An a posteriori Error Estimation of the Rayleigh-Ritz Eigenvalues. Peter Zitnan (1989) Numerische Mathematik
An abstract differential inequality and eigenvalues of variational inequalities Jan Neumann (1987) Commentationes Mathematicae Universitatis Carolinae
An addition theorem for the manifolds with the Laplacian having discrete spectrum. Kuz'minov, V.I., Shvedov, I.A. (2006) Sibirskij Matematicheskij Zhurnal
An asymmetric Neumann problem with weights M. Arias, J. Campos, M. Cuesta, J.-P. Gossez (2008) Annales de l'I.H.P. Analyse non linéaire
An eigenvalue problem for elliptic systems. Squassina, Marco (2000) The New York Journal of Mathematics [electronic only]
An eigenvalue problem for the complex Monge-Ampère operator in pseudoconvex domains N. D. Kutev, I. P. Ramadanov (1990) Annales de l'I.H.P. Analyse non linéaire
An eigenvalue problem related to Hardy’s L P inequality Moshe Marcus, Itai Shafrir (2000) Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
An eigenvalue problem with mixed boundary conditions and trace theorems. Bandle, Catherine (2008) Banach Journal of Mathematical Analysis [electronic only]
An Elliptic Boundary Value Problem Depending Nonlinearly Upon the Eigenvalue parameter. Reinhard Mennicken, Mel Faierman (1991) Manuscripta mathematica
An Elliptic Boundary Value problem occurring in Magnetohydrodynamcis. R. Mennicken, M. Faierman, M. Möller (1993) Manuscripta mathematica
An estimate of the gap of the first two eigenvalues in the Schrödinger operator I. M. Singer, Bun Wong, Shing-Tung Yau, Stephen S.-T. Yau (1985) Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
An inertial manifold and the principle of spatial averaging. Kwean, Hyukjin (2001) International Journal of Mathematics and Mathematical Sciences
An inverse eigenvalue problem for an arbitrary multiply connected bounded region in R 2 . Zayed, E.M.E. (1991) International Journal of Mathematics and Mathematical Sciences
An inverse eigenvalue problem for an arbitrary multiply connected bounded region: An extension to higher dimensions. Zayed, E.M.E. (1993) International Journal of Mathematics and Mathematical Sciences
An inverse problem for a general doubly-connected bounded domain with impedance boundary conditions. Zayed, E.M.E. (1996) Portugaliae Mathematica
An Isoperimetric Inequality for the Principal Eigenvalue of a Periodic-Parabolic Problem. Peter Hess (1987) Mathematische Zeitschrift
An operator method for a numerical quadrature finite element approximation for a class of second-order elliptic eigenvalue problems in composite structures M. Vanmaele, R. Van Keer (1995) ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
An upper bound for the local time-decay of scattering solutions for the Schrödinger equation with Coulomb potential Hans L. Cycon (1983) Annales de l'I.H.P. Physique théorique
Analyse semi-classique pour l'équation de Harper B. Helffer, J. Sjöstrand (1986/1987) Séminaire Équations aux dérivées partielles (Polytechnique)