Abstract
In this paper, we introduce the notion of weak filters in quasi-pseudo-BL algebras. First, we discuss the properties of weak filters of a quasi-pseudo-BL algebra and characterize the weak filters generated by some non-empty subsets. Second, we investigate the relationship between weak filters of a quasi-pseudo-BL algebra and filters of its pseudo-BL subalgebra. Moreover, we study some kinds of weak filters such as normal, prime, maximal and weak prime weak filters. Third, the quotient quasi-pseudo-BL algebras with respect to normal weak filters are defined and the relation between (weak) filters of a quasi-pseudo-BL algebra and (weak) filters of its associated quotient algebra is discussed. Finally, we present the topological properties of the set of all prime weak filters of a quasi-pseudo-BL algebra and show that the prime spectrum is a complete \(T_{0}\) topological space.
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Funding
This work was supported by Shandong Provincial Natural Science Foundation (Grant Number ZR2020MA041), China Postdoctoral Science Foundation (Grant Number 2017M622177) and Shandong Province Postdoctoral Innovation Projects of Special Funds (Grant Number 201702005).
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Wenjuan Chen contributed to the study conception and design. The first draft of the manuscript was written by WC and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Chen, W., Xu, J. Quasi-pseudo-BL algebras and weak filters. Soft Comput 27, 2185–2204 (2023). https://doi.org/10.1007/s00500-022-07744-y
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DOI: https://doi.org/10.1007/s00500-022-07744-y
Keywords
- Filters
- Weak filters
- Quasi-pseudo-BL algebras
- Pseudo-BL algebras