Results 81 to 90 of about 3,009,670 (368)

Thread Algebra with Multi-Level Strategies

Fundamenta Informaticae, 2006
In a previous paper, we developed an algebraic theory about threads and multi-threading based on the assumption that a deterministic interleaving strategy determines how threads are interleaved.
J. Bergstra, K. Middelburg
semanticscholar   +1 more source

Coverings of graded pointed Hopf algebras

Journal of Algebra, 2015
We introduce the concept of a covering of a graded pointed Hopf algebra. The theory developed shows that coverings of a bosonized Nichols algebra can be concretely expressed by biproducts using a quotient of the universal coalgebra covering group of the Nichols algebra.
Beneish, Esther, Chin, William
openaire   +2 more sources

Risk‐aware safe reinforcement learning for control of stochastic linear systems

Asian Journal of Control, EarlyView.
Abstract This paper presents a risk‐aware safe reinforcement learning (RL) control design for stochastic discrete‐time linear systems. Rather than using a safety certifier to myopically intervene with the RL controller, a risk‐informed safe controller is also learned besides the RL controller, and the RL and safe controllers are combined together ...
Babak Esmaeili, Nariman Niknejad, Hamidreza Modares   +2 more
wiley   +1 more source

On the dimension of the minimal vertex cover semigroup ring of an unmixed bipartite graph

Le Matematiche, 2008
In a paper in 2008, Herzog, Hibi and Ohsugi introduced and studied the semigroup ring associated to the set of minimal vertex covers of an unmixed bipartite graph.
Cristina Bertone, Vincenzo Micale
doaj  

A heuristic method for bi-decomposition of partial Boolean functions

Informatika, 2020
The problem of decomposition of a Boolean function is to represent a given Boolean function in the form of a superposition of some Boolean functions whose number of arguments are less than the number of given function.
Yu. V. Pottosin
doaj   +1 more source

Hydrological characterization of the Usumacinta River Basin towards the preservation of environmental services [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The Usumacinta basin is characterized by aboundance of natural and scenic resources. It also houses a vast biodiversity (wich also means invaluable genetic resources). Its river is the longest in Mexico (main channel length of 927 km).
F.-O. Tapia-Silva, A.-I. Contreras-Silva, E.-R. Rosales-Arriaga   +2 more
doaj   +1 more source

On the operad structure of admissible G-covers

, 2012
We describe the modular operad structure on the moduli spaces of pointed stable curves equipped with an admissible $G$-cover. To do this we are forced to introduce the notion of an operad colored not by a set but by the objects of a category.
Petersen, Dan
core   +1 more source

Young people's occupational aspirations beyond the aspiration discourse: A sociocultural perspective

British Educational Research Journal, EarlyView.
Abstract Young people's aspirations have been the focus of many educational, sociological and psychological studies. This paper argues, firstly, that the concept of aspirations holds greater generative potential than suggested by the policy‐oriented ‘aspiration discourse’.
Jelena Popov
wiley   +1 more source

The standard graded property for vertex cover algebras of quasi-trees

Le Matematiche, 2008
In [5] the authors characterize the vertex cover algebras which are tandard graded. In this paper we give a simple combinatorial criterion for the standard graded property of vertex cover algebras in the case of quasi-trees.
Alexandru Costantinescu, Le Dinh Nam
doaj  

The integrable Bullough-Dodd model under celestial holography

Journal of High Energy Physics
We study celestial amplitudes for the S-matrix of the 2d integrable Bullough-Dodd model. This model has bound states that appear as poles in the physics strip of its 2d S-matrix, which complicates the computation of celestial amplitudes.
Minjia Wang, Wei Fan
doaj   +1 more source