Operator Methods in Ordinary and Partial Differential Equations

1. Front Matter

   Pages i-xii

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2. Sonja Kovalevsky

   1. Front Matter

      Pages 1-1

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   2. Curriculum Vitae

      • Sergio Albeverio, Nils Elander, W. Norrie Everitt, Pavel Kurasov

      Pages 3-4

   3. Scientific Publications

      • Sergio Albeverio, Nils Elander, W. Norrie Everitt, Pavel Kurasov

      Pages 5-5

   4. Sophie Kovalevsky

      • G. Mittag-Leffler

      Pages 7-10

   5. Sonja Kovalevsky: Her Life and Professorship at Stockholm

      • J.-E. Björk

      Pages 11-53

   6. Rigid Bodies and the Bordin Prize

      • J.-E. Björk

      Pages 55-60

   7. The Limitations of the Cauchy-Kovalevsky Theorem

      • Harold S. Shapiro

      Pages 61-64

3. Research Papers

   1. Front Matter

      Pages 65-65

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   2. On Integrability of Many-body Problems with Point Interactions

      • S. Albeverio, S. M. Fei, P. Kurasov

      Pages 67-76

   3. Generalized Point Models in Boundary Contact Value Problems of Hydroelasticity

      • Ivan V. Andronov

      Pages 77-86

   4. Some Spectral Properties of the Heun Differential Equation

      • P. B. Bailey, W. N. Everitt, D. B. Hinton, A. Zettl

      Pages 87-110

   5. On the Approximation of the Solution of the Schrödinger Equation by Superpositions of Stationary Solutions

      • Johannes F. Brasche

      Pages 111-119

   6. Lyapunov Exponents in Continuum Bernoulli-Anderson Models

      • David Damanik, Robert Sims, Günter Stolz

      Pages 121-130

   7. Families of Spectral Measures with Mixed Types

      • R. del Rio, S. Fuentes, A. Poltoratski

      Pages 131-140

   8. Singular Point-like Perturbations of the Laguerre Operator in a Pontryagin Space

      • Aad Dijksma, Yuri Shondin

      Pages 141-181

   9. Realizations of Herglotz-Nevanlinna Functions via F-systems

      • Seppo Hassi, Henk de Snoo, Eduard Tsekanovskiĭ

      Pages 183-198

   10. Integral Equations of Relativistic Bound State Theory and Sturm-Liouville Problem

       • V. Kapshai

       Pages 199-206

   11. The Non-relativistic Scattering Problem for a Superposition of δ-potentials

       • V. Kapshai, T. Alferova, N. Elander

       Pages 207-217

   12. On the Periodic Magnetic Schrödinger Operator in R ^d. Eigenvalues and Model Functions

       • Yu. E. Karpeshina

       Pages 219-231

CO«i»b.H BaCHJIbeBHa lU>BaJIeBcR8JI (Sonja Kovalevsky) was born in Moscow in 1850 and died in Stockholm in 1891. Between these years, in the then changing and turbulent circumstances for Europe, lies the all too brief life of this remarkable woman. This life was lived out within the great European centers of power and learning in Russia, France, Germany, Switzerland, England and Sweden. To this day, now 150 years after her birth, her influence for and contribution to mathe­ matics, science, literature, women's rights and democratic government are recorded and reviewed, not only in Europe but now in countries far removed in time and distance from the lands of her birth and being. This volume, dedicated to her memory and to her achievements, records the Proceedings of the Marcus Wallenberg Symposium held, in memory of Sonja Kovalevsky, at Stockholm University from 18 to 22 June 2000. The symposium was held at the Department of Mathematics with its excellent library and lecture halls providing favourable working conditions. Within these pages are contained a curriculum vitae for Sonja Kovalevsky, a list of all her scientific publications, together with a copy of the moving and elegant obituary notice written by her friend and protector Gosta Mittag-Leffler. These papers are followed by a leading article entitled Sonja Kovalevsky: Her life and professorship in Stockholm, written especially for this volume by Jan-Erik Bjork in preparation for his major address to the Symposium.

• differential equation
• functional analysis
• mathematical physics
• operator
• operator theory
• partial differential equation

• Institute of Applied Mathematics, University of Bonn, Bonn, Germany

  Sergio Albeverio

• Department of Physics, Stockholm University, Stockholm, Sweden

  Nils Elander

• School of Mathematics and Statistics, University of Birmingham, England, UK

  W. Norrie Everitt

• Department of Mathematics, Stockholm University, Stockholm, Sweden

  Pavel Kurasov

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