Elsewhere: [math people] [google] [google scholar]

- Backward uniqueness of semigroups arising in coupled partial differential equations systems of structural acoustics. Advances in Differential Equations 2004. 9:53-84 .
- The operator $B^*L$ for the wave equation with Dirichlet control. Abstract and Applied Analysis 2004. 2004:625-634 .
- Optimal estimates of norms of fast controls in exact null controllability of two non-classical abstract parabolic systems. Advances in Differential Equations 2003. 8:189-229 .
- $L_2(\Sigma)$-regularity of the boundary to boundary operator $B^{*}L$ for hyperbolic and Petrowski PDEs. Abstract and Applied Analysis 2003. 2003:1061-1139 .
- Singular estimates and uniform stability of coupled systems of hyperbolic/parabolic PDEs. Abstract and Applied Analysis 2002. 7:169-237 .
- Sharp Regularity Theory for Elastic and Thermoelastic Kirchoff Equations with Free Boundary Conditions. Rocky Mountain Journal of Mathematics 2000. 30:981-1024 .
- Sharp regularity of a coupled system of a wave and a Kirchoff equation with point control arising in noise reduction. Differential Integral Equations 1999. 12:101-118 .
- Uniform stabilization of spherical shells by boundary dissipation. Advances in Differential Equations 1996. 1:635-674 .
- An abstract setting for differential Riccati equations in optimal control problems for hyperbolic/Petrowski-type P.D.E.′s with boundary control and slightly smoothing observation. Abstract and Applied Analysis 1996. 1:435-484 .
- Optimal boundary control and new Riccati equations for highly damped second-order equations. Differential Integral Equations 1994. 7:1109-1144 .
- Optimal boundary control and new Riccati equations for highly damped second-order equations. Differential Integral Equations 1994. 7:1109-1144 .
- Interior and boundary regularity of the wave equation with interior point control. Differential Integral Equations 1993. 6:111-129 .
- Optimal regularity, exact controllability and uniform stabilization of Schrödinger equations with Dirichlet control. Differential Integral Equations 1992. 5:521-535 .
- Lack of exact controllability for wave and plate equations with finitely many boundary controls. Differential Integral Equations 1991. 4:683-705 .
- Uniform stabilization of the Euler-Bernoulli equation with feedback operator only in the Neumann boundary condition. Differential Integral Equations 1991. 4:277-292 .
- Finite rank, relatively bounded perturbations of semi-groups generators. III. A sharp result on the lack of uniform stabilization. Differential Integral Equations 1990. 3:503-522 .