Sum rules and constraints on passive systems A Bernland, A Luger, M Gustafsson Journal of Physics A: Mathematical and Theoretical 44 (14), 145205, 2011 | 87 | 2011 |
A factorization result for generalized Nevanlinna functions of the classNk A Dijksma, H Langer, A Luger, Y Shondin Integral Equations and Operator Theory 36 (1), 121-125, 2000 | 78 | 2000 |
An operator theoretic interpretation of the generalized Titchmarsh-Weyl coefficient for a singular Sturm-Liouville problem P Kurasov, A Luger Mathematical Physics, Analysis and Geometry 14 (2), 115-151, 2011 | 48 | 2011 |
On the number of negative eigenvalues of the Laplacian on a metric graph J Behrndt, A Luger Journal of Physics A: Mathematical and Theoretical 43 (47), 474006, 2010 | 39 | 2010 |
A factorization of regular generalized Nevanlinna functions A Luger Integral Equations and Operator Theory 43 (3), 326-345, 2002 | 36 | 2002 |
Minimal realizations of scalar generalized Nevanlinna functions related to their basic factorization A Dijksma, H Langer, A Luger, Y Shondin Spectral methods for operators of mathematical physics, 69-90, 2004 | 29 | 2004 |
Mark Krein's method of directing functionals and singular potentials C Fulton, H Langer, A Luger Mathematische Nachrichten 285 (14‐15), 1791-1798, 2012 | 21 | 2012 |
An analytic characterization of the eigenvalues of self-adjoint extensions J Behrndt, A Luger Journal of Functional Analysis 242 (2), 607-640, 2007 | 20 | 2007 |
Generalized zeros and poles of\mathcal N_\kappa-functions: on the underlying spectral structure S Hassi, A Luger Methods of Functional Analysis and Topology 12 (02), 131-150, 2006 | 20 | 2006 |
Generalized zeros and poles of -functions: On the underlying spectral structure S Hassi, A Luger | 20* | |
Passive approximation and optimization using B-splines Y Ivanenko, M Gustafsson, BLG Jonsson, A Luger, B Nilsson, S Nordebo, ... SIAM Journal on Applied Mathematics 79 (1), 436-458, 2019 | 18 | 2019 |
A characterization of generalized poles of generalized Nevanlinna functions A Luger Mathematische Nachrichten 279 (8), 891-910, 2006 | 18 | 2006 |
A class of 2* 2-matrix functions H Langer, A Luger Glasnik matematički 35 (1), 149-160, 2000 | 17 | 2000 |
A characterization of Herglotz–Nevanlinna functions in two variables via integral representations A Luger, M Nedic Arkiv för Matematik 55 (1), 199-216, 2017 | 16 | 2017 |
Herglotz functions and applications in electromagnetics M Nedic, C Ehrenborg, Y Ivanenko, A Ludvig-Osipov, S Nordebo, A Luger, ... Advances in Mathematical Methods for Electromagnetics, 491-514, 2020 | 15 | 2020 |
Approximation of N κ ∞ -functions I: Models and Regularization A Dijksma, A Luger, Y Shondin Spectral Theory in Inner Product Spaces and Applications: 6th Workshop on …, 2009 | 13 | 2009 |
Geometric properties of measures related to holomorphic functions having positive imaginary or real part A Luger, M Nedic The Journal of Geometric Analysis 31 (3), 2611-2638, 2021 | 12 | 2021 |
Herglotz–Nevanlinna functions in several variables A Luger, M Nedic Journal of Mathematical Analysis and Applications 472 (1), 1189-1219, 2019 | 12 | 2019 |
Generalized Nevanlinna functions: operator representations, asymptotic behavior A Luger Springer, 2015 | 11 | 2015 |
Convergence of generalized Nevanlinna functions H Langer, A Luger, V Matsaev Acta Scientiarum Mathematicarum 77, 425-437, 2011 | 11 | 2011 |