Results 41 to 50 of about 6,567 (235)

Chromatic Ramsey Numbers and Two‐Color Turán Densities

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT Given a graph G, its 2‐color Turán number ex ( 2 ) ( n , G ) is the maximum number of edges in an n‐vertex graph, such that the edges can be colored with two colors avoiding a monochromatic copy of G. Let π ( 2 ) ( G ) = lim n → ∞ ex ( 2 ) ( n , G ) / n 2 be the 2‐color Turán density of G.
Maria Axenovich, Simon Gaa, Dingyuan Liu
wiley   +1 more source

Prefix-primitivity-preserving homomorphisms

open access: yes, 2014
This paper aims to investigate homomorphisms which preserve p-primitive languages. A characterization of p-primitivity-preserving homomorphisms can be detected within finite steps. Also the set of square-freeness-preserving homomorphisms is shown to be a
Huang, C.C., 喻石生, Yu, S.S.
core   +1 more source

Regular homomorphisms of minimal sets [PDF]

open access: yes, 1974
The classification of minimal sets is a central theme in abstract topological dynamics. Recently this work has been strengthened and extended by consideration of homomorphisms. Background material is presented in Chapter I.
Shoenfeld, Peter
core   +1 more source

Various Kinds of Freeness in the Categories of Krasner Hypermodules

open access: yesInternational Journal of Analysis and Applications, 2018
The purpose of this paper is to study the concept of freeness in the categories of Krasner hypermodules over a Krasner hyperring. In this regards first we construct various kinds of categories of hypermodules based on various kinds of homomorphisms of ...
Hossein Shojaei, Reza Ameri
doaj   +2 more sources

Weak Homomorphisms of Coalgebras Beyond Set

open access: yesDemonstratio Mathematica, 2014
We study the notion of weak homomorphisms between coalgebras of different types generalizing thereby that of homomorphisms for similarly typed coalgebras. This helps extend some results known so far in the theory of Universal coalgebra over Set.
Kianpi Maurice
doaj   +1 more source

On generalized derivations as homomorphisms and anti-homomorphisms

open access: yesGlasnik matematički, 2004
The concept of derivations as well as generalized derivations (i.e. Ia,b(x) = ax + xb, for all a,b R) have been generalized as an additive function F : R R satisfying F(xy) = F(x)y + xd(y) for all x,y R, where d is a nonzero derivation on R. Such a function F is said to be a generalized derivation.
openaire   +4 more sources

Homomorphic Encryption

open access: yesProcedia Computer Science, 2013
AbstractThe study of homomorphic encryption techniques has led to significant advancements in the computing domain, particularly in the sphere of cloud computing. Homomorphic encryption provides a means for securely transmitting and storing confidential information across and in a computer system.
Monique Ogburn   +2 more
openaire   +1 more source

On the stability of -homomorphisms [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2005
8 pages, minor ...
Baak, Choonkil, Moslehian, Mohammad Sal
openaire   +3 more sources

Continuous MDP Homomorphisms and Homomorphic Policy Gradient

open access: yesAdvances in Neural Information Processing Systems 35, 2022
Abstraction has been widely studied as a way to improve the efficiency and generalization of reinforcement learning algorithms. In this paper, we study abstraction in the continuous-control setting. We extend the definition of MDP homomorphisms to encompass continuous actions in continuous state spaces.
Sahand Rezaei-Shoshtari   +4 more
openaire   +3 more sources

Kuga–Satake Construction on Families of K3 Surfaces of Picard Rank 14

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT The isometry between the type IV6 and the type II4 hermitian symmetric domains suggests a possible relation between suitable moduli spaces of K3 surfaces of Picard rank 14 and of polarized abelian 8‐folds with totally definite quaternion multiplication. We show how this isometry induces a geometrically meaningful map between such moduli spaces
Flora Poon
wiley   +1 more source

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