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Operations research, linear programming, control theory, systems theory, optimal control, game theory

3 votes
1 answer
181 views

Eigenvalues of Laplace operator and Schrödinger operator

When reading the paper Control for Schrödinger operators on tori by N.Burq and M.Zworski (Math. Res. Lett., 19(2):309–324, 2012), an inequality confused me: Define the flat torus $\mathbb{T}^2=\mathbb …
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0 votes
0 answers
44 views

Haraux's article request

I'm trying to find the article "Haraux, A., Séries lacunaires et contrôle semi-interne des vibrations d'une plaque rectangulaire., J. Math. Pures Appl. (9)68(1989), no.4, 457–465." I could find the b …
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