| Publication | Date of Publication | Type |
|---|
| Formations of orthodox semigroups | 2024-01-09 | Paper |
| Formations of inverse semigroups | 2022-08-11 | Paper |
| ω♯-Algebras | 2021-10-28 | Paper |
| A topological shuttle between inequalities and pseudoinequalities | 2021-06-09 | Paper |
| On formations of monoids | 2020-05-29 | Paper |
| On the semigroup rank of a group | 2019-11-29 | Paper |
| Congruences on direct products of transformation and matrix monoids | 2018-12-21 | Paper |
| Ehresmann monoids: adequacy and expansions | 2018-09-24 | Paper |
| Takahasi semigroups | 2017-10-12 | Paper |
| Ehresmann monoids. | 2015-09-25 | Paper |
| The semigroup ring of a restriction semigroup with an inverse skeleton. | 2015-06-25 | Paper |
| Membership of \(\mathbf A\vee\mathbf G\) for classes of finite weakly abundant semigroups. | 2015-03-03 | Paper |
| John Macintosh Howie: work and legacy | 2014-11-03 | Paper |
| Forecasting the yield curve for the euro region | 2012-12-27 | Paper |
| Left adequate and left Ehresmann monoids. II. | 2012-04-30 | Paper |
| LEFT ADEQUATE AND LEFT EHRESMANN MONOIDS | 2012-01-11 | Paper |
| The cardinal and the idempotent number of various monoids of transformations on a finite chain. | 2011-02-10 | Paper |
| Extensions and covers for semigroups whose idempotents form a left regular band. | 2010-09-22 | Paper |
| The generalized Szendrei expansion of an \(\mathcal R\)-unipotent semigroup. | 2009-12-29 | Paper |
| THE FREE AMPLE MONOID | 2009-07-14 | Paper |
| Congruences on monoids of transformations preserving the orientation on a finite chain. | 2009-04-29 | Paper |
| Fundamental semigroups having a band of idempotents. | 2008-12-02 | Paper |
| Almost Factorizable Weakly Ample Semigroups | 2007-12-17 | Paper |
| Even covers for left ample semigroups. | 2007-07-19 | Paper |
| The generalized prefix expansion of a weakly left ample semigroup. | 2006-09-12 | Paper |
| PROPER COVERS OF AMPLE MONOIDS | 2006-08-10 | Paper |
| Proper extensions of weakly left ample semigroups. | 2006-06-27 | Paper |
| Presentations of the Schützenberger Product of n Groups | 2006-05-29 | Paper |
| Finite abundant semigroups in which the idempotents form a subsemigroup. | 2006-04-28 | Paper |
| CONGRUENCES ON MONOIDS OF ORDER-PRESERVING OR ORDER-REVERSING TRANSFORMATIONS ON A FINITE CHAIN | 2005-10-18 | Paper |
| PRESENTATIONS FOR SOME MONOIDS OF PARTIAL TRANSFORMATIONS ON A FINITE CHAIN | 2005-05-23 | Paper |
| An application of a theorem of Ash to finite covers. | 2005-04-07 | Paper |
| Presentations for some monoids of injective partial transformations on a finite chain. | 2005-03-21 | Paper |
| Finite proper covers in a class of finite semigroups with commuting idempotents | 2003-08-31 | Paper |
| Fundamental Ehresmann semigroups | 2002-08-21 | Paper |
| On generators and relations for unions of semigroups | 2001-10-23 | Paper |
| On a class of lattice ordered inverse semigroups | 2001-07-26 | Paper |
| Graph expansions of unipotent monoids | 2001-05-06 | Paper |
| PROPER WEAKLY LEFT AMPLE SEMIGROUPS | 2000-11-22 | Paper |
| Primitive inverse congruences on categorical semigroups | 2000-07-09 | Paper |
| Idempotent pure extensions by inverse semigroups via quivers | 2000-04-06 | Paper |
| A Munn type representation for a class of \(E\)-semiadequate semigroups | 1999-12-20 | Paper |
| Enlargements, semiabundancy and unipotent monoids1 | 1999-05-05 | Paper |
| Semigroups with zero whose idempotents form a subsemigroup | 1999-02-04 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4892385 | 1997-02-12 | Paper |
| Idempotent endomorphisms of an independence algebra of finite rank | 1995-12-18 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4277457 | 1995-02-08 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4306170 | 1994-10-13 | Paper |
| Proper left type-A monoids revisited | 1994-02-07 | Paper |
| A characterization of the group congruences on a semigroup | 1993-04-01 | Paper |
| On the ranks of certain semigroups of order-preserving transformations | 1993-03-01 | Paper |
| Left proper \(E\)-dense monoids | 1993-01-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4011605 | 1992-09-27 | Paper |
| The Szendrei expansion of a semigroup | 1990-01-01 | Paper |
| Orthodox congruences on regular semigroups | 1988-01-01 | Paper |
| On the ranks of certain finite semigroups of transformations | 1987-01-01 | Paper |
| Nilpotents in finite symmetric inverse semigroups | 1987-01-01 | Paper |
| The lattice of R-unipotent congruences on a regular semigroup | 1986-01-01 | Paper |
| Some results on congruences on R-unipotent semigroups | 1986-01-01 | Paper |
| R-unipotent congruences on regular semigroups | 1985-01-01 | Paper |
| On left quasinormal orthodox semigroups | 1983-01-01 | Paper |
| On the compatibility of the natural order on a regular semigroup | 1983-01-01 | Paper |
