Semigroup Forum

Article	Citations
Stability for coupled waves with locally disturbed Kelvin–Voigt damping	11
Bi-atomic classes of positive semirings	10
The word problem for one-relation monoids: a survey	10
Canonical trace ideal and residue for numerical semigroup rings	10
The stylic monoid	9
On Ehresmann semigroups	8
Levi-Civita functional equations and the status of spectral synthesis on semigroups	7
From A to B to Z	7
Set-theoretic solutions of the Yang–Baxter equation associated to weak braces	6
Identities of the stylic monoid	6
Levi-Civita functional equations and the status of spectral synthesis on semigroups-II	6
Trace- and pseudo-products: restriction-like semigroups with a band of projections	6
A network of congruences on an ample semigroup	5
Cross connections for normal bands and partial order on morphisms	5
On the word problem for special monoids	5
Spectrum and convergence of eventually positive operator semigroups	5
Semigroups of transformations whose restrictions belong to a given semigroup	5
Final state observability estimates and cost-uniform approximate null-controllability for bi-continuous semigroups	5
Partial automorphisms and injective partial endomorphisms of a finite undirected path	4
On transfer Krull monoids	4
Hypercyclic sequences of weighted translations on hypergroups	4
Two weaker variants of congruence permutability for monoid varieties	4
Orientation-preserving and orientation-reversing mappings: a new description	4
Topologies on the symmetric inverse semigroup	4
An Ehresmann-Schein-Nambooripad type theorem for DRC-semigroups	4

Commutative monoid homology	4
Limit varieties of J-trivial monoids	4
Semiring identities of finite inverse semigroups	4
The rank of the inverse semigroup of partial automorphisms on a finite fence	4
Constructing uninorms via ordinal sums in the sense of A. H. Clifford	4
New representations of algebraic domains and algebraic L-domains via closure systems	4
Baer sums for a natural class of monoid extensions	4
An extension of the Rådström cancellation theorem to cornets	3
Chinese syzygies by insertions	3
Endotypes of partial equivalence relations	3
A construction of the free digroup	3
A note on locally compact subsemigroups of compact groups	3
The inheritance of symmetry conditions in commutative semigroup cohomology	3
Abelian and symmetric generalized digroups	3
Self-similar monoids related to Hahn groups	3
Congruences on quasi completely regular semirings	3
On the globalization of geometric partial (co)modules in the categories of topological spaces and algebras	3
Tropical representations and identities of the stylic monoid	3
The ideals of the monoid of all partial order-preserving extensive transformations	3
Unique factorization properties in commutative monoid rings with zero divisors	3
Abundant semigroup algebras which are Azumaya	3
Free product on semihypergroups	3
On the infinitesimal generator of an optimal state semigroup	2
Distribution of genus among numerical semigroups with fixed Frobenius number	2
A monoid structure on the set of all binary operations over a fixed set	2
Right-orderability versus left-orderability for monoids	2
Ideal Connes amenability of $$l^{1}$$-Munn algebras and its application to semigroup algebras	2
Regular, unit-regular, and idempotent elements of semigroups of transformations that preserve a partition	2
Characterization of Orlicz admissibility	2
Formations of inverse semigroups	2
Tied monoids	2
Stability of characters and filters for weighted semilattices	2
A simple spectral theory of polynomially bounded solutions and applications to differential equations	2
Comments on “Semigroups of transformations whose restrictions belong to a given semigroup”	2
Atoms of root-closed submonoids of $$\mathbb {Z}^2$$	2
Periodic behavior in families of numerical and affine semigroups via parametric Presburger arithmetic	2
Semigroups and evolutionary equations	2
Strong atoms in monadically Krull monoids	2
A survey of Schreier-type extensions of monoids	2
Johnson pseudo-contractibility of certain semigroup algebras. II	2
Isomorphisms of semirings of continuous binary relations on topological spaces	2
A formula for the conductor of a semimodule of a numerical semigroup with two generators	2
Topological properties of the binary supremum function	2
The Lawson number of a semitopological semilattice	2
Unit-regular and semi-balanced elements in various semigroups of transformations	2
Various types of completeness in topologized semilattices	2
Spectral properties of locally eventually positive operator semigroups	2
On covers of acts over monoids with condition $$(PF'')$$ and envelopes of S-acts	2
Scalable monoids and quantity calculus	2
On the atomic structure of torsion-free monoids	2

Endomorphisms of semigroups of oriented transformations	2
$$({{\mathscr {F}}},{{\mathscr {G}}})$$-abundant semigroups	2
On varieties of flat nil-semirings	2
Levi-Civita functional equations on commutative monoids with tractable prime ideals	1
Complete classification of finite semigroups for which the inverse monoid of local automorphisms is a $$\varDelta $$-semigroup	1
Editorial Note	1
Algebraic characterizations of some relative notions of size	1
On the structure of semigroups whose regular elements are completely regular	1
Numerical semigroups generated by quadratic sequences	1
Perturbation theory for fractional evolution equations in a Banach space	1
$$\aleph _0$$-categoricity of semigroups II	1
A simple proof of a multidimensional Borg–Levinson type theorem	1
Asymptotic behavior and representation of solutions to a Volterra kind of equation with a singular kernel	1
Elaborating the word problem for free idempotent-generated semigroups over the full transformation monoid	1
Quasi-polynomial growth of numerical and affine semigroups with constrained gaps	1
Lattices of varieties of plactic-like monoids	1
Arithmetic of additively reduced monoid semidomains	1
On the value set of 1-forms for plane branches	1
Uniform stability of a family of resolvent operators in Hilbert spaces	1
Large