On the Letac-Massam Conjecture on cones QAn

Piotr Graczyk, Hideyuki Ishi, Salha Mamane, Hiroyuki Ochiai

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1 Citation (Scopus)


We prove, for graphical models for nearest neighbour interactions, a conjecture stated by Letac and Massam in 2007. Our result is important in the analysis of Wishart distributions on cones related to graphical models and in its statistical applications.

Original languageEnglish
Pages (from-to)16-21
Number of pages6
JournalProceedings of the Japan Academy Series A: Mathematical Sciences
Issue number3
Publication statusPublished - Mar 1 2017

All Science Journal Classification (ASJC) codes

  • Mathematics(all)


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