The Cabot Professor of Mathematics sat down with Fifteen Minutes to discuss life lessons from mathematics, the challenges of ...
We study the fractional Laplacian (−Δ)σ/2 (Δ) σ / 2 on the n n -dimensional torus Tn 𝕋 n, n ≥ 1 n ≥ 1. First, we present a general extension problem that describes any fractional power Lγ L γ, γ> 0 ...