PD Dr. Jörg Koppitz

freier Mitarbeiter

Kontakt
Raum:
II.09.3.13
Telefon:
+49 331 977-1551

Seminar zur Begriffsanalyse

Literatur: Formale Begriffsanalyse: Mathematische Grundlagen (Formal Concept Analysis: Mathematical Foundations), B. Ganter und R. Wille, Springer Verlag

 

Mathematik II für Informatiker
Die Klausur wird am 17. Juli 2018 in dem zeitlichen und örtlichen Rahmen der Vorlesung geschrieben. Der zweite Prüfungstermin ist der 25.09.2018. Eine Zulassung zu der Klausur (Modulprüfung) wird genau dann ausgesprochen, wenn Sie 75 Punkte oder mehr bei den Übungsaufgaben erreicht haben. Es gibt genau 12 Übungsblätter, welche jeweils mit genau 10 Punkten bewertet werden.  Die Übungsblätter sind von den Studierenden einzeln (nicht in Gruppen) handgeschrieben jeweils am Tag der Vorlesung vor der Vorlesung abzugeben. Computerausdrucke sind leider nicht zulässig. Eine spätere Abgabe (aus welchen Gründen auch immer) kann leider auch nicht akzeptiert werden.
Am 22. Mai wird ein Zwischentest geschrieben. Dieser wird mit 20 Punkten bewertet. Falls Sie mehr als 10 Punkte im Zwischentest erreicht haben werden,  geht die gesamte Punktzahl in die zu erreichende Punktzahl zur Prüfungszulassung ein, vorausgesetzt,  Sie wählen den ersten Prüfungstermin. Falls sie weniger als 11 Punkte erreicht haben, ist eine Anrechnung dieser Punktzahl für die Prüfungszulassung nicht möglich.
In den Übungen werden ausschließlich die aktuell abzugebenden Übungsaufgaben besprochen. Sie können die Übungsgruppe jederzeit wechseln und an mehreren Übungen teilnehmen. Das Tutorium von Frau Dr. Elke Rosenberger ist der Nachbereitung der Übungsaufgaben vorbehalten. Hier können auch spezielle Fragen geklärt werden. Fragen, welche die Bewertung von Übungsaufgaben betreffen, werden ausschließlich in diesem Tutorium behandelt.

Literatur: Mathematik für Informatiker Bände 1 &2, Diskrete Mathematik und Lineare Algebra, G Teschl und S. Teschl, Springer Verlag

  • Discrete Mathematics:

    • Essential variables in n-valued functions
    • Arity-gap in n-valued functionsPresentation of n-valued functions
    • Essential positions in trees

  • Semigroup theoretical problems

    • Order preserving transformation semigroupsOrientation preserving Transformation semigroups
    • Maximal subsemigroups of transformation semigroups
    • Transformation semigroups on infinite sets
    • Coregular semigroups

  • Universal Algebra

    • Hypersubstituions and derived algebras
    • Solid classes of universal algebras
    • Clones of operations and relationsF-algebras and F-coalgebras
    • Varieties of algebraic structures

Publications

2017 | On a Semigroup of n-ary Operations | Susanti, Y., Koppitz, J. Zeitschrift: Far East Journal of Mathematical Sciences (FJMS) Band: 102 no.4

On a Semigroup of n-ary Operations

Autoren: Susanti, Y., Koppitz, J. (2017)

Zeitschrift:
Far East Journal of Mathematical Sciences (FJMS)
Band:
102 no.4

2017 | Regular Semigroups of Partial Transformations Preserving a Fence | Lohapan, L., Koppitz, J. Zeitschrift: Novi Sad Journal of Mathematics (NSJOM) Band: 47 no. 2

Regular Semigroups of Partial Transformations Preserving a Fence

Autoren: Lohapan, L., Koppitz, J. (2017)

