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On the lattice of varieties of bands of groups [PDF]
Pacific Journal of Mathematics, 1980 1* Introduction* When considered as semigroups with an additional unary operation x —> x~\ where x~ denotes the (unique) inverse of x in the subgroup to which it belongs, the class CR of completely regular semigroups (often called unions of groups) forms a variety of universal algebras, containing as a subvariety thevariety BG of bands of groups (those
Hall, T. E., Jones, P. R.
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Advances in Agriculture, 2023 The experiment was laid out in alpha-lattice design with two replicates of each genotype which comprised twenty-three heat-tolerant maize hybrids received from CIMMYT-Mexico and three check varieties.
Sara Rawal +3 more
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Recent progress toward highly efficient tin‐based perovskite (ASnX3) solar cells
Nano Select, 2021 Recently, lead halide perovskites have attracted great attention in photovoltaic field because of high power conversion efficiency. However, the toxicity of lead in perovskite can result in environment issues, which are the major challenge for commercial
Mingzhe Zhu, Guorui Cao, Zhongmin Zhou
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A Logic for Dually Hemimorphic Semi-Heyting Algebras and its Axiomatic Extensions
Bulletin of the Section of Logic, 2022 The variety \(\mathbb{DHMSH}\) of dually hemimorphic semi-Heyting algebras was introduced in 2011 by the second author as an expansion of semi-Heyting algebras by a dual hemimorphism.
Juan Manuel Cornejo +1 more
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Varieties of unary-determined distributive $\ell$-magmas and bunched implication algebras [PDF]
Logical Methods in Computer ScienceA distributive lattice-ordered magma ($d\ell$-magma) $(A,\wedge,\vee,\cdot)$ is a distributive lattice with a binary operation $\cdot$ that preserves joins in both arguments, and when $\cdot$ is associative then $(A,\vee,\cdot)$ is an idempotent semiring.
Natanael Alpay +2 more
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Compact elements in the lattice of varieties [PDF]
Mathematica Bohemica, 2005 Summary: We prove that the lattice of varieties contains almost no compact elements.
Ježek, J., Slavík, V.
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The Order of Hypersubstitutions of Type (2,1)
International Journal of Mathematics and Mathematical Sciences, 2011 Hypersubstitutions are mappings which map operation symbols to terms of the corresponding arities. They were introduced as a way of making precise the concept of a hyperidentity and generalizations to 𝑀-hyperidentities.
Tawhat Changphas, Wonlop Hemvong
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A Note on 3×3-valued Łukasiewicz Algebras with Negation
Bulletin of the Section of Logic, 2021 In 2004, C. Sanza, with the purpose of legitimizing the study of n × m-valued Łukasiewicz algebras with negation (or NSn×m-algebras) introduced 3 × 3-valued Łukasiewicz algebras with negation.
Carlos Gallardo, Alicia Ziliani
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On the Equational Theory of Lattice-Based Algebras for Layered Graphs
AxiomsLayered algebras are introduced and used to express layered graphs. Layered graphs are considered to be a highly effective abstract tool to manage the difficulty in conceptualizing and reasoning regarding complex systems related to coding in email ...
Zhe Yu +4 more
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Application of the BLUPe predictor in the selection of potential soybean varieties for Orinoquia
Agronomía Colombiana, 2022 The Colombian Orinoquía and the Altillanura subregion show comparative and competitive advantages for soybean production (edaphoclimatic conditions, cost-benefit ratio, potential area, and location), essential food with a high protein content (~37%) and
Rubén Alfredo Valencia Ramírez +1 more
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