Vol. 82 No. 2 (1998)

Articles

• The Diophantine system $x^2-6y^2=-5,\ x=2z^2-1$

  J. H. E. Cohn

  161-164

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• Families of surfaces: Height functions and projections to planes

  J.W. Bruce, P.J. Giblin, F. Tari

  165-185

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• On the Ricci curvature of a hypersurface in a sphere

  Mehmet Erdogan

  186-190

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• On Singularities of Folding Maps and Augmentations

  Kevin Houston

  191-206

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• The Chern-Euler number of circle bundle via singularity theory

  M. È. Kazarian

  207-236

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• K-Theory for $C^*$-algebras associated with subshifts

  Kengo Matsumoto

  237-255

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• The Polynomial Approximation Property in Fock-type Spaces

  A. A. Borichev

  256-264

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• An algebraic multiplicity theory for analytic operator-valued functions

  Jón Arason, Robert Magnus

  265-286

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• Exposed faces of the unit ball in a JBW*-triple

  C. Martin Edwards, Gottfried T. Rüttiman

  287-304

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• When matrices commute

  Terry A. Loring

  305-319

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