2 papers
math.NA2026
Uncertainty quantification for stationary and time-dependent PDEs subject to Gevrey regular random domain deformations
Ana Djurdjevac, Vesa Kaarnioja, Claudia Schillings +1
We study uncertainty quantification for partial differential equations subject to domain uncertainty. We parameterize the random domain using the model recently considered by Chern…
math.CO2025
New upper and lower bounds on the smallest singular values of nonsingular lower triangular -matrices
Vesa Kaarnioja, André-Alexander Zepernick
Let denote the set of all nonsingular lower triangular -matrices. Hong and Loewy (2004) introduced the number sequence $$ c_n=\min\{λ\midλ~\text{is an ei…