Zeitschrift:
Novi Sad Journal of Mathematics (NSJOM)
Band:
47 no. 2

2017 | Generating Sets of Semigroups of Partial Transformations Preserving a Zig-Zag Order on N | Dimitrova, I, Koppitz, J, Lohapan, L. Zeitschrift: International Journal of Pure and Applied Mathematics Band: 12 no. 2

Generating Sets of Semigroups of Partial Transformations Preserving a Zig-Zag Order on N

Autoren: Dimitrova, I, Koppitz, J, Lohapan, L. (2017)

Zeitschrift:
International Journal of Pure and Applied Mathematics
Band:
12 no. 2

2017 | Relations on a Semigroup of Sets of Transformations with Restricted Range. | Anantayasethi, A., Koppitz, J. Zeitschrift: Comptes rendus de l’Acad´emie bulgare des Sciences Band: 70 n0. 12

Relations on a Semigroup of Sets of Transformations with Restricted Range.

Autoren: Anantayasethi, A., Koppitz, J. (2017)

Zeitschrift:
Comptes rendus de l’Acad´emie bulgare des Sciences
Band:
70 n0. 12

2017 | A Note on Generators of the endomorphism Semigroup of an infinite countable chain, | Dimitrova, I., Fernandes, V.H. and Koppitz, Zeitschrift: J. Algebra Appl. Band: 16

A Note on Generators of the endomorphism Semigroup of an infinite countable chain,

Autoren: Dimitrova, I., Fernandes, V.H. and Koppitz, (2017)

Zeitschrift:
J. Algebra Appl.
Band:
16

2016 | Generating sets of infinite full transformation semigroups with restricted range | Tinpun, K. and Koppitz J Zeitschrift: Acta Sci. Math. (Szeged) Band: 82

Generating sets of infinite full transformation semigroups with restricted range

Autoren: Tinpun, K. and Koppitz J (2016)

Zeitschrift:
Acta Sci. Math. (Szeged)
Band:
82

2016 | Stable varieties of semigroups and groupoids | Koppitz, J. and Shtrakov, Sl. Zeitschrift: Algebra Universalis Band: 75 no. 1

Stable varieties of semigroups and groupoids

Autoren: Koppitz, J. and Shtrakov, Sl. (2016)

Zeitschrift:
Algebra Universalis
Band:
75 no. 1

2016 | Relative Rank of the Finite Full Transformation Semigroup with Restricted Range | Tinpun, K. and Koppitz, J. Zeitschrift: Acta Math. Univ. Comenianae Band: Vol. LXXXV, No. 2

Relative Rank of the Finite Full Transformation Semigroup with Restricted Range

Autoren: Tinpun, K. and Koppitz, J. (2016)

Zeitschrift:
Acta Math. Univ. Comenianae
Band:
Vol. LXXXV, No. 2

2016 | Maximal subsemigroups of some semigroups of order-preserving mappings on a countably infinite set | Koppitz, J. and Musunthia, T. Zeitschrift: Forum Mathematicum Link zur Publikation

Maximal subsemigroups of some semigroups of order-preserving mappings on a countably infinite set

Autoren: Koppitz, J. and Musunthia, T. (2016)

Zeitschrift:
Forum Mathematicum

2016 | On a Semigroup of Sets of Transformations with Restricted Range | Anantayasthi, A, and Koppitz, J. Zeitschrift: Thai Journal of Mathematics Band: 14, no. 3

On a Semigroup of Sets of Transformations with Restricted Range

Autoren: Anantayasthi, A, and Koppitz, J. (2016)

Zeitschrift:
Thai Journal of Mathematics
Band:
14, no. 3

2015 | Gröbner-Shirshov bases and embedding of a semigroup in a group | Karpuz, E.G., Cevik, A.S., Firat, A. and Koppitz, J. Zeitschrift: Adv. Stud. Contemp. Math. (Kyugshang) Band: 25 n0. 4

