Found 156 Documents (Results 1–100)
Voting on cyclic orders, group theory, and ballots. (English) Zbl 1537.91088
Jones, Michael A. (ed.) et al., Mathematics of decisions, elections and games. AMS special session, virtual, April 8, 2022. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 795, 57-86 (2024).
Direct powers of hyperalgebras carried by good homomorphisms. (English) Zbl 1533.08001
Reviewer: Peeter Normak (Tallinn)
Common fixed point theorem for multivalued mappings using ternary relation in \(G\)-metric space with an application. (English) Zbl 1497.54080
The solvability of \(f(p(x)) = q(f(x))\) for given strictly monotonous continuous real functions \(p\), \(q\). (English) Zbl 1507.26019
Attribute reduction using functional dependency relations in rough set theory. (English) Zbl 1495.68231
Ramanna, Sheela (ed.) et al., Rough sets. International joint conference, IJCRS 2021, Bratislava, Slovakia, September 19–24, 2021. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 12872, 90-96 (2021).
Algebras from congruences. (English) Zbl 1484.08015
Reviewer: Anna Romanowska (Warszawa)
On countably saturated linear orders and certain class of countably saturated graphs. (English) Zbl 1498.03080
On a product of universal relational systems. (English) Zbl 1472.08001
Reviewer: Wiesław A. Dudek (Wrocław)
The structure of centralizers in the finite symmetric inverse semigroup. (English) Zbl 1472.20139
Reviewer: Ilinka Dimitrova (Blagoevgrad)
Categorical equivalence of clones of operations preserving a nontrivial \(n\)-equivalence. (English) Zbl 1404.08004
Rough algebraic structures corresponding to ring theory. (English) Zbl 1437.16045
Mani, A. (ed.) et al., Algebraic methods in general rough sets. Cham: Birkhäuser. Trends Math., 657-695 (2018).
MSC:
16Y80
Algebraic methods for granular rough sets. (English) Zbl 1437.03157
Mani, A. (ed.) et al., Algebraic methods in general rough sets. Cham: Birkhäuser. Trends Math., 157-335 (2018).
Centralizers of full injective transformations in the symmetric inverse semigroup. (English) Zbl 1435.20071
Reviewer: Gracinda M. S. Gomes (Lisboa)
A note on the relation between categories and hyperstructures. (English) Zbl 1391.18003
Reviewer: Ali Madanshekaf (Semnan)
Approximate equalities using generalized topological spaces. (English) Zbl 1469.54010
Chamola, Bhagwati Prasad (ed.) et al., Proceedings of the 2nd international conference on recent advances in mathematical sciences and its applications, RAMSA-2017, Uttar Pradesh, India, December 12–14, 2017. Melville, NY: American Institute of Physics (AIP). AIP Conf. Proc. 1897, Article 020034, 11 p. (2017).
MSC:
54A40
Equalities based on rough intuitionistic fuzzy topology. (English) Zbl 1447.54013
Chamola, Bhagwati Prasad (ed.) et al., Mathematical sciences and its applications. Proceedings of the international conference, Uttar Pradesh, India, December 8–10, 2016. Melville, NY: American Institute of Physics (AIP) (ISBN 978-0-7354-1470-9). AIP Conference Proceedings 1802, Article ID, 020018, 1 p. (2017).
MSC:
54A40
Generation of rough sets reducts and constructs based on inter-class and intra-class information. (English) Zbl 1373.68405
MSC:
68T37
Green’s relations in the commutative centralizers of monounary algebras. (English) Zbl 1343.08001
Reviewer: Wiesław A. Dudek (Wrocław)
Centralizers of a monounary algebra. (English) Zbl 1315.08003
Reviewer: Helmut Länger (Wien)
Towards logics of some rough perspectives of knowledge. (English) Zbl 1308.68117
Skowron, Andrzej (ed.) et al., Rough sets and intelligent systems – Professor Zdzisław Pawlak in memoriam. Volume 2. Berlin: Springer (ISBN 978-3-642-30340-1/hbk; 978-3-642-30341-8/ebook). Intelligent Systems Reference Library 43, 419-444 (2013).
