1–50 of 62 hits

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  1.  

    Invariance of the essential spectra of operator pencils

    Gernandt, Hannes / Moalla, Nedra / Philipp, Friedrich et al. | BASE | 2019
  2.  

    New lower bound for the distance to singularity of regular matrix pencils

    Berger, Thomas / Gernandt, Hannes / Trunk, Carsten et al. | BASE | 2017
  3.  

    Eigenvalue estimates for operators with finitely many negative squares

    Behrndt, Jussi / Möws, Roland / Trunk, Carsten | BASE | 2016
  4.  

    The gap distance to the set of singular matrix pencils

    Berger, Thomas / Gernandt, Hannes / Trunk, Carsten et al. | BASE | 2018
  5.  

    Spectral enclosures for a class of block operator matrices

    Giribet, Juan / Langer, Matthias / Martinez Peria, Francisco et al. | BASE | 2019
  6.  

    Coupling of definitizable operators in Krein spaces

    Derkach, Vladimir / Trunk, Carsten | BASE | 2017
  7.  

    An estimate on the non-real spectrum of a singular indefinite Sturm-Liouville operator

    Behrndt, Jussi / Gsell, Bernhard / Schmitz, Philipp et al. | BASE | 2017
  8.  

    A new method for network redesign via rank one updates

    Gernandt, Hannes / Krauße, Dominik / Sommer, Ralf et al. | BASE | 2017
  9.  

    Prevention of solidification cracking during pulsed laser beam welding

    Bergmann, Jean Pierre / Bielenin, Martin / Herzog, Roland A. et al. | BASE | 2017
  10.  

    On a class of non-Hermitian matrices with positive definite Schur complements

    Berger, Thomas / Giribet, Juan / Martínez Pería, Francisco et al. | BASE | 2018
  11.  

    Bounds on the non-real spectrum of a singular indefinite Sturm-Liouville operator on R

    Behrndt, Jussi / Schmitz, Philipp / Trunk, Carsten | BASE | 2016
  12.  

    Spectral bounds for singular indefinite Sturm-Liouville operators with L1-potentials

    Behrndt, Jussi / Schmitz, Philipp / Trunk, Carsten | BASE | 2017
  13.  

    The invertibility of 2x2 operator matrices

    Huang, Junjie / Sun, Junfeng / Chen, Alatancang et al. | BASE | 2014
  14.  

    The effect of finite rank perturbations on Jordan chains of linear operators

    Behrndt, Jussi / Leben, Leslie / Martinez Peria, Francisco et al. | BASE | 2014
  15.  

    The numerical range of non-negative operators in Krein spaces

    Philipp, Friedrich / Trunk, Carsten | BASE | 2012
  16.  

    Sharp eigenvalue estimates for rank one perturbations of nonnegative operators in Krein spaces

    Behrndt, Jussi / Leben, Leslie / Martínez Pería, Francisco et al. | BASE | 2013
  17.  

    The Byrnes-Isidori form for infinite-dimensional systems

    Ilchmann, Achim / Selig, Tilman / Trunk, Carsten | BASE | 2013
  18.  

    Frequency compensation for a class of DAE's arising in electrical circuits

    Hennig, Eckhard / Krauße, Dominik / Schäfer, Eric et al. | BASE | 2011
  19.  

    Bounds on the non-real spectrum of differential operators with indefinite weights

    Behrndt, Jussi / Philipp, Friedrich / Trunk, Carsten | BASE | 2012
  20.  

    Numerical range and quadratic numerical range for damped systems

    Jacob, Birgit / Tretter, Christiane / Trunk, Carsten et al. | BASE | 2017
  21.  

    Eigenvalue estimates for singular left-definite Sturm-Liouville operators

    Behrndt, Jussi / Möws, Roland / Trunk, Carsten | BASE | 2011
  22.  

    On the negative squares of a class of self-adjoint extensions in Krein spaces

    Behrndt, Jussi / Luger, Annemarie / Trunk, Carsten | BASE | 2010
  23.  

    A perturbation approach to differential operators with indefinite weights

    Behrndt, Jussi / Philipp, Friedrich / Trunk, Carsten | BASE | 2011
  24.  

    Spectrum of J-frame operators

    Giribet, Juan / Langer, Matthias / Leben, Leslie et al. | BASE | 2017
  25.  

    On a class of J-self-adjoint operators with empty resolvent set

    Kuzhel, Sergii / Trunk, Carsten | BASE | 2010
  26.  

    Linear relations and the Kronecker canonical form

    Berger, Thomas / Trunk, Carsten / Winkler, Henrik | BASE | 2015
  27.  

    Selfadjoint operators in S-spaces

    Philipp, Friedrich / Szafraniec, Franciszek Hugon / Trunk, Carsten | BASE | 2010
  28.  

    Non-real eigenvalues of singular indefinite Sturm-Liouville operators

    Behrndt, Jussi / Katatbeh, Qutaibeh / Trunk, Carsten | BASE | 2008
  29.  

    Eigenvalue estimates for singular left-definite Sturm-Liouville operators

    Behrndt, Jussi / Möws, Roland / Trunk, Carsten | BASE | 2014
  30.  

    Hyponormal and strongly hyponormal matrices in inner product spaces

    Henn, Mark-Alexander / Mehl, Christian / Trunk, Carsten | BASE | 2009
  31.  

    Small perturbation of selfadjoint and unitary operators in Krein spaces

    Azizov, Tomas Ya / Jonas, Peter / Trunk, Carsten | BASE | 2008
  32.  

    G-selfadjoint operators in Almost Pontryagin spaces

    Philipp, Friedrich / Trunk, Carsten | BASE | 2008
  33.  

    Compact and finite rank perturbations of linear relations in Hilbert spaces

    Azizov, Tomas Ya / Behrndt, Jussi / Jonas, Peter et al. | BASE | 2007
  34.  

    Spectralizable operators

    Strauss, Vladimir A. / Trunk, Carsten | BASE | 2007

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