Volume 14, No.4 (2021)

1. Matrix functions with variable entries via the Dunford-Taylor integral
   D. Caratelli, E. Palini, P. E. Ricci
   Abstract | PDF |
2. The Möbius phenomenon in Generalized Möbius-Listing surfaces and bodies, and Arnold’s Cat phenomenon
   J. Gielis, P. E. Ricci, I. Tavkhelidze
   Abstract | PDF |
3. An explicit radical parametrization of Zolotarev polynomials of degree 7 in terms of nested square roots
   H.-J. Rack, R. Vajda
   Abstract | PDF |
4. Third homology of perfect central extensions
   B. Mirzaii, F. Y. Mokari, D. C. Ordinola
   Abstract | PDF |
5. Some notes on the differential geometry of linear coframe bundle of a Riemannian manifold
   H. Fattayev
   Abstract | PDF |
6. Chen-like inequalities on lightlike hypersurfaces of semi-Riemannian manifolds
   G. Gupta, R. Kumar, R. K. Nagaich
   Abstract | PDF |
7. Two-type estimates for the boundedness of generalized Riesz potential operator in the generalized weighted local Morrey spaces
   A. Kucukaslan
   Abstract | PDF |
8. Inner-product quasilinear spaces with applications in signal processing
   Y. Yilmaz, H. Levent
   Abstract | PDF |
9. A computer algebra system for the study of commutativity up to coherent homotopies
   A. M. Medina-Mardones
   Abstract | PDF |
10. On the solutions of a system of max-type difference equations
    Y. Akrour, M. B. Mesmouli, D. T. Tollu, N. Touafek
    Abstract | PDF |
11. A splitting iterative method and preconditioner for complex symmetric linear system via real equivalent form
    W.-B. Bao and S.-X. Miao
    Abstract | PDF |
12. Approximate solutions of a SIR epidemiological model of computer viruses
    M. Izadi, M. Seifaddini, M. Afshar
    Abstract | PDF |