Centralisers in the infinite symmetric inverse semigroup. (English) Zbl 1273.20066
Reviewer: Volodymyr Mazorchuk (Uppsala)
Centralizers in the full transformation semigroup. (English) Zbl 1267.20090
Reviewer: Volodymyr Mazorchuk (Uppsala)
MSC:
20M20
Generalization of Pawlak’s rough approximation spaces by using \(\delta \beta \)-open sets. (English) Zbl 1264.54005
MSC:
54A40
Equation \(f(p(x))=q(f(x))\) for given real functions \(p\), \(q\). (English) Zbl 1274.08022
Reviewer: J. Chvalina (Brno)
On cyclically ordered groups. (Autour des groupes cycliquement ordonnés.) (French. English summary) Zbl 1270.06012
Reviewer: Lavinia Ciungu (Craiova)
MSC:
06F15
Lattice of retracts of monounary algebras. (English) Zbl 1265.08009
Reviewer: Konrad Pióro (Warsaw)
Infinite injective transformations whose centralizers have simple structure. (English) Zbl 1214.20057
MSC:
20M20
About the fundamental relations defined on the hypergroupoids associated with binary relations. (English) Zbl 1209.20073
Reviewer: Bijan Davvaz (Yazd)
Hypergroups and \(n\)-ary relations. (English) Zbl 1194.20068
Reviewer: Wiesław A. Dudek (Wrocław)
On approximation of classifications, rough equalities and rough equivalences. (English) Zbl 1189.68135
Abraham, Ajith (ed.) et al., Rough set theory: A true landmark in data analysis. Berlin: Springer (ISBN 978-3-540-89920-4/hbk; 978-3-540-89921-1/ebook). Studies in Computational Intelligence 174, 85-133 (2009).
MSC:
68T30
A generalization of \(n\)-ary algebraic systems. (English) Zbl 1178.20058
Reviewer: Maria-Sanziana Pop (Baia Mare)
Cardinality of retracts of monounary algebras. (English) Zbl 1174.08303
MSC:
08A60
On extension of dependency and consistency degrees of two knowledges represented by covering. (English) Zbl 1203.68208
Peters, James F. (ed.) et al., Transactions on Rough Sets IX. Berlin: Springer (ISBN 978-3-540-89875-7/pbk). Lecture Notes in Computer Science 5390. Journal Subline, 351-364 (2008).
On rough equalities and rough equivalences of sets. (English) Zbl 1185.68719
Chan, Chien-Chung (ed.) et al., Rough sets and current trends in computing. 6th international conference, RSCTC 2008, Akron, OH, USA, October 23–25, 2008. Proceedings. Berlin: Springer (ISBN 978-3-540-88423-1/pbk). Lecture Notes in Computer Science 5306. Lecture Notes in Artificial Intelligence, 92-102 (2008).
On irreducible descriptive sets of attributes for information systems. (English) Zbl 1185.68694
Chan, Chien-Chung (ed.) et al., Rough sets and current trends in computing. 6th international conference, RSCTC 2008, Akron, OH, USA, October 23–25, 2008. Proceedings. Berlin: Springer (ISBN 978-3-540-88423-1/pbk). Lecture Notes in Computer Science 5306. Lecture Notes in Artificial Intelligence, 21-30 (2008).
