Regional controllability of semilinear degenerate parabolic equations in bounded domains

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Carleman estimates for degenerate parabolic equations with first order terms and applications (2010, background): “We also extend the results in [3,4] where the regional null controllability of equations of the form of (4) is considered.”
Carleman estimates and observability inequalities for parabolic equations with interior degeneracy (2012, background): “A first example is their application to global null controllability (see [1], [2], [3], [4], [11], [12], [13], [18], [21], [22], [27], [28], [26], [29], [34] and the references therein): for all T > 0 and for all initial data u0 ∈ L(2)((0, T )× (0, 1)) there is a suitable control h ∈ L(2)((0, T )× (”
Controllability results for a class of one-dimensional degenerate parabolic problems in nondivergence form (2008, unknown): “In [5] and [6] the regional null controllability of   ut − (a(x)ux)x = f(t, x)χω(x), (t, x) ∈ (0, T)× (0, 1), u(t, 0) = u(t, 1) = 0, t ∈ (0, T), u(0, x) = u0(x), x ∈ (0, 1), (1.”