4 papers
A -step generalization of the Q-order of convergence
Gabriel Jarry-Bolduc
The notion of Q-order convergence is arguably the most important tool for describing the asymptotic behavior of a convergent sequence. Loosely speaking, it captures the``speed''of…
The cosine measure of a function at a point
Warren Hare, Gabriel Jarry-Bolduc, Chayne Planiden
The cosine measure of a set of vectors in measures how well the set covers all directions in . It identifies the direction furthest, in angle, from the…
An algorithm to exactly compute minimal upper bounds in the Loewner order
Adam Humeniuk, Gabriel Jarry-Bolduc, Patrick Pascua +1
The Loewner order on Hermitian matrices is a partial order that compares matrices in terms of positive semidefiniteness. The Loewner order plays a key role in many fields such as o…
Using generalized simplex methods to approximate derivatives
Gabriel Jarry-Bolduc, Chayne Planiden
This paper presents two methods for approximating a proper subset of the entries of a Hessian using only function evaluations. These approximations are obtained using the technique…