Gröbner-Shirshov bases and embedding of a semigroup in a group

Autoren: Karpuz, E.G., Cevik, A.S., Firat, A. and Koppitz, J. (2015)

Zeitschrift:
Adv. Stud. Contemp. Math. (Kyugshang)
Band:
25 n0. 4

2015 | Separation of On from its proper subsemigroups by a single identity | Koppitz, J. Zeitschrift: Semigroup Forum Band: 91, No. 1

Separation of On from its proper subsemigroups by a single identity

Autoren: Koppitz, J. (2015)

Zeitschrift:
Semigroup Forum
Band:
91, No. 1

2015 | A Note on finite generated subsemigroups of T(X,Y), | Lekkoksung, N. and Koppitz, J. Zeitschrift: Math. Appl Band: 4

A Note on finite generated subsemigroups of T(X,Y),

Autoren: Lekkoksung, N. and Koppitz, J. (2015)

Zeitschrift:
Math. Appl
Band:
4

2014 | he subsemigroups of the full transformation semigroup T_n in the ideal K(n,2) satisfying x^k=x | Jende, A., Koppitz, J. and Musunthia, T. Zeitschrift: Southeast Asian Bulletin of Mathematics Band: 34

he subsemigroups of the full transformation semigroup T_n in the ideal K(n,2) satisfying x^k=x

Autoren: Jende, A., Koppitz, J. and Musunthia, T. (2014)

Zeitschrift:
Southeast Asian Bulletin of Mathematics
Band:
34

2014 | Maximal Subsemigroups containing a particular semigroup | Koppitz, J. and Musunthia, T. Zeitschrift: Mathematica Slovaca Band: 64

Maximal Subsemigroups containing a particular semigroup

Autoren: Koppitz, J. and Musunthia, T. (2014)

Zeitschrift:
Mathematica Slovaca
Band:
64

2013 | Category Equivalences of Clones of Operations Preserving Unary Operations | Koppitz, J. and Supaporn, W. Zeitschrift: Comptes rendus de l´Acadèmie bulgare des Sciences Band: 66 no. 2

Category Equivalences of Clones of Operations Preserving Unary Operations

Autoren: Koppitz, J. and Supaporn, W. (2013)

Zeitschrift:
Comptes rendus de l´Acadèmie bulgare des Sciences
Band:
66 no. 2

2013 | Some fixed-point results on (generalized) Bruck-Reilly *-extensions of monoids | Karpuz, E.G., Cevik, A.S., Koppitz, J. and Cangul, I.N. Zeitschrift: Fixed Point Theory Appl. Link zur Publikation

Some fixed-point results on (generalized) Bruck-Reilly *-extensions of monoids

Autoren: Karpuz, E.G., Cevik, A.S., Koppitz, J. and Cangul, I.N. (2013)

Zeitschrift:
Fixed Point Theory Appl.

2012 | On the Monoid of All Partial Order-preserving Extensive Transformations | Dimitrova, I. and Koppitz, J. Zeitschrift: Communications in Algebra Band: 40

On the Monoid of All Partial Order-preserving Extensive Transformations

Autoren: Dimitrova, I. and Koppitz, J. (2012)

Zeitschrift:
Communications in Algebra
Band:
40

2012 | The maximal subsemigroups of semigroups of transformations preserving or reversing the orientation on a finite chain | Dimitrova, I., Fernandes, V.H. and Koppitz, J. Zeitschrift: Publications Mathematicae Debrecen Band: 81 no. 1

The maximal subsemigroups of semigroups of transformations preserving or reversing the orientation on a finite chain

Autoren: Dimitrova, I., Fernandes, V.H. and Koppitz, J. (2012)

Zeitschrift:
Publications Mathematicae Debrecen
Band:
81 no. 1

2012 | Finite Symmetric functions with non-trivial arity gap | Shtrakov, Sl. and Koppitz, J. Zeitschrift: Serdica J. Computing Band: 6

