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Beiträge zur Algebra und Geometrie
Contributions to Algebra and Geometry


Volume 44 (2003)

 Number 1, Number 2 

Number 1

forward to  Number 2

G. Preissler
Isothermic Surfaces and Hopf Cylinders
001--008 [Abstract] [Full Text]

B.-Y. Chen
More on Convolution of Riemannian Manifolds
009--024 [Abstract] [Full Text]

F. Buekenhout, P.-O. Dehaye, D. Leemans
RWPRI and (2T)1 Flag-transitive Linear Spaces
025--046 [Abstract] [Full Text]

E. Hertel, C. Richter
Squaring the Circle by Dissection
047--055 [Abstract] [Full Text]

L. Verhoczki
Special Cohomogeneity One Isometric Actions on Irreducible Symmetric Spaces of Types I and II
057--074 [Abstract] [Full Text]

M. M. Ali, D. J. Smith
Generalized GCD Rings II
075--098 [Abstract] [Full Text]

J. D. H. Smith
On the Dimension of Finite Permutation Group Actions
099--109 [Abstract] [Full Text]

E. Ballico, N. Chiarli, S. Greco
Projective Schemes with Degenerate General Hyperplane Section II
111--126 [Abstract] [Full Text]

A. Breda D'Azevedo, R. Nedela
Chiral Hypermaps of Small Genus
127--143 [Abstract] [Full Text]

S. Kantor
On the Volume of Unbounded Polyhedra in the Hyperbolic Space
145--154 [Abstract] [Full Text]

G. Sojka
On Mappings Preserving a Family of Star Bodies
155--163 [Abstract] [Full Text]

M. A. Akivis, V. V. Goldberg
Smooth Lines on Projective Planes over Two-Dimensional Algebras and Submanifolds with Degenerate Gauss Maps
165--178 [Abstract] [Full Text]

T.-M. Lok, K. P. Shum
On Matrix Rings over Unit-Regular Rings
179--188 [Abstract] [Full Text]

A. Cavicchioli, B. Ruini, F. Spaggiari
Decomposing Four-Manifolds up to Homotopy Type
189--201 [Abstract] [Full Text]

S. Izumiya, N. Takeuchi
Special Curves and Ruled Surfaces
203--212 [Abstract] [Full Text]

F. G. Timmesfeld
Groups with Root-System of Type BCl
213--227 [Abstract][Abstract-pdf] [Full Text]

G. Nebe
Even Lattices with Covering Radius Less Than Square Root of 2
229--234 [Abstract] [Full Text]

G. Gevay
Construction of Non-Wythoffian Perfect 4-Polytopes
235--244 [Abstract] [Full Text]

J. Wallner
Hopf Mappings for Complex Quaternions
245--262 [Abstract] [Full Text]

W. Guggenberger, J. Rung
L-Gruppoide: Algebraische und topologische Eigenschaften spezieller Gruppoide
263--283 [Abstract] [Full Text]

A. Ragusa, G. Zappala
Partial Intersections and Graded Betti Numbers
285--302 [Abstract] [Full Text]

Number 2

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T. Guedenon
The Gelfand-Kirillov Dimension of Rings with Hopf Algebra Action
303--308 [Abstract / Full Text]

C. L. Bejan, M. Benyounes
Harmonic φ-Morphisms
309--321 [Abstract / Full Text]

I. Müller
Corner Cuts and Their Polytopes
323--333 [Abstract / Full Text]

C. U. Sanchez, W. Dal Lago, A. l. Cali, J. Tala
On Extrinsic Symmetric Cauchy-Riemann Manifolds
335--357 [Abstract / Full Text]

J. O. Araujo
A Gel'fand Model for a Weyl Group of Type Bn
359--373 [Abstract / Full Text]

A. O. Kuku, G. Tang
An Explicit Computation of "bar" Homology Groups of a Non-Unital Ring
375--382 [Abstract / Full Text]

N. Y. Özgür
On the Subgroups of the Picard Group
383--387 [Abstract / Full Text]

S. Veldsman
How Round is a Circle? Constructions of Double and Circular Planar Near-Rings
389--411 [Abstract / Full Text]

D. Singerman, R. I. Syddall
The Riemann Surface of a Uniform Dessin
413--430 [Abstract / Full Text]

F. Fodor
The Densest Packing of 13 Congruent Circles in a Circle
431--440 [Abstract / Full Text]

H. Martini, W. Wenzel
An Analogue of the Krein-Milman Theorem for Star-Shaped Sets
441--449 [Abstract / Full Text]

A. Beligiannis, H. Krause
Realizing Maps between Modules over Tate Cohomology Rings
451--466 [Abstract / Full Text]

D. Karim
Zero-Dimensional Pairs
467--470 [Abstract / Full Text]

H. Nishimura
Holonomicity in Synthetic Differential Geometry of Jet Bundles
471--481 [Abstract / Full Text]

J. Tölke
An Invariance Property of the Tridens Curve in the Isotropic Plane
483--485 [Abstract / Full Text]

R. Schneider
An Integral Geometric Theorem for Simple Valuations
487--492 [Abstract / Full Text]

K. Bezdek, P. Brass
On k+-Neighbour Packings and One-Sided Hadwiger Configurations
493--498 [Abstract / Full Text]

A. Bernig, T. Foertsch, V. Schroeder
Non Standard Metric Products
499--510 [Abstract / Full Text]

S. Gigena
Classification of Five Dimensional Hypersurfaces with Affine Normal Parallel Cubic Form
511--524 [Abstract / Full Text]

H. Tutaj-Gasinska
A Note on k-very Ampleness of a Bundle on a Blown up Plane
525--530 [Abstract / Full Text]

R. Brandenberg, D. Larman
Dark Clouds on Spheres and Totally Non-Spherical Bodies of Constant Breadth
531--538 [Abstract / Full Text]

A. M. d'Azevedo Breda, A. F. Santos
Well Centered Spherical Quadrangles
539--549 [Abstract / Full Text]

D. Luczyszyn
On Pseudosymmetric Para-Kählerian Manifolds
551--558 [Abstract / Full Text]

G. Bini
Generalized Hodge Classes on the Moduli Space of Curves
559--565 [Abstract / Full Text]

S.-Q. Oh
Hopf Structure for Poisson Enveloping Algebras
567--574 [Abstract / Full Text]

R. J. Blok
The Generating Rank of the Symplectic Line-Grassmannian
575--580 [Abstract / Full Text]

B. Cahen
Contraction de SU(2) vers le Groupe de Heisenberg et Calcul de Berezin
581--603 [Abstract / Full Text]