1. Essential spectra of spectral operators

   • B. Nagy

   OriginalPaper Pages: 1 - 6

2. The ultrametric spectral theory

   • A. Escassut

   OriginalPaper Pages: 7 - 60

3. A note to general notions of the derivation and its applications

   • A. Bleyer
   • W. Preuss

   OriginalPaper Pages: 61 - 68

4. On Darboux points of real functions

   • J. Ceder

   OriginalPaper Pages: 69 - 80

5. A note on upper radicals generated by simple rings

   • D. M. Olson
   • T. L. Jenkins

   OriginalPaper Pages: 81 - 85

6. Book review

   • A. Ádám

   BookReview Pages: 87 - 87