Finite Symmetric functions with non-trivial arity gap

Autoren: Shtrakov, Sl. and Koppitz, J. (2012)

Zeitschrift:
Serdica J. Computing
Band:
6

2011 | On the maximal regular subsemigroups of ideals of order-preserving or order-reversing transformations | Dimitrova, I. and Koppitz, J. Zeitschrift: Semigroup Forum Band: 82

On the maximal regular subsemigroups of ideals of order-preserving or order-reversing transformations

Autoren: Dimitrova, I. and Koppitz, J. (2011)

Zeitschrift:
Semigroup Forum
Band:
82

2011 | Coregular Semigroups of full Transformations | Dimitrova, I. and Koppitz, J. Zeitschrift: Demonstratio Mathematica Band: Vol. XLIV, No. 4

Coregular Semigroups of full Transformations

Autoren: Dimitrova, I. and Koppitz, J. (2011)

Zeitschrift:
Demonstratio Mathematica
Band:
Vol. XLIV, No. 4

2010 | On Finite Functions with Non-trivial Arity Gap | Shtrakov, Sl. and Koppitz, J. Zeitschrift: Discussiones Mathematicae General Algebra and Applications Band: 30

On Finite Functions with Non-trivial Arity Gap

Autoren: Shtrakov, Sl. and Koppitz, J. (2010)

Zeitschrift:
Discussiones Mathematicae General Algebra and Applications
Band:
30

2010 | On some Anti-inverse Transformation Semigroups | Dimitrova, I. and Koppitz, J. Zeitschrift: Comptes redndus de I`Académie bulgare des Sciences Band: 63 no. 6

On some Anti-inverse Transformation Semigroups

Autoren: Dimitrova, I. and Koppitz, J. (2010)

Zeitschrift:
Comptes redndus de I`Académie bulgare des Sciences
Band:
63 no. 6

2010 | he relationship between proper and inner hypersubstitutions for varieties of rings | Koppitz, J. and Musunthia, T. Zeitschrift: Novi Sad J. Math Band: 40 n0. 3

he relationship between proper and inner hypersubstitutions for varieties of rings

Autoren: Koppitz, J. and Musunthia, T. (2010)

Zeitschrift:
Novi Sad J. Math
Band:
40 n0. 3

2009 | All Reg-solid varieties of commutative semigroups | Koppitz, J. Zeitschrift: Semigroup Forum Band: 78 no.1

All Reg-solid varieties of commutative semigroups

Autoren: Koppitz, J. (2009)

Zeitschrift:
Semigroup Forum
Band:
78 no.1

2009 | The maximal subsemigroupoups of the ideals of some semigroups of partial injections | Dimitrova, I. and Koppitz, J. Zeitschrift: Discussiones Mathematicae General Algebra and Applications Band: 29 no. 2

The maximal subsemigroupoups of the ideals of some semigroups of partial injections

Autoren: Dimitrova, I. and Koppitz, J. (2009)

Zeitschrift:
Discussiones Mathematicae General Algebra and Applications
Band:
29 no. 2

2008 | The Greatest Regular-solid Variety of Semigroups | Denecke, K., Koppitz J. and Pabhapote, N. Zeitschrift: Discussiones Mathematicae General Algebra and Applications Band: 28

The Greatest Regular-solid Variety of Semigroups

Autoren: Denecke, K., Koppitz J. and Pabhapote, N. (2008)

Zeitschrift:
Discussiones Mathematicae General Algebra and Applications
Band:
28

2008 | Power Clones and Non-Deterministic Hypersubstitutions, | Denecke, K., Glubudom, P. and Koppitz, J. Zeitschrift: Asian-European Journal of Mathematics Band: 1 no. 2

Power Clones and Non-Deterministic Hypersubstitutions,

Autoren: Denecke, K., Glubudom, P. and Koppitz, J. (2008)

