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Portugaliae Mathematica

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Volume 78, Issue 1, 2021

Courant-sharp property for Dirichlet eigenfunctions on the Möbius strip
Pierre Bérard, Bernard Helffer and Rola Kiwan
pp. 1–41
Abstract | Full-Text PDF (3488 KB) | Metadata

Stability conditions for reversible and partially integrable systems
Claudio A. Buzzi, Luci Any F. Roberto and Marco A. Teixeira
pp. 43–63
Abstract | Full-Text PDF (202 KB) | Metadata

The cost of approximate controllability of heat equation with general dynamical boundary conditions
Idriss Boutaayamou, Salah-Eddine Chorfi, Lahcen Maniar and Omar Oukdach
pp. 65–99
Abstract | Full-Text PDF (248 KB) | Metadata

On the asymptotic behavior of high order moments for a family of Schrödinger equations
Nikolay Tzvetkov and Nicola Visciglia
pp. 101–128
Abstract | Full-Text PDF (185 KB) | Metadata