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INHALTE

Refereed Publications

Refereed Publications

 

  1. Florian Leben, Carsten Trunk
    Operator based approach to PT-symmetric problems on a wedge-shaped contour;
    eingereicht    ;

  2. Junjie Huang, Junfeng Sun, Alatancang Chen, Carsten Trunk
    The invertibility of 2x2 operator matrices; pdf-file
    erscheint in Math. Nachr.;

  3. Jussi Behrndt, Philipp Schmitz, Carsten Trunk,
    Spectral bounds for indefinite singular Sturm-Liouville operators with uniformly locally integrable potentials;
    eingereicht

  4. Thomas Berger, Juan Giribet, Francisco Martinez Peria und Carsten Trunk
    On a class of non-Hermitian matrices with positive definite Schur complements;
    to appear in Proc. Amer. Math. Soc.

  5. Leslie Leben, Francisco Martinez Peria, Friedrich Philipp, Carsten Trunk and Henrik Winkler
    Finite rank perturbations of linear relations and singular matrix pencils;
    eingereicht

  6. Hannes Gernandt, and Carsten Trunk
    Locally finite extensions and Gesztesy-Seba realizations for the Dirac operator on a metric graph
    eingereicht

  7. Thomas Berger, Hannes Gernandt, Carsten Trunk, Henrik Winkler, and Michał Wojtylak
    The gap distance to the set of singular matrix pencils,
    Linear Algebra Appl. 564 (2019), 28-57.

  8. Jussi Behrndt, Philipp Schmitz, Carsten Trunk,
    Spectral bounds for singular indefinite Sturm-Liouville operators with L^1-potentials;
    Proc. Amer. Math. Soc. 146 (2018), 3935-3942;

  9. Birgit Jacob, Christiane Tretter, Carsten Trunk, Hendrik Vogt,
    Systems with strong damping and their spectra;
    Math. Methods Appl. Sci. 41 (2018), 6546-6573.

  10. Juan Giribet, Matthias Langer, Leslie Leben, Alejandra Maestripieri, Francisco Martinez Peria, Carsten Trunk
    Spectrum of J-frame Operators, Opusc. Math. 38 (2018) 623-649;

  11. Vladimir Derkach, Carsten Trunk,
    Coupling of Definitizable Operators in Krein Spaces;
    NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS 8 (2017) 166–179;

  12. Andrei .A. Shkalikov, C. Trunk
    On stability of closeness and self-adjointness for 2x2 operator matrices,
    Math. Notes 100 (2016), 870-875;

  13. Jussi Behrndt, Roland Möws, Carsten Trunk
    Eigenvalue estimates for operators with finitely many negative squares; pdf-file
    Opusc. Math. 36 (2016), 717-734;

  14. Hannes Gernandt, Carsten Trunk
    Eigenvalue placement for regular matrix pencils with rank one perturbations; pdf-file
    SIAM. J. Matrix Anal. Appl. 38 (2017), 134-154http://dx.doi.org/10.1137/16M1066877;

  15. Thomas Berger, Carsten Trunk, Henrik Winkler
    Linear relations and the Kronecker canonical form; pdf-file
    Linear Algebra Appl. 488 (2016), 13-44;

  16. Birgit Jacob, Matthias Langer, Carsten Trunk
    Variational principles for self-adjoint operator functions arising from second-order systems; pdf-file
    Operators and Matrices 10 (2016), 501-531;

  17. Jussi Behrndt, Leslie Leben, Francisco Martinez Peria, Carsten Trunk
    The effect of finite rank perturbations on Jordan chains of linear operators;pdf-file
    Linear Algebra Appl. Vol. 479 (2015), 118-130;

  18. Achim Ilchmann, Tilman Selig, Carsten Trunk
    The Byrnes-Isidori form for infinite-dimensional systems; pdf-file
    SIAM J. on Control Optim. Vol. 54 (2016), 1504-1534;
     
  19. Jussi Behrndt, Leslie Leben, Francisco Martinez Peria, Roland Möws, Carsten Trunk
    Sharp eigenvalue estimates for rank one perturbations of nonnegative operators in Krein spaces; [pdf-file]
    J.  Math.  Anal.  Appl.  Vol. 439 (2016), 864-895;