Zeitschrift:
Asian-European Journal of Mathematics
Band:
1 no. 2

2008 | On the Maximal Subsemigroups of Some Transformation Semigroups | Dimitrova, I. and Koppitz, J. Zeitschrift: Asian-European Journal of Mathematics Band: 1 no. 2

On the Maximal Subsemigroups of Some Transformation Semigroups

Autoren: Dimitrova, I. and Koppitz, J. (2008)

Zeitschrift:
Asian-European Journal of Mathematics
Band:
1 no. 2

2007 | Maximal Submonoids of Monoids of Hypersubstitutions | Dimitrova, I. and Koppitz, J. Zeitschrift: Discussiones Mathematicae General Algebra and Applications Band: 27

Maximal Submonoids of Monoids of Hypersubstitutions

Autoren: Dimitrova, I. and Koppitz, J. (2007)

Zeitschrift:
Discussiones Mathematicae General Algebra and Applications
Band:
27

2007 | he degree of proper hypersubstitutions | Denecke, K., Koppitz, J. and Srithus, R. Zeitschrift: Sci. Math. Jpn. Band: 66 no. 2

he degree of proper hypersubstitutions

Autoren: Denecke, K., Koppitz, J. and Srithus, R. (2007)

Zeitschrift:
Sci. Math. Jpn.
Band:
66 no. 2

2007 | N-fluid Varieties | Denecke, K., Koppitz, J. and Srithus, R. Zeitschrift: Sci. Math. Jpn. Band: 65 no. 1

N-fluid Varieties

Autoren: Denecke, K., Koppitz, J. and Srithus, R. (2007)

Zeitschrift:
Sci. Math. Jpn.
Band:
65 no. 1

2006 | Multi-Hypersubstitutions and Colored Solid Varieties | Denecke, K., Koppitz, J. and Shtrakov, Sl., Zeitschrift: International Journal of Algebra and Computation Band: 16 no. 4

Multi-Hypersubstitutions and Colored Solid Varieties

Autoren: Denecke, K., Koppitz, J. and Shtrakov, Sl., (2006)

Zeitschrift:
International Journal of Algebra and Computation
Band:
16 no. 4

2006 | Free Systems of Algebras and Ultraclosed Classes | hron, R. and Koppitz, J. Zeitschrift: Acta Math. Univ. Comenianae Band: Vol. LXXV no. 1

Free Systems of Algebras and Ultraclosed Classes

Autoren: hron, R. and Koppitz, J. (2006)

Zeitschrift:
Acta Math. Univ. Comenianae
Band:
Vol. LXXV no. 1

2005 | Presolid Varieties of n-semigroups | Chantasartrassmee, A. and Koppitz, J. Zeitschrift: Discussiones Mathematicae General Algebra and Applications Band: 25

Presolid Varieties of n-semigroups

Autoren: Chantasartrassmee, A. and Koppitz, J. (2005)

Zeitschrift:
Discussiones Mathematicae General Algebra and Applications
Band:
25

2005 | On mappings of terms determined by hypersubstituions | Koppitz, J. and Shtrakov, Sl. Zeitschrift: Journal of Algebra and Discrete Mathematics Band: 3

On mappings of terms determined by hypersubstituions

Autoren: Koppitz, J. and Shtrakov, Sl. (2005)

Zeitschrift:
Journal of Algebra and Discrete Mathematics
Band:
3

2004 | Hypersubstitutions and Groups | Koppitz, J. Zeitschrift: Novi Sad Math. Band: 34 no.2

Hypersubstitutions and Groups

Autoren: Koppitz, J. (2004)

Zeitschrift:
Novi Sad Math.
Band:
34 no.2

2003 | Lattice-theoretically characterized classes of finite bands | Koppitz, J. and Thron, R. Zeitschrift: Archivum Mathematicum (Brno) Band: 39

Lattice-theoretically characterized classes of finite bands

Autoren: Koppitz, J. and Thron, R. (2003)

