---
res:
  bibo_abstract:
  - "The continuous evolution of a wide variety of systems, including continous-time
    Markov chains and linear hybrid automata, can be\r\ndescribed in terms of linear
    differential equations. In this paper we study the decision problem of whether
    the solution x(t) of a system of linear differential equations dx/dt = Ax reaches
    a target halfspace infinitely often. This recurrent reachability problem can\r\nequivalently
    be formulated as the following Infinite Zeros Problem: does a real-valued function
    f:R≥0 --&gt; R satisfying a given linear\r\ndifferential equation have infinitely
    many zeros? Our main decidability result is that if the differential equation
    has order at most 7, then the Infinite Zeros Problem is decidable. On the other
    hand, we show that a decision procedure for the Infinite Zeros Problem at order
    9 (and above) would entail a major breakthrough in Diophantine Approximation,
    specifically an algorithm for computing the Lagrange constants of arbitrary real
    algebraic numbers to arbitrary precision.@eng"
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Ventsislav K
      foaf_name: Chonev, Ventsislav K
      foaf_surname: Chonev
      foaf_workInfoHomepage: http://www.librecat.org/personId=36CBE2E6-F248-11E8-B48F-1D18A9856A87
  - foaf_Person:
      foaf_givenName: Joël
      foaf_name: Ouaknine, Joël
      foaf_surname: Ouaknine
  - foaf_Person:
      foaf_givenName: James
      foaf_name: Worrell, James
      foaf_surname: Worrell
  bibo_doi: 10.1145/2933575.2934548
  dct_date: 2016^xs_gYear
  dct_identifier:
  - UT:000387609200052
  dct_language: eng
  dct_publisher: IEEE@
  dct_title: On recurrent reachability for continuous linear dynamical systems@
...
