ELibM Journals • ELibM Home • EMIS Home • EMIS Mirrors

  EMIS Electronic Library of Mathematics (ELibM)
The Open Access Repository of Mathematics
  EMIS ELibM Electronic Journals

JOURNAL OF
ALGEBRAIC
COMBINATORICS

  Editors-in-chief: C. A. Athanasiadis, T. Lam, A. Munemasa, H. Van Maldeghem
ISSN 0925-9899 (print) • ISSN 1572-9192 (electronic)
 

Dissimilarity maps on trees and the representation theory of SL m(\Bbb C)

Christopher Manon

DOI: 10.1007/s10801-010-0241-9

Abstract

We prove that m-dissimilarity vectors of weighted trees are points on the tropical Grassmannian, as conjecture by Cools in response to a question of Sturmfels and Pachter. We accomplish this by relating m-dissimilarity vectors to the representation theory of SL m (\Bbb C).

Pages: 199–213

Keywords: keywords tropical geometry; representation theory

Full Text: PDF

References

1. Alexeev, V., Brion, M.: Toric degenerations of spherical varieties. Sel. Math. 10(4), 453-478 (2005)
2. Bocci, C., Cools, F.: A tropical interpretation of m-dissimilarity maps. Appl. Math. Comput. 212(2), 349-356 (2009)
3. Cools, F.: On the relation between weighted trees and tropical Grassmannians. J. Symb. Comput. 44(8), 1079-1086 (2009)
4. Dolgachev, I.: Lectures on Invariant Theory. London Mathematical Society Lecture Note Series, vol.
296. Cambridge University Press, Cambridge (2003)
5. Fulton, W., Harris, J.: Representation Theory. Graduate Texts in Mathematics, vol.
129. Springer, Berlin (1991)
6. Giraldo, B.I.: Dissimilarity vectors of trees are contained in the tropical Grassmannian. Electron. J. Comb. 17(1) (2010)
7. Grosshans, F.D.: Algebraic Homogeneous Spaces and Invariant Theory. Springer Lecture Notes, vol.
1673. Springer, Berlin (1997)
8. Manon, C.: The algebra of conformal blocks.
9. Manon, C.: Graded valuations and tropical geometry.




© 1992–2009 Journal of Algebraic Combinatorics
© 2012 FIZ Karlsruhe / Zentralblatt MATH for the EMIS Electronic Edition