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The characteristic imset polytope for diagnosis models
graphical model characteristic imset polytope diagnosis model Bipartite graph
2012/6/15
In 2010, M. Studen\'y, R. Hemmecke, and Linder explored a new algebraic description of graphical models, characteristic imsets. Compare with standard imsets, characteristic imsets have several advanta...
On optimal investment for a behavioural investor in multiperiod incomplete market models
Optimisation existence and well-posedness in behavioral finance distorsion Choquet integral
2011/9/30
Abstract: We provide easily verifiable conditions for the well-posedness of the optimal investment problem for a behavioral investor in an incomplete discrete-time multiperiod financial market model, ...
The largest eigenvalue of real symmetric, Hermitian and Hermitian self-dual random matrix models with rank one external source, part I
largest eigenvalue of real symmetric Hermitian and Hermitian self-dual random matrix rank one external source
2011/2/22
We consider the limiting location and limiting distribution of the largest eigenvalue in real
symmetric (β = 1), Hermitian (β = 2), and Hermitian self-dual (β = 4) random matrix models
with rank 1 e...
Canonical Models For Bi-Isometries
Bi-isometry characteristic function functional model pivotal opera-tor similarity
2011/1/18
A canonical model, analogous to the one for contraction operators,is introduced for bi-isometries, two commuting isometries on a Hilbert space.This model involes a contractive analytic operator-valued...
A method for constructing random matrix models of disordered bosons
random matrix models disordered bosons
2011/2/22
Random matrix models of disordered bosons consist of matrices in the Lie algebra g = spn(R). Assuming dynamical stability, their eigenvalues are required to be purely imaginary.
An $f$-divergence approach for optimal portfolios in exponential Levy models
f-divergence exponential Levy models optimal portfolio
2011/1/21
We present a unified approach to get explicit formulas for utility maximising strategies in Exponential Levy models. This approach is related to f-divergence minimal martingale measures and based on a...
Loop models, random matrices and planar algebras
Loop models random matrices planar algebras
2011/1/17
We define matrix models that converge to the generating functions of a wide variety of loop models with fugacity taken in sets with an accumu-lation point. The latter can also be seen as moments of a ...