1. In Memoriam Hans Zassenhaus

   • Johannes André

   Results in Mathematics 25 April 2013 Pages: 253 - 255

2. Commutativity theorems for s-unital rings with constraints on commutators

   • Hamza A. S. Abujabal
   • Veselin Peric

   Results in Mathematics 25 April 2013 Pages: 256 - 263

3. On rings with engel cycles, II

   • Howard E. Bell
   • Abraham A. Klein

   Results in Mathematics 25 April 2013 Pages: 265 - 273

4. On martingales and feller semigroups

   • J. A. van Casteren

   Results in Mathematics 25 April 2013 Pages: 274 - 288

5. Barrelledness and bornological conditions on spaces of vector-valued μ-simple functions

   • Santiago Diaz
   • Lech Drewnowski
   • Pedro J. Paul

   Results in Mathematics 25 April 2013 Pages: 289 - 298

6. The problem of topologies of grothendieck for quojections

   • Juan Carlos Diaz
   • Giorgio Metafune

   Results in Mathematics 25 April 2013 Pages: 299 - 312

7. Isometric immersions of tori into R³ with given mean curvature

   • Shing H. Doong
   • Ioannis M. Roussos

   Results in Mathematics 25 April 2013 Pages: 313 - 318

8. On Restrictions of Automorphism Groups of Compact Projective Planes to Subplanes

   • Theo Grundhöfer
   • Markus Stroppel

   Results in Mathematics 25 April 2013 Pages: 319 - 327

9. Translation planes of order 25 admitting a quaternion group of homologies with affine axis

   • Günter Heimbeck

   Results in Mathematics 25 April 2013 Pages: 329 - 331

10. A geometric construction of generalized quadrangles from polar spaces of rank three

    • Norbert Knarr

    Results in Mathematics 25 April 2013 Pages: 332 - 344

11. A topological characterization of norms on a nearfield

    • Emanuel Kolb

    OriginalPaper 25 April 2013 Pages: 345 - 354

12. Konstruktion von Translationen in schwach affinen Geometrien mit Hilfe schwach affiner Relative

    • Andreas Kopp

    OriginalPaper 25 April 2013 Pages: 356 - 367

13. On The Asymptotic Behaviour of Franel’s Sum And The Riemann Hypothesis

    • Miklos Mikolás
    • Ken-ichi Sato

    OriginalPaper 25 April 2013 Pages: 368 - 378

14. The No Ghost Theorem in String Theory

    • Stephen Parrott

    OriginalPaper 25 April 2013 Pages: 379 - 395

15. The SQ-universality of one-relator products of cyclics

    • Gerhard Rosenberger

    Results in Mathematics 25 April 2013 Pages: 396 - 402

16. A New Joint Proof of the Theorems of Picard and Montel

    • Wilhelm Schwick

    Results in Mathematics 25 April 2013 Pages: 403 - 407

17. Isomorphismen Zwischen Speziellen Scharf Dreifach Transitiven Permutationsgruppen

    • Heinz Wähling

    Results in Mathematics 25 April 2013 Pages: 408 - 421

18. Galoisverbindungen zwischen Untergruppenverbänden und Modul verbänden

    • Michael Weidner

    Results in Mathematics 25 April 2013 Pages: 422 - 443