**CONTENTS**

*Giovanni Alessandrini and Edi Rosset *Symmetry of Singular Solutions of Degenerate Quasilinear Elliptic Equations

*Margherita Barile *On Simplicial Toric Varieties of Codimension 2

*Giandomenico Boffi and Alessandro Logar *Gröbner Bases for Submodules of

*Z*

^{n}*Denis Bonheure, P. Habets, Franco Obersnel and Pierpaolo Omari *Classical and non-Classical Positive Solutions of a Prescribed Curvature Equation with Singularities

*Francis Borceux, Marino Gran and Sandra Mantovani *On Closure Operators and Reflections in Goursat Categories

*Luca Bortolussi and Andrea Sgarro *Hamming-like Distances for Ill-defined Strings in Linguistic Classification

*Ingrid Carbone and Aljoša Volčič *Kakutani's Splitting Procedure in Higher Dimension

*Elena Comparini, Claudio Pescatore and Maura Ughi *On a Quasilinear Parabolic System Modelling the Diffusion of Radioactive Isotopes

*Daniele Del Santo, Tamotu Kinoshita and Michael Reissig *Klein-Gordon Type Equations with a Singular Time-dependent Potential

*Pietro De Poi and Emilia Mezzetti *On Congruences of Linear Spaces of Order One

*Philippe Ellia and Alessandra Trambaiolli *Global Generation

*Elena Grieco and Anna Guerrieri *Minimal Primes over

*P*

_{3}(M)*Monica Idà *Postulation Problems for Vector Bundles

*Marina Pireddu and Fabio Zanolin *Some Remarks on Fixed Points for Maps which are Expansive along one Direction

*Anna Scaramuzza *An Algorithm for Computing Primitive Relations

*Alessandro Soranzo and Gino Tironi *Sequential Order of Compact Sequential Spaces

*Walter Spangher *Some Remarks on Homogeneous Minimal Reductions

*Janet Striuli *Strong Artin-Rees Property in Rings of Dimension One and Two

*Bruno P. Zimmermann *On the Determination of Knots by their Cyclic Unbranched Coverings

*Luciana Zuccheri and Verena Zudini *On the Influence of CognitiveTheories in the Teaching of Calculus in Austrian Secondary Schools at the Beginning of the 20th Century

*Devendra Kumar *On Approximation of Linear Second Order Elliptic Partial Differential Equations with Analytic Coefficients

*Andrei Vesnin *On Hyperbolic π-Orbifolds with Arbitrary many Singular Components

*Peter V. Danchev*

Note on Elongations of Summable *p*-Groups by *p*^{ω}* ^{+n}*-Projective

*p*-Groups II

*Raffaella Mascolo *Variations on Hartogs and Henkin-Tumanov Theorems

*Federica Malagoli *A Problem of Minimum Area for Bodies with Constrains on Width and Curvature

*S. Kundu and Pratibha Garg *Countability Properties of the Pseudocompact-Open Topology on

*C(X)*: A Comparative Study

*Marcos Gaudiano, Tomàs Godoy and Cristina Turner *On the Limit Behavior in a Free Boundary Model for the Diffusion in a Polymer

*Carlo Benassi and Giuliana D'Ercole *An Algorithm for Reconstructing a Convex Polygon from its Covariogram

** Editorial policy**
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