Globals of unary algebras. (English) Zbl 1123.08001
Reviewer: Helmut Länger (Wien)
On direct limit classes of algebras. (English) Zbl 1150.08001
Reviewer: Danica Jakubíková-Studenovská (Košice)
Rudiments of rough sets. (English) Zbl 1142.68549
MSC:
68T37
Maximal compatible extensions of partial orders. (English) Zbl 1109.06001
Reviewer: V. N. Saliĭ (Saratov)
Representation of connected monounary algebras by means of irreducibles. (English) Zbl 1081.08010
MSC:
08A60
Graph homomorphisms of partial monounary algebras. (English) Zbl 1108.08002
Reviewer: Štefan Černák (Košice)
The presence of lattice theory in discrete problems of mathematical social sciences. Why. (English) Zbl 1054.91062
MSC:
91B68
Homomorphisms of algebras. (English) Zbl 1010.08004
On half cyclically ordered groups. (English) Zbl 1010.06013
MSC:
06F15
Two element direct limit classes of monounary algebras. (English) Zbl 1007.08004
Reviewer: Danica Studenovská-Jakubíková (Košice)
MSC:
08A60
Even linear simple matrix languages: formal language properties and grammatical inference. (English) Zbl 1062.68065
A note on the correspondence among entail relations, rough set dependencies, and logical consequence. (English) Zbl 0995.06001
Linear extensions of orderings. (English) Zbl 1079.06500
MSC:
06A06
DR-irreducibility of connected monounary algebras. (English) Zbl 1079.08501
Reviewer: Jiří Rachůnek (Olomouc)
MSC:
08A60
DR-irreducibility of connected monounary algebras with a cycle. (English) Zbl 1079.08500
Reviewer: Jiří Rachůnek (Olomouc)
MSC:
08A60
On axiomatic characterisations of crisp approximation operators. (English) Zbl 0985.03044
Reviewer: Anna Gomolińska (Bialystok)
Direct limits of monounary algebras. (English) Zbl 1004.08003
Reviewer: Miroslav Novotný (Brno)
Pseudodimension of relational structures. (English) Zbl 1004.03039
MSC:
03E20
Retract irreducibility of monounary algebras. (English) Zbl 0953.08004
Reviewer: M.Novotný (Brno)
MSC:
08A60
Antiatomic retract varieties of monounary algebras. (English) Zbl 0951.08001
Reviewer: M.Novotný (Brno)
Lexicographic product decompositions of cyclically ordered groups. (English) Zbl 0952.06021
Reviewer: M.Novotný (Praha)
Simple data filtering in rough set systems. (English) Zbl 0942.68031
MSC:
68P05
Some cardinal characteristics of ordered sets. (English) Zbl 0927.06001
Reviewer: J.Ježek (Praha)
The Iséki-type characterization of certain regular ordered semigroups. (English) Zbl 0928.06009
Reviewer: P.Němec (Praha)
Retract varieties of monounary algebras. (English) Zbl 0897.08006
Reviewer: M.Novotný (Brno)
Mathematical aspects of concept analysis. (English) Zbl 0885.06001
Reviewer: M.Höft (Dearborn)
Restarting automata with rewriting. (English) Zbl 1541.68203
Jeffery, Keith G. (ed.) et al., SOFSEM ’96: theory and practice of informatics. 23rd seminar on current trends in theory and practice of informatics, Milovy, Czech Republic, November 23–30, 1996. Proceedings. Berlin: Springer. Lect. Notes Comput. Sci. 1175, 401-408 (1996).
MSC:
68Q45
Construction of all homomorphisms of groupoids. (English) Zbl 0905.20048
Reviewer: H.-J.Vogel (Potsdam)
Ternary structures and partial semigroups. (English) Zbl 0899.08001
Reviewer: I.Chajda (Přerov)
Construction of all homomorphisms of mono-\(n\)-ary algebras. (English) Zbl 0870.08005
Reviewer: Ladislav Bican (Praha)
Retract irreducibility of connected monounary algebras I. (English) Zbl 0870.08006
Reviewer: M.Novotný (Brno)
MSC:
08A60
The automorphism group of a function lattice: A problem of Jónsson and McKenzie. (English) Zbl 0870.06001
On representation of ternary structures. (English) Zbl 0845.04001
Reviewer: E.Harzheim (Köln)
On extended cyclic orders. (English) Zbl 0826.06002
Reviewer: J.Niederle (Brno)
Relations and topologies. (English) Zbl 0797.04002
Reviewer: V.Novák (Brno)
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