1. Notes on Dirichlet series with complex exponents II. The convexity of the domain of summability by typical means of integral order

   • J. Deák

   OriginalPaper Pages: 281 - 285

2. Eccentric sequences in graphs

   • Linda Lesniak

   OriginalPaper Pages: 287 - 293

3. Extension theorems for linear lattices with positive algebraic basis

   • Garfield C. Schmidt

   OriginalPaper Pages: 295 - 307

4. Various norms on indefinite inner product spaces

   • J. Bognár

   OriginalPaper Pages: 309 - 321

5. The maximal number of quadrilaterals bounded by general straight lines in a plane

   • Ilona Palásti

   OriginalPaper Pages: 323 - 341

6. A theorem about probabilities of large deviations with an application to queuing theory

   • D. Plachky
   • J. Steinebach

   BriefCommunication Pages: 343 - 345

7. On the global existence of solutions of a functional-differential equation

   • St. Czerwik

   OriginalPaper Pages: 347 - 351

8. Eine elementare Charakterisierung von Homöomorphismen

   • R. Z. Domiaty

   BriefCommunication Pages: 353 - 355

9. On a conjecture of Fejes Tóth

   • V. Chvátal

   OriginalPaper Pages: 357 - 362

10. Order-quasiultrabarrelled vector lattices and spaces

    • T. Husain
    • S. M. Khallelulla

    OriginalPaper Pages: 363 - 371

11. Research problems

    • A. Hajnal
    • P. Turán
    • I. Juhász

    OriginalPaper Pages: 373 - 374