The Variety of Semirings Generated by Distributive Lattices and Prime Fields
Received:August 09, 2013  Revised:April 16, 2014
Key Words: prime field   distributive lattice   subdirectly irreducible semiring   variety.  
Fund Project:Supported by China Postdoctoral Science Foundation (Grant No.2011M501466) and the Natural Science Foundation of Shannxi Province (Grant No.2011JQ1017).
Author NameAffiliation
Yong SHAO School of Mathematics, Northwest University, Shaanxi 710127, P. R. China 
Miaomiao REN School of Mathematics, Northwest University, Shaanxi 710127, P. R. China 
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Abstract:
      Let ${\cal V}$ be the variety generated by two-element distributive lattice $B_2$ and $k$ prime fields $F_{p_{1}},\ldots,F_{p_{k}}$. That is to say that ${\cal V}={\bf HSP}\{B_{2},\,F_{p_{1}},\ldots,F_{p_{k}}\}$. It is proved that the variety ${\cal V}$ is finitely based. Also, the two-element distributive lattice $B_{2}$ and prime fields $F_{p_{1}},\ldots,F_{p_{k}}$ are, up to isomorphism, the only subdirectly irreducible semirings in ${\cal V}$. Some known results are extended and enriched.
Citation:
DOI:10.3770/j.issn:2095-2651.2014.05.003
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