activity
20102026
most citedLarge-time asymptotics, vanishing viscosity and numerics for 1-D scalar conservation laws

19 citations · 63 across the 30 of their papers we have counts for

collaborators

35 papers

math.NA2026

Galerkin Approximation of the Fractional Hardy Constant

Andreea Dima, Liviu I. Ignat

We establish sharp estimates for the discrete optimal constant of the fractional Hardy Inequality in dimension , with fractional exponent $s\in \left(0,\min\left\{1,\frac{…

math.OC2026

Optimal Investment with Switching Preferences

Yu-Jui Huang, Liviu Ignat, Traian A. Pirvu +1

Major life events can significantly increase individuals' risk aversion over a sustained period of time, as empirical studies reveal. How such an event-triggered shift of risk pref…

math.NA2026

Galerkin Approximation of the Fractional Sobolev Constant

Andreea Dima, Liviu I. Ignat

We establish sharp estimates for the discrete optimal constant of the fractional Sobolev inequality in dimension , with fractional exponent . The c…

math.NA2025

Sharp numerical approximation of the Hardy constant

Liviu I. Ignat, Enrique Zuazua

We study the finite element approximation of the best constant in the classical Hardy inequality over bounded domains containing the origin in , for .…

math.NA2025

Optimal convergence rates for the finite element approximation of the Sobolev constant

Liviu I. Ignat, Enrique Zuazua

We establish optimal convergence rates for the continuous piecewise affine finite element approximation of the Sobolev constant in arbitrary dimensions N\geq 2 and for Lebesgue exp…

math.NA2023

Finite element approximation of the Hardy constant

Francesco Della Pietra, Giovanni Fantuzzi, Liviu I. Ignat +3

We consider finite element approximations to the optimal constant for the Hardy inequality with exponent in bounded domains of dimension or . For finite eleme…