Results 1 to 10 of about 6,941 (163)
On quasi-identities of finite modular lattices. II [PDF]
The existence of a finite identity basis for any finite lattice was established by R. McKenzie in 1970, but the analogous statement for quasi-identities is incorrect.
A.O. Basheyeva, S.M. Lutsak
doaj +2 more sources
Direct summands of Goldie extending elements in modular lattices [PDF]
In this paper some results on direct summands of Goldie extending elements are studied in a modular lattice. An element $a$ of a lattice $L$ with $0$ is said to be a Goldie extending element if and only if for every $b \leq a$ there exists a direct ...
Rupal Shroff
doaj +1 more source
On quasi-identities of finite modular lattices
In 1970 R. McKenzie proved that any finite lattice has a finite basis of identities. However the similar result for quasi-identities is not true. That is there is a finite lattice that has no finite basis of quasi-identities.
S. Lutsak, O. Voronina, G. Nurakhmetova
doaj +1 more source
SOME PROPERTIES ON DERIVATIONS OF LATTICES [PDF]
In this paper we consider some properties of derivations of lattices and show that (i) for a derivation $d$ of a lattice $L$ with the maximum element $1$, it is monotone if and only if $d(x) \le d(1)$ for all $x\in L$ (ii) a monotone derivation $d$ is ...
Mayuka Kawaguchi, Michiro KONDO
doaj +1 more source
On some new developments in the theory of subgroup lattices of groups [PDF]
A rather natural way for trying to obtain a lattice-theoretic characterization of a class of groups ${\mathcal X}$ is to replace the concepts appearing in the definition of ${\mathcal X}$ by lattice-theoretic concepts.
Maria De Falco, Carmela Musella
doaj +1 more source
The Number Theoretic Transform (NTT) has been widely used to speed up polynomial multiplication in lattice-based post-quantum algorithms. All NTT operands use modular arithmetic, especially modular multiplication, which significantly influences NTT ...
Trong-Hung Nguyen +2 more
doaj +1 more source
Pasting and modular lattices [PDF]
A classical lattice construction of R. P. Dilworth is the gluing of two lattices. A number of recent papers by A. Slavík, A. Day, and J. Ježek investigated a generalization: pasting .
Fried, E., Grätzer, G.
openaire +2 more sources
Some non-standard quasivarieties of lattices [PDF]
The questions of the standardness of quasivarieties have been investigated by many authors. The problem "Which finite lattices generate a standard topological prevariety?" was suggested by D.M. Clark, B.A. Davey, M.G. Jackson and J.G. Pitkethly in 2008.
S.M. Lutsak +3 more
doaj +2 more sources
Equivalent Forms for a Poset to Be Modular Poset
The notion of modular and distributive posets which generalize the corresponding notions from the lattice theory are introduced by J. Larmerova and J. Rachnek.
Sundarayya P., Kishore T. Ravi
doaj +1 more source
THE LATTICE OF CONGRUENCES ON A TERNARY SEMIGROUP [PDF]
In this paper we investigate some properties of congruences on ternary semigroups. We also define the notion of congruence on a ternary semigroup generated by a relation and we determine the method of obtaining a congruence on a ternary semigroup T from a
N. Ashrafi, Z. Yazdanmehr
doaj +1 more source

