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Main Authors: Hassairi, Abdelhanid, Letac, Gérard
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2512.19303
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author Hassairi, Abdelhanid
Letac, Gérard
author_facet Hassairi, Abdelhanid
Letac, Gérard
contents The classification of natural exponential families started with the paper \cite {Morri} where Carl Morris unifies six very familiar families by the fact that their variance functions are polynomials of degree less or equal to two. Extension of this classification to $\R^n$ and to degree three is the subject of this paper. Keywords: Actions of the group $GL(n+1,\R)$, classification of natural exponential families, multivariate Lagrange formula. variance functions.
format Preprint
id arxiv_https___arxiv_org_abs_2512_19303
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Simple Cubic Variance Functions on $\R^n$, Part one
Hassairi, Abdelhanid
Letac, Gérard
Statistics Theory
62E10
The classification of natural exponential families started with the paper \cite {Morri} where Carl Morris unifies six very familiar families by the fact that their variance functions are polynomials of degree less or equal to two. Extension of this classification to $\R^n$ and to degree three is the subject of this paper. Keywords: Actions of the group $GL(n+1,\R)$, classification of natural exponential families, multivariate Lagrange formula. variance functions.
title Simple Cubic Variance Functions on $\R^n$, Part one
topic Statistics Theory
62E10
url https://arxiv.org/abs/2512.19303