1. On orbits of the automorphism group on a complete toric variety

   • Ivan Bazhov

   Original Paper 24 December 2011 Pages: 471 - 481

2. On the least odd quadratic non-residue

   • Wolfgang Knapp
   • Markus Köcher
   • Peter Schmid

   Original Paper 19 January 2012 Pages: 483 - 491

3. Non-soluble groups with few conjugacy classes of non-normal subgroups

   • Rolf Brandl

   Original Paper 31 January 2012 Pages: 493 - 501

4. A new number field construction of the lattice E ₈

   • André Luiz Flores
   • J. Carmelo Interlando
   • André Luís Contiero

   Original Paper 09 March 2012 Pages: 503 - 508

5. Discretizations of the hyperbolic cosine

   • Christian Müller

   Original Paper 09 March 2012 Pages: 509 - 531

6. Geometric structures on finite- and infinite-dimensional Grassmannians

   • Andrea Blunck
   • Hans Havlicek

   Original Paper 11 March 2012 Pages: 533 - 547

7. Finite solvable groups in which semi-normality is a transitive relation

   • A. Ballester-Bolinches
   • J. C. Beidleman
   • M. F. Ragland

   Original Paper 31 March 2012 Pages: 549 - 558

8. Some results on generalized (σ, τ)-derivations in prime rings

   • Evrim Güven

   Original Paper 10 April 2012 Pages: 559 - 566

9. Notes on contact η-Einstein metrics as Ricci solitons

   • Amalendu Ghosh

   Original Paper 12 June 2012 Pages: 567 - 573

10. Biquaternions and their complex matrix representations

    • Yongge Tian

    Original Paper 22 June 2012 Pages: 575 - 592

11. Hyperbolicity of monoids presented by confluent monadic rewriting systems

    • Alan J. Cain

    Original Paper 04 July 2012 Pages: 593 - 608

12. Jordan left *-centralizers of prime and semiprime rings with involution

    • Shakir Ali
    • Nadeem Ahmad Dar
    • Joso Vukman

    Original Paper 13 July 2012 Pages: 609 - 624

13. Quadric hypersurfaces of L _r -finite type

    • Akram Mohammadpouri
    • S. M. B. Kashani

    Original Paper 22 July 2012 Pages: 625 - 641

14. On the perimeters of simple polygons contained in a plane convex body

    • Zsolt Lángi

    Original Paper 01 August 2012 Pages: 643 - 649

15. Icosahedral skeletal polyhedra realizing Petrie relatives of Gordan’s regular map

    • Anthony M. Cutler
    • Egon Schulte
    • Jörg M. Wills

    Original Paper 10 October 2012 Pages: 651 - 657

    

16. Visual distinguishability of polygons

    • Árpád Kurusa

    Original Paper 25 August 2012 Pages: 659 - 667

17. Intersections of descending sequences of affinely equivalent convex bodies

    • Jim Lawrence

    Original Paper 13 October 2012 Pages: 669 - 676

18. A result on generalized derivations on Lie ideals in prime rings

    • B. Dhara
    • S. Kar
    • S. Mondal

    Original Paper 20 October 2012 Pages: 677 - 682

19. Simplicial slices of the space of minimal \(SU(2)\)-orbits in spheres

    • Gabor Toth

    Original Paper 16 October 2012 Pages: 683 - 699

20. Convolution filters for polygons and the Petr–Douglas–Neumann theorem

    • Grégoire Nicollier

    Original Paper 09 April 2013 Pages: 701 - 708

    

21. Functions of triples of positive real numbers and their use in study of bicentric polygons

    • Mirko Radić

    Original Paper 16 November 2012 Pages: 709 - 736

    

22. Kinematic mappings for Cayley–Klein geometries via Clifford algebras

    • Daniel Klawitter
    • Markus Hagemann

    Original Article 05 June 2013 Pages: 737 - 761

23. The influence of weakly \(c\)-normal and \(ss\)-quasinormal subgroups of prime power order on the structure of finite groups

    • Guo Zhong
    • Liying Yang
    • Yang Zhou

    Original Paper 20 February 2013 Pages: 763 - 768

24. Erratum to: Very ample but not normal lattice polytopes

    • Shoetsu Ogata

    Erratum 24 January 2013 Pages: 769 - 770