1 citations · 1 across the 3 of their papers we have counts for
3 papers
math.GM2005
Fluid varieties
Ewa Graczynska, Dietmar Schweigert
We invent the notion of a derived and fluid variety. Fluid variety has no proper derived variety as its subvariety. We examine some properties of fluid and derived varieties. Examp…
math.GM2004
M-hyperquasivarieties
E. Graczynska, D. Schweigert
We generalize the notion of hyperquasivariety and hyperquasiidentity to the notion of M-hyperquasivariety and M-hyperquasiidentity. Birkhoff's and Malcev's type theorems are presen…
math.RA2004★ 1 cited
On the problem of basis for hyperquasivarieties
Ewa Wanda Graczynska
In the paper we presnt a solution of problem 31 of chaptr 8 of the monograph of K. Denecke and S. L. Wismath: Hypridentities and clones, Gordon & Breach, 2000, by presnting two mai…