  20. Friedrich Philipp, Carsten Trunk
    Spectral points of type pi_+ and type pi_- of closed operators in indefinite inner product spaces; [pdf-file]
    Operators and Matrices Vol. 9 (2015), 481-506;

  21. Jussi Behrndt, Roland Möws, Carsten Trunk
    On finite Rank Perturbations of Selfadjoint Operators in Krein Spaces and Eigenvalues in Spectral Gaps; [pdf-file]
    Complex Anal. Oper. Theory Vol. 8 (2013), 925-936;

  22. Jussi Behrndt, Friedrich Philipp, Carsten Trunk 
      Bounds on the non-real spectrum of differential operators with indefinite weights; [pdf-file]
    Math. Ann. Vol. 357 (2013), 185-213;

  23. Jussi Behrndt, Annemarie Luger, Carsten Trunk 
     On the negative squares of a class of self-adjoint extensions in Krein spaces; [pdf-file] 
    Math. Nachr. Vol. 286 (2013), 118-148;

  24. Friedrich Philipp, Carsten Trunk
    The numerical range of non-negative operators in Krein spaces; [pdf-file]
    Linear Algebra Appl. Vol. 438 (2013),  2542–2556;

  25. Friedrich Philipp, Vladimir Strauss, Carsten Trunk
     Local spectral theory for normal operators in Krein spaces; [pdf-file]
    Math. Nachr. Vol. 286 (2013), 32-58;

  26. Tomas Azizov, Carsten Trunk
    PT Symmetric, Hermitian and P-Self-Adjoint operators related to potentials in PT Quantum Mechanics; [pdf-file]
    J. Math. Phys. Vol. 53 (2012), 012109;

  27. Jussi Behrndt, Roland Möws, Carsten Trunk 
     Eigenvalue estimates for singular left-definite Sturm-Liouville operators; [pdf-file] 
    J. Spectr. Theory Vol. 1 (2011), 327-347;

  28. Sergii Kuzhel, Carsten Trunk
    On a class of J-self-adjoint operators with empty resolvent set; [pdf-file]
    J. Math. Anal. Appl. Vol. 379 (2011), 272–289;
     
  29. Friedrich Philipp, Franciszek Hugon Szafraniec, Carsten Trunk
     Selfadjoint operators in S-Spaces; [pdf-file]
    J. Funct. Anal. Vol. 260 (2011), 1045-1059; 
     
  30. Tomas Azizov, Jussi Behrndt, Peter Jonas, Carsten Trunk
    Spectral points of definite type and type pi for linear operators and relations in Krein spaces; [pdf-file] 
    J. London Math. Soc. Vol. 83 (2011), 768-–788.
     
  31. Tomas Azizov, Peter Jonas, Carsten Trunk
    Small perturbation of selfadjoint and unitary operators in Krein spaces; [pdf-file]
    J. Operator Theory Vol. 64 (2010), 401-416; 
     
  32. Tomas Azizov, Carsten Trunk
    On domains of PT Symmetric operators related to -y''(x) + (-1)^n x^{2n}y(x); [pdf-file]
     J. Phys. A: Math. Theor. Vol. 43 (2010), 175303 
     
  33. Mark-Alexander Henn, Christian Mehl, Carsten Trunk
     Hyponormal and strongly Hyponormal matrices in Inner Product Spaces;
    Linear Algebra Appl. Vol. 433 (2010), 1055-1076; [pdf-file] 
     
  34.  Carsten Trunk 
     Analyticity of semigroups related to a class of block operator matrices; [pdf-file]  
     Operator Theory: Advances and Applications Vol. 195 (2009), 257-271. 
     
  35. Jussi Behrndt, Qutaibeh Katatbeh, Carsten Trunk 
     Non-Real eigenvalues of singular indefinite Sturm-Liouville operators;
     Proc. Amer. Math. Soc. Vol. 137 (2009), 3797-3806; [pdf-file]  
     
  36. Birgit Jacob, Carsten Trunk 
    Spectrum and analyticity of semigroups arising in elasticity theory and hydromechanics; [pdf-file]
    Semigroup Forum Vol. 79 (2009), 79-100.

