Evolving Graph-Structures and Their Implicit Computational Complexity

  • Daniel Leivant
  • Jean-Yves Marion
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7966)


Dynamic data-structures are ubiquitous in programming, and they use extensively underlying directed multi-graph structures, such as labeled trees, DAGs, and objects. This paper adapts well-established static analysis methods, namely data ramification and language-based information flow security, to programs over such graph structures. Our programs support the creation, deletion, and updates of both vertices and edges, and are related to pointer machines. The main result states that a function over graph-structures is computable in polynomial time if it is computed by a terminating program whose graph manipulation is ramified, provided all edges that are both created and read in a loop have the same label.


Polynomial Time Graph Structure Structural Induction Abstract State Machine Imperative Program 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Daniel Leivant
    • 1
  • Jean-Yves Marion
    • 2
  1. 1.Indiana UniversityUSA
  2. 2.LORIAUniversité de LorraineFrance

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