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Research article

First published 1993

A Fully Precise Null Extended Nested Relational Algebra

Mark Levene, George Loizou

Fundamenta Informaticae

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Research article

First published 2003-9

An Extended Relational Algebra on Abstract Objects for Summarizing Answers to Queries

Robert Demolombe

Fundamenta Informaticae

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Research article

First published 1984

Extending the Relational Algebra for Relations with Maybe Tuples and Existential and Universal Null Values

Joachim Biskup

Fundamenta Informaticae

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Research article

First published 2005-11

Data modeling with imprecise and linguistic information

Guoqing Chen

Journal of Intelligent & Fuzzy Systems: Applications in Engineering and Technology

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Research article

First published 2016

On maximal filters in triangle algebras

Saeide Zahiri, Arsham Borumand Saeid, Esfandiar Eslami

Journal of Intelligent & Fuzzy Systems: Applications in Engineering and Technology

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Research article

First published 2010-6

Structures with Multirelations,their Discrete Dualities and Applications

Ivo Düntsch., Ewa Orłowska, Ingrid Rewitzky

Fundamenta Informaticae

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Research article

First published 1999-3

Iteration Lemmata for Certain Classes of Word,Trace and Graph Languages

Manfred Kudlek

Fundamenta Informaticae

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Research article

First published 2006-10

Note on Some Order Properties Related to Processes Semantics (I)

Dragoş Vaida

Fundamenta Informaticae

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Research article

First published 2018-6-22

Multi-granulation rough filters and rough fuzzy filters in Pseudo-BCI algebras

Songtao Shao, Xiaohong Zhang, Chunxin Bo [...]

Journal of Intelligent & Fuzzy Systems: Applications in Engineering and Technology

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Research article

First published 2024-07-23

Relation-Algebraic Verification of Disjoint-Set Forests

Walter Guttmann

Fundamenta Informaticae

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