Zeitschrift:
Archivum Mathematicum (Brno)
Band:
39

2002 | Equational Theories generated by Hypersubstitutions of Type (n) | Denecke, K., Koppitz, J. and Niwczyk, St. Zeitschrift: International Journal of Algebra and Computation Band: 12 no. 6

Equational Theories generated by Hypersubstitutions of Type (n)

Autoren: Denecke, K., Koppitz, J. and Niwczyk, St. (2002)

Zeitschrift:
International Journal of Algebra and Computation
Band:
12 no. 6

2002 | Solid varieties of arbitrary type | Denecke, K., Koppitz, J. and Wismath, S.L., Zeitschrift: Algebra Universalis Band: 48

Solid varieties of arbitrary type

Autoren: Denecke, K., Koppitz, J. and Wismath, S.L., (2002)

Zeitschrift:
Algebra Universalis
Band:
48

2001 | Closure Operators and Generating Sets | Thron, R. and Koppitz, J. Zeitschrift: Mathematica Slovaca Band: 51

Closure Operators and Generating Sets

Autoren: Thron, R. and Koppitz, J. (2001)

Zeitschrift:
Mathematica Slovaca
Band:
51

2001 | rongly fluid and weakly unsolid varieties | Arworn, Sr., Denecke, K. and Koppitz, J. Zeitschrift: Scientiae Matematicae Japoniacae Band: 54 no. 1

rongly fluid and weakly unsolid varieties

Autoren: Arworn, Sr., Denecke, K. and Koppitz, J. (2001)

Zeitschrift:
Scientiae Matematicae Japoniacae
Band:
54 no. 1

2001 | The semantical hyperunification problem | Denecke, K., Koppitz, J. and Wismath, S.L Zeitschrift: Discussiones Mathematicae General Algebra and Applications Band: 21

The semantical hyperunification problem

Autoren: Denecke, K., Koppitz, J. and Wismath, S.L (2001)

Zeitschrift:
Discussiones Mathematicae General Algebra and Applications
Band:
21

2001 | The depth of a hypersubstitution | Denecke, K., Koppitz, J. and Shtrakov Sl., Zeitschrift: Journal of Automata, Languages and Combinatorics Band: 6 no. 3

The depth of a hypersubstitution

Autoren: Denecke, K., Koppitz, J. and Shtrakov Sl., (2001)

Zeitschrift:
Journal of Automata, Languages and Combinatorics
Band:
6 no. 3

2001 | Essential variables in hypersubstitutions | Denecke, K. and Koppitz, J. Zeitschrift: Algebra Universalis Band: 46

Essential variables in hypersubstitutions

Autoren: Denecke, K. and Koppitz, J. (2001)

Zeitschrift:
Algebra Universalis
Band:
46

2000 | Hyperidentities for Varieties of Star bands | Koppitz, J. and Wismath, S.L. Zeitschrift: Sci. Math. Band: 3

Hyperidentities for Varieties of Star bands

Autoren: Koppitz, J. and Wismath, S.L. (2000)

Zeitschrift:
Sci. Math.
Band:
3

2000 | All 2-solid varieties of semigroups | Koppitz, J Zeitschrift: Semigroup Forum Band: 60

All 2-solid varieties of semigroups

Autoren: Koppitz, J (2000)

Zeitschrift:
Semigroup Forum
Band:
60

2000 | Fluid, unsolid and completely unsolid varieties | Denecke, K. and Koppitz, J. Zeitschrift: Algebra Colloquium Band: 7 no. 4

Fluid, unsolid and completely unsolid varieties

Autoren: Denecke, K. and Koppitz, J. (2000)

Zeitschrift:
Algebra Colloquium
Band:
7 no. 4

1999 | Finite Relational Disjunctions | Thron, R. and Koppitz, J. Zeitschrift: Algebra Colloquium Band: 6 no. 3

Finite Relational Disjunctions

Autoren: Thron, R. and Koppitz, J. (1999)

