. - 1083-589X. ; 13, s. 540-547
  • Journal article (peer-reviewed)abstract
    • It is well known that a simple, supercritical Bienaymé-Galton-Watson process turns into a subcritical such process, if conditioned to die out. We prove that the corresponding holds true for general, multi-type branching, where child-bearing may occur at different ages, life span may depend upon reproduction, and the whole course of events is thus affected by conditioning upon extinction.
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4.
  • Jagers, Peter, 1941, et al. (author)
  • General branching processes in discrete time as random trees.
  • 2008
  • In: Bernoulli. - 1350-7265. ; 14:4, s. 949-962
  • Journal article (peer-reviewed)abstract
    • The simple Galton-Watson process describes populations where individuals live one season and are then replaced by a random number of children. It can also be viewed as a way of generating random trees, each vertex being an individual of the family tree. This viewpoint has led to new insights and a revival of classical theory. We show how a similar reinterpretation can shed new light on the more interesting forms of branching processes that allow repeated bearings and, thus, overlapping generations. In particular, we use the stable pedigree law to give a transparent description of a size-biased version of general branching processes in discrete time. This allows us to analyse the xlog x condition for exponential growth of supercritical general processes, and also the relation between simple Galton-Watson and more general branching processes.
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6.
  • Jagers, Peter, 1941 (author)
  • Matematikens ord
  • 2009
  • In: LexicoNordica. ; 16, s. 315-318
  • Journal article (peer-reviewed)
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  • Jagers, Peter, 1941, et al. (author)
  • Politiken hotar matematiken
  • 2009
  • In: Svenska Dagbladet. ; 2009-09-02
  • Journal article (other academic/artistic)
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10.
  • Jagers, Peter, 1941, et al. (author)
  • The mixing advantage is less than 2
  • 2009
  • In: Extremes. - : Springer Science and Business Media LLC. - 1386-1999 .- 1572-915X. ; 12:1, s. 19-31
  • Journal article (peer-reviewed)abstract
    • Corresponding to n independent non-negative random variables X_1,...,X_n , are values M_1,...,M_n , where each M_i is the expected value of the maximum of n independent copies of X_i. We obtain an upper bound for the expected value of the maximum of X_1,...,X_n in terms of M_1,...,M_n . This inequality is sharp in the sense that the random variables can be chosen so that the bound is approached arbitrarily closely. We also present related comparison results.
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  • Result 1-10 of 13

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