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DM
2008
82views more  DM 2008»
13 years 5 months ago
2-Binary trees: Bijections and related issues
A 2-binary tree is a binary rooted tree whose root is colored black and the other vertices are either black or white. We present several bijections concerning different types of 2...
Nancy S. S. Gu, Nelson Y. Li, Toufik Mansour
JCT
2006
77views more  JCT 2006»
13 years 4 months ago
There are uncountably many topological types of locally finite trees
Consider two locally finite rooted trees as equivalent if each of them is a topological minor of the other, with an embedding preserving the tree-order. Answering a question of va...
Lilian Matthiesen
PROCOMET
1998
13 years 6 months ago
Types for trees
We introduce a type assignment system which is parametric with respect to five families of trees obtained by evaluating -terms (B
Franco Barbanera, Mariangiola Dezani-Ciancaglini, ...
ICALP
2009
Springer
14 years 5 months ago
Decidability of Conjugacy of Tree-Shifts of Finite Type
A one-sided (resp. two-sided) shift of finite type of dimension one can be described as the set of infinite (resp. bi-infinite) sequences of consecutive edges in a finite-state aut...
Nathalie Aubrun, Marie-Pierre Béal
PLANX
2007
13 years 6 months ago
XPath Typing Using a Modal Logic with Converse for Finite Trees
We present an algorithm to solve XPath decision problems under regular tree type constraints and show its use to statically typecheck XPath queries. To this end, we prove the deci...
Pierre Genevès, Nabil Layaïda, Alan Sc...