Zeitschrift:
Algebra Colloquium
Band:
6 no. 3

1998 | Derived theories and derived equational theories | Denecke, K., Koppitz, J. and Marszałek, R. Zeitschrift: International Journal of Algebra and Computation Band: 6 no. 2

Derived theories and derived equational theories

Autoren: Denecke, K., Koppitz, J. and Marszałek, R. (1998)

Zeitschrift:
International Journal of Algebra and Computation
Band:
6 no. 2

1998 | Finite monoids of hypersubstitutions of type τ = (2) | Denecke, K. and Koppitz, J. Zeitschrift: Semigroup Forum Band: 56

Finite monoids of hypersubstitutions of type τ = (2)

Autoren: Denecke, K. and Koppitz, J. (1998)

Zeitschrift:
Semigroup Forum
Band:
56

1998 | M-solid monoids of hypersubstitutions of type τ = (2) | Denecke, K. and Koppitz, J. Zeitschrift: Semigroup Forum Band: 57

M-solid monoids of hypersubstitutions of type τ = (2)

Autoren: Denecke, K. and Koppitz, J. (1998)

Zeitschrift:
Semigroup Forum
Band:
57

1997 | Maps between M-solid Varieties of semigroups | Denecke, K., Koppitz, J. and Wismath, S.L., Zeitschrift: Discussiones Mathematicae Algebra and Stochastic Methods Band: 17

Maps between M-solid Varieties of semigroups

Autoren: Denecke, K., Koppitz, J. and Wismath, S.L., (1997)

Zeitschrift:
Discussiones Mathematicae Algebra and Stochastic Methods
Band:
17

1997 | M-solid subvarieties of some varieties of commutative semigroups | Koppitz, J. Zeitschrift: Serdica Mathematical Journal Band: 23

M-solid subvarieties of some varieties of commutative semigroups

Autoren: Koppitz, J. (1997)

Zeitschrift:
Serdica Mathematical Journal
Band:
23

1996 | Hyperidentities and Subvarieties of Varieties of commutative nilpotent Semigroups | Koppitz, J. Zeitschrift: Comptes rendus de l´Acadèmie bulgare des Sciences Band: 49 no. 7-8

Hyperidentities and Subvarieties of Varieties of commutative nilpotent Semigroups

Autoren: Koppitz, J. (1996)

Zeitschrift:
Comptes rendus de l´Acadèmie bulgare des Sciences
Band:
49 no. 7-8

1995 | Pre-Solid Varieties of Semigroups | Denecke, K. and Koppitz, J. Zeitschrift: Archivum Mathematicum (Brno) Band: 31

Pre-Solid Varieties of Semigroups

Autoren: Denecke, K. and Koppitz, J. (1995)

Zeitschrift:
Archivum Mathematicum (Brno)
Band:
31

1995 | Pre-Solid Varieties of Commutative Semigroups | Denecke, K. and Koppitz, J. Zeitschrift: Tatra Mountains Math. Publ. Band: 5

Pre-Solid Varieties of Commutative Semigroups

Autoren: Denecke, K. and Koppitz, J. (1995)

Zeitschrift:
Tatra Mountains Math. Publ.
Band:
5

1995 | M-Solid Varieties of Semigroups | Denecke, K. and Koppitz, J. Zeitschrift: Discussiones Mathematicae Algebra and Stochastic Methods Band: 15

M-Solid Varieties of Semigroups

Autoren: Denecke, K. and Koppitz, J. (1995)

Zeitschrift:
Discussiones Mathematicae Algebra and Stochastic Methods
Band:
15

1994 | Hyperassociative Varieties of Semigroups | Denecke, K. and Koppitz, J. Zeitschrift: Semigroup Forum Band: 49

Hyperassociative Varieties of Semigroups

Autoren: Denecke, K. and Koppitz, J. (1994)

Zeitschrift:
Semigroup Forum
Band:
49