Results 41 to 50 of about 251 (71)

A Note on Direct Products, Subreducts and Subvarieties of PBZ*--lattices

open access: yes, 2019
PBZ*--lattices are bounded lattice--ordered structures arising in the study of quantum logics, which include orthomodular lattices, as well as antiortholattices.
Mureşan, Claudia
core  

The characterization of Nelson algebras by Sheffer stroke

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this study, Sheffer stroke Nelson algebras (briefly, s-Nelson algebras), (ultra) ideals, quasi-subalgebras, quotient sets, and fuzzy structures on these algebraic structures are introduced.
Oner Tahsin   +2 more
doaj   +1 more source

The existence of one-point connectifications

open access: yes, 2017
P. Alexandroff proved that a locally compact $T_2$-space has a $T_2$ one-point compactification (obtained by adding a "point at infinity") if and only if it is non-compact.
Koushesh, M. R.
core  

Identification of Regulatory Genes and Metabolic Processes Important for Alginate Biosynthesis in Azotobacter vinelandii by Screening of a Transposon Insertion Mutant Library. [PDF]

open access: yesFront Bioeng Biotechnol, 2019
Mærk M   +7 more
europepmc   +1 more source

Genetic snapshots of the Rhizobium species NGR234 genome. [PDF]

open access: yesGenome Biol, 2000
Viprey V   +3 more
europepmc   +1 more source

Folding theory applied to BL-algebras

open access: yesOpen Mathematics, 2004
Jun Young, Ko Jung
doaj   +1 more source

On the lattice of deductive systems of a BL-algebra

open access: yesOpen Mathematics, 2003
Bu§neag Dumitru, Piciu Dana
doaj   +1 more source

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