# American Institute of Mathematical Sciences

November  2014, 8(4): 1139-1150. doi: 10.3934/ipi.2014.8.1139

## Increasing stability for determining the potential in the Schrödinger equation with attenuation from the Dirichlet-to-Neumann map

 1 Department of Mathematics, Statistics, and Physics, Wichita State University, Wichita, KS 67260-0033 2 Institute of Applied Mathematics, NCTS (Taipei), National Taiwan University, Taipei 106, Taiwan

Received  September 2013 Revised  January 2014 Published  November 2014

We derive some bounds which can be viewed as an evidence of increasing stability in the problem of recovering the potential coefficient in the Schrödinger equation from the Dirichlet-to-Neumann map in the presence of attenuation, when energy level/frequency is growing. These bounds hold under certain a-priori regularity constraints on the unknown coefficient. Proofs use complex and bounded complex geometrical optics solutions.
Citation: Victor Isakov, Jenn-Nan Wang. Increasing stability for determining the potential in the Schrödinger equation with attenuation from the Dirichlet-to-Neumann map. Inverse Problems & Imaging, 2014, 8 (4) : 1139-1150. doi: 10.3934/ipi.2014.8.1139
##### References:
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##### References:
 [1] G. Alessandrini, Stable Determination of Conductivity by Boundary Measurements, Appl. Anal., 27 (1988), 153-172. doi: 10.1080/00036818808839730.  Google Scholar [2] G. Alessandrini and M. Di Christo, Stable determination of an inclusion by boundary measurements, SIAM J. Math. Anal., 37 (2005), 200-217. doi: 10.1137/S003614100444191X.  Google Scholar [3] G. Bao, S. Hou and P. Li, Inverse scattering by a continuation method with initial guesses from a direct imaging algorithm, J. Comput. Phys., 227 (2007), 755-762. doi: 10.1016/j.jcp.2007.08.020.  Google Scholar [4] A. L. Bukhgeim, Recovering a potential from Cauchy data in the two-dimensional case, J. Inv. Ill-Posed Probl., 16 (2008), 19-33. doi: 10.1515/jiip.2008.002.  Google Scholar [5] I. Bushuyev, Stability of recovery of the near-field wave from the scattering amplitude, Inverse Problems, 12 (1996), 859-867. doi: 10.1088/0266-5611/12/6/004.  Google Scholar [6] P. Hähner, A periodic Faddeev-type solution operator, J. Diff. Equat., 128 (1996), 300-308. doi: 10.1006/jdeq.1996.0096.  Google Scholar [7] L. Hörmander, Linear Partial Differential Operators, Springer-Verlag, Berlin, 1976.  Google Scholar [8] T. Hrycak and V. Isakov, Increased stability in the continuation of solutions to the Helmholtz equation, Inverse Problems, 20 (2004), 697-712. doi: 10.1088/0266-5611/20/3/004.  Google Scholar [9] M. Isaev and R. Novikov, Energy and regularity dependent stability estimates for the Gelfand's inverse problem in multi dimensions, J. Inverse Ill-Posed Problems, 20 (2012), 313-325. doi: 10.1515/jip-2012-0024.  Google Scholar [10] V. Isakov, Inverse Problems for Partial Differential Equations, Springer-Verlag, New York, 2006.  Google Scholar [11] V. Isakov, Increased stability in the continuation for the Helmholtz equation with variable coefficient, Contemp. Math., AMS, 426 (2007), 255-269. doi: 10.1090/conm/426/08192.  Google Scholar [12] V. Isakov, Increasing stability for the Schrödinger potential from the Dirichlet-to-Neumann map, Discr. Cont. Dyn. Syst.-S, 4 (2011), 631-640. doi: 10.3934/dcdss.2011.4.631.  Google Scholar [13] V. Isakov and S. Kindermann, Regions of stability in the Cauchy problem for the Helmholtz equation, Methods Appl. of Anal., 18 (2011), 1-29. doi: 10.4310/MAA.2011.v18.n1.a1.  Google Scholar [14] V. Isakov, S. Nagayasu, G. Uhlmann and J. N. Wang, Increasing stability of the inverse boundary value problem for the Schrödinger equation, Contemp. Math.,AMS, 615 (2014), 131-143. Google Scholar [15] F. John, Continuous dependence on data for solutions of partial differential equations with a prescribed bound, Comm. Pure Appl. Math., 13 (1960), 551-585. doi: 10.1002/cpa.3160130402.  Google Scholar [16] N. Mandache, Exponential instability in an inverse problem for the Schrödinger equation, Inverse Problems, 17 (2001), 1435-1444. doi: 10.1088/0266-5611/17/5/313.  Google Scholar [17] S. Nagayasu, G. Uhlmann and J. N. Wang, Increasing stability of the inverse boundary value problem for the acoustic equation, Inverse Problems, 29 (2013), 025012, 11 pp. doi: 10.1088/0266-5611/29/2/025012.  Google Scholar [18] F. Natterer and F. Wübbeling, Marching schemes for inverse acoustic scattering problem, Numer. Math., 100 (2005), 697-710. doi: 10.1007/s00211-004-0580-3.  Google Scholar [19] V. Palamodov, Stability in diffraction tomography and a nonlinear "basic theorem", J. d' Anal. Math., 91 (2003), 247-268. doi: 10.1007/BF02788790.  Google Scholar [20] J. Sylvester and G. Uhlmann, Global uniqueness theorem for an inverse boundary value problem, Ann. Math., 125 (1987), 153-169. doi: 10.2307/1971291.  Google Scholar [21] J. Sylvester and G. Uhlmann, Inverse boundary value problems at the boundary-continuous dependence, Comm. Pure Appl. Math., 41 (1988), 197-221. doi: 10.1002/cpa.3160410205.  Google Scholar
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