It is shown how to define the canonic formulation for orthogonal models associated to commutative Jordan algebras. This canonic formulation is then used to carry out inference. The case of models with commutative orthogonal block structures is stressed out.

In this paper we will examine the relationship between modularity in the lattices of subalgebras of A and A(+), for A an associative algebra over an algebraically closed field. To this aim we will construct an ideal which measures the modularity of an algebra (not necessarily associative) in paragraph 1, examine modular associative algebras in paragraph 2, and prove in paragraph 3 that the ideal constructed in paragraph 1 coincides for A and A(+). We will also examine some properties of the ideal...

Dans un travail précédent nous avons défini et étudié la fonction zêta associée à une représentation d’une algèbre de Jordan euclidienne déployée et à un réseau dans l’espace de la représentation. Nous avons démontré la convergence dans un demi-plan, établi l’existence d’un prolongement méromorphe et d’une équation fonctionnelle scalaire. Cette fonction est une généralisation de la fonction zêta de Koecher; elle est donnée dans son domaine de convergence, par une série qui somme sur certains éléments...

Mixed models will be considered using the Commutative Jordan Algebra of Symmetric matrices approach. Prime basis factorial models will now be considered in the framework provided by Commutative Jordan Algebra of Symmetric matrices. This will enable to obtain fractional replicates when the number of levels is neither a prime or a power of a prime. We present an application to the effect of lidocaine, at an enzymatic level, on the heart muscle of beagle dogs

Let ${ℛ}_{\alpha }$ be the Riesz distribution on a simple Euclidean Jordan algebra, parametrized by $\alpha \in ℂ$. I give an elementary proof of the necessary and sufficient condition for ${ℛ}_{\alpha }$ to be a locally finite complex measure (= complex Radon measure).

If the space $𝒬$ of quadratic forms in ${ℝ}^n$ is splitted in a direct sum ${𝒬}_1\oplus ...\oplus {𝒬}_k$ and if $X$ and $Y$ are independent random variables of ${ℝ}^n$, assume that there exist a real number $a$ such that $E\left(X\right|X+Y)=a(X+Y)$ and real distinct numbers $b_1,...,b_k$ such that $E\left(q\left(X\right)\right|X+Y)=b_{i}q(X+Y)$ for any $q$ in ${𝒬}_i.$ We prove that this happens only when $k=2$, when ${ℝ}^n$ can be structured in a Euclidean Jordan algebra and when $X$ and $Y$ have Wishart distributions corresponding to this structure.

This work is about a generalization of Kœcher’s zeta function. Let $V$ be an Euclidean simple Jordan algebra of dimension $n$ and rank $m$, $E$ an Euclidean space of dimension $N$, $\varphi$ a regular self-adjoint representation of $V$ in $E$, $Q$ the quadratic form associated to $\varphi$, $\Omega$ the symmetric cone associated to $V$ and $G\left(\Omega \right)$ its automorphism group$$G\left(\Omega \right)=\{g\in GL(V\left)\right|g\left(\Omega \right)=\Omega \}.$$($H_1$) Assume that $V$ and $E$ have $\mathbf{Q}$-structures $V_{\mathbf{Q}}$ and $E_{\mathbf{Q}}$ respectively and $\varphi$ is defined over $\mathbf{Q}$. Let $L$ be a lattice in $E_{\mathbf{Q}}$. The zeta series associated to $\varphi$ and $L$ is defined by$${\zeta }_L\left(s\right)=\sum _{l\in {\Gamma }_{\circ }\setminus L^{\text{'}}}\left[\det \right(Q\left(l\right)){]}^{-s},\forall s\in \mathbf{C}$$where $L^{\text{'}}=\{l\in L|\det \left(Q\right(l\left)\right)\ne 0\}$,...