activity
19962024
most citedOn tractability and congruence distributivity

18 citations · 38 across the 8 of their papers we have counts for

collaborators

11 papers

math.LO2024

What is the weakest idempotent Maltsev condition that implies that abelian tolerances generate abelian congruences?

Keith A. Kearnes, Emil W. Kiss

We answer the question in the title. In the process, we correct an error in our AMS Memoir The Shape of Congruence Lattices.

math.LO2019

Minimal abelian varieties of algebras, I

Keith A. Kearnes, Emil W. Kiss, Agnes Szendrei

We show that any abelian variety that is not affine has a nontrivial strongly abelian subvariety. In later papers in this sequence we apply this result to the study of minimal abel…

math.RA2015

Varieties whose finitely generated members are free

Keith A. Kearnes, Emil W. Kiss, Agnes Szendrei

We prove that a variety of algebras whose finitely generated members are free must be definitionally equivalent to the variety of sets, the variety of pointed sets, a variety of ve…

math.RA2013★ 8 cited

Growth rates of algebras, I: pointed cube terms

Keith A. Kearnes, Emil W. Kiss, Agnes Szendrei

We investigate the function d_A(n), which gives the size of a least size generating set for A^n.

math.RA2013★ 6 cited

Growth Rates of Algebras, II: Wiegold Dichotomy

Keith A. Kearnes, Emil W. Kiss, Agnes Szendrei

We investigate the function , which gives the size of a least size generating set for , in the case where has a cube term. We show that…

math.RA2013

Growth Rates of Algebras, III: Growth Rates of Solvable Algebras

Keith A. Kearnes, Emil W. Kiss, Ágnes Szendrei

We investigate how the behavior of the function d_A(n) that gives the size of a least size generating set for A^n, influences the structure of a finite solvable algebra A.

math.RA2012★ 4 cited

Varieties whose tolerances are homomorphic images of their congruences

Gabor Czedli, Emil W. Kiss

The homomorphic image of a congruence is always a tolerance (relation) but, within a given variety, a tolerance is not necessarily obtained this way. By a Maltsev-like condition, w…

math.NT2011

Cubes of integral vectors in dimension four

Emil W. Kiss, Péter Kutas

A system of nonzero vectors in is called an -icube if they are pairwise orthogonal and have the same length. The paper describes -icubes in …

math.NT2008

Sums of squares and orthogonal integral vectors

Lee M. Goswick, Emil W. Kiss, Gabor Moussong +1

Two vectors in $\BZ^3$ are called \emph{twins} if they are orthogonal and have the same length. The paper describes twin pairs using cubic lattices, and counts the number of twin p…

cs.CC2007★ 18 cited

On tractability and congruence distributivity

Emil Kiss, Matthew Valeriote

Constraint languages that arise from finite algebras have recently been the object of study, especially in connection with the Dichotomy Conjecture of Feder and Vardi. An important…

math.RA1996★ 2 cited

Modularity prevents tails

Keith A. Kearnes, Emil W. Kiss

We establish a direct correspondence between two congruence poroperties for finite algebras. The first property is that minimal sets of type i omit tails. The second property is th…