Results 21 to 30 of about 20,519 (194)

Hopf Algebra of Sashes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
A general lattice theoretic construction of Reading constructs Hopf subalgebras of the Malvenuto-Reutenauer Hopf algebra (MR) of permutations. The products and coproducts of these Hopf subalgebras are defined extrinsically in terms of the embedding in MR.
Shirley Law
doaj   +1 more source

On the Category of EQ-algebras

open access: yesBulletin of the Section of Logic, 2021
In this paper, we studied the category of EQ-algebras and showed that it is complete, but it is not cocomplete, in general. We proved that multiplicatively relative EQ-algebras have coequlizers and we calculated coproduct and pushout in a special case ...
Narges Akhlaghinia   +3 more
doaj   +1 more source

Weak equivalence of higher-dimensional automata [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2021
This paper introduces a notion of equivalence for higher-dimensional automata, called weak equivalence. Weak equivalence focuses mainly on a traditional trace language and a new homology language, which captures the overall independence structure of an ...
Thomas Kahl
doaj   +1 more source

On bialgebras and Hopf algebras of oriented graphs [PDF]

open access: yes, 2011
We define two coproducts for cycle-free oriented graphs, thus building up two commutative con- nected graded Hopf algebras, such that one is a comodule-coalgebra on the other, thus generalizing the result obtained previously for Hopf algebras of rooted ...
Manchon, Dominique
core   +3 more sources

Quantization of Drinfel'd doubles [PDF]

open access: yes, 2004
Hopf algebra quantizations of 4-dimensional and 6-dimensional real classical Drinfel'd doubles are studied by following a direct "analytic" approach. The full quantization is explicitly obtained for most of the Drinfel'd doubles, except a small number of
Ballesteros, A.   +2 more
core   +1 more source

On partial inverse operations in the class of preradicals of modules

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
In the present work two partial operations in the class of preradicals ℙℝ of the category R-Mod of left R-modules are defined and investigated. They are inverse operations for product with respect to meet and coproduct with respect to join.
Jardan Ion
doaj   +1 more source

Morphometric measurements of sheep fed with increasing levels of sunflower meal

open access: yesActa Scientiarum: Animal Sciences, 2019
The objective of this work was to evaluate the performance, body morphometric measurements and testicular development in lambs fed with different rates of sunflower meal inclusion.
Neyton Carlos da Silva   +5 more
doaj   +1 more source

Higher-dimensional automata modeling shared-variable systems [PDF]

open access: yesLogical Methods in Computer Science, 2019
The purpose of this paper is to provide a construction to model shared-variable systems using higher-dimensional automata which is compositional in the sense that the parallel composition of completely independent systems is modeled by the standard ...
Thomas Kahl
doaj   +1 more source

Early Entrance Coproduction Plant [PDF]

open access: yes, 2003
The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology.
Ahmed, Mushtaq   +5 more
openaire   +5 more sources

Feeding a Multi-Enzyme Blend to Enhance the Nutrient Digestibility of Wheat-Canola Expeller Diets in Ileal-Cannulated Weaned Pigs

open access: yesAnimals
Canola expeller (CE) contains ~200 g/kg residual oil, but also fiber that impairs nutrient digestibility in weaned pigs. To study if feed enzymes increase digestibility, six diets containing either the basal or two CE samples mixed in at 250 g/kg (CE-A ...
A. Janine Soderstrom   +4 more
doaj   +1 more source

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