  37. Friedrich Philipp, Carsten Trunk 
    G-Selfadjoint operators in Almost Pontryagin spaces; [pdf-file]
    Operator Theory: Advances and Applications Vol. 188 (2009) 207-236. 
     
  38. Tomas Azizov, Jussi Behrndt, Peter Jonas, Carsten Trunk
    Compact and finite rank perturbations of linear relations in Hilbert spaces; [pdf-file]
    Integral Equations Operator Theory Vol. 63 (2009) 151-163. 
     
  39. Tomas Azizov, Jussi Behrndt, Friedrich Philipp, Carsten Trunk
     On domains of powers of linear operators and finite rank perturbations; [pdf-file]
     Operator Theory: Advances and Applications Vol. 188 (2009), 31-36.

  40. Illya Karabash, Carsten Trunk
     Spectral properties of singular Sturm-Liouville operators; [pdf-file]
     Proc. R. Soc. Edinb. Sect. A. Vol. 139 (2009), 483-503.

  41. Vladimir Strauss, Carsten Trunk
     Spectralizable operators; [pdf-file]
     Integral Equations Operator Theory Vol. 61 (2008) 413-422.

  42. Jussi Behrndt, Qutaibeh Katatbeh, Carsten Trunk
     Accumulation of complex eigenvalues of indefinite Sturm-Liouville operators; [pdf-file]
    J. Phys. A: Math. Theor. Vol. 41 (2008) 244003.

  43. Birgit Jacob, Carsten Trunk, Monika Winklmeier
    Analyticity and Riesz basis property of semigroups associated to damped vibrations;
     Journal of Evolution Equations Vol. 8 (2008), 263-281.

  44. Carsten Trunk
     Spectral theory for operator matrices related to models in mechanics;
     Math. Notes, Vol. 83 (2008), 843-850.

  45. Tomas Azizov, Jussi Behrndt, Carsten Trunk
     On finite rank perturbations of definitizable operators;
     J. Math. Anal. Appl. Vol. 339 (2008), 1161-1168. 
     
  46. Birgit Jacob, Kirsten Morris, Carsten Trunk 
     Minimum-Phase infinite-dimensional second-order systems;
     IEEE Transactions on Automatic Control Vol. 52 (2007), 1654-1665.

  47. Peter Jonas, Carsten Trunk
     A Sturm-Liouville problem depending rationally on the eigenvalue parameter;
     Math. Nachr. Vol. 280 (2007), 1709-1726.

  48. Jussi Behrndt, Carsten Trunk
     On the negative squares of indefinite Sturm-Liouville operators;
     J. Differential Equations, Vol. 238 (2007), 491-519; 
     
  49. Birgit Jacob, Carsten Trunk
     Location of the spectrum of operator matrices which are associated to second order equations;
     Operators and Matrices, Vol. 1 (2007), 45-60;

  50. Christian Mehl, Carsten Trunk
     The adjoint of matrices in degenerate indefinite inner product spaces;
     Operator Theory: Advances and Applications Vol. 175 (2007), 193-209; 
     
  51. Jussi Behrndt, Annemarie Luger, Carsten Trunk
     Generalized resolvents of a class of symmetric operators in Krein spaces.
     Operator Theory: Advances and Applications Vol. 175 (2007), 13-33;

  52. Jussi Behrndt, Friedrich Philipp, Carsten Trunk
     Properties of the spectrum of type pi+ and type pi- of self-adjoint operators in Krein spaces;
     Methods Funct. Anal. Topology Vol. 12 (2006), 326-340; 
     
  53. Jussi Behrndt, Carsten Trunk
     Sturm-Liouville operators with indefinite weight functions and eigenvalue depending boundary conditions;
     J. Differential Equations Vol. 222 (2006), 297-324; 
     
  54.  Tomas Ya. Azizov, Peter Jonas, Carsten Trunk
     Spectral points of type $pi_{+}$ and $pi_{-}$ of self-adjoint operators in Krein spaces.
     J. Funct. Anal. Vol. 226 (2005), 114-137; 
     
  55.  Peter Jonas, Carsten Trunk
     On a class of analytic operator functions and their linearizations.
     Math. Nachr. Vol. 243 (2002), 92-133.