Displaying similar documents to “Conservative polynomials and yet another action of Gal ( ¯ / ) on plane trees”

Hubbard trees

Alfredo Poirier (2010)

Fundamenta Mathematicae

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We provide a full classification of postcritically finite polynomials as dynamical systems by means of Hubbard trees. The information encoded in these objects is solid enough to allow us recover all the relevant statical and dynamical aspects of the corresponding Julia sets.

Distances between rooted trees

Bohdan Zelinka (1991)

Mathematica Bohemica

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Two types of a distance between isomorphism classes of graphs are adapted for rooted trees.

The triangles method to build X -trees from incomplete distance matrices

Alain Guénoche, Bruno Leclerc (2001)

RAIRO - Operations Research - Recherche Opérationnelle

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A method to infer X -trees (valued trees having X as set of leaves) from incomplete distance arrays (where some entries are uncertain or unknown) is described. It allows us to build an unrooted tree using only 2 n -3 distance values between the n elements of X , if they fulfill some explicit conditions. This construction is based on the mapping between X -tree and a weighted generalized 2-tree spanning X .