Showing 2018Show all
2 papers · 1 filter
math-ph2018
Multivariate orthogonal polynomials: quantum decomposition, deficiency rank and support of measure
Ameur Dhahri, Nobuaki Obata, Hyun Jae Yoo
In this paper we investigate the multivariate orthogonal polynomials based on the theory of interacting Fock spaces. Our framework is on the same stream line of the recent paper by…
math.CO2018
On Quadratic Embedding Constants of Star Product Graphs
Wojciech Młotkowski, Nobuaki Obata
A connected graph is of QE class if it admits a quadratic embedding in a Hilbert space, or equivalently if the distance matrix is conditionally negative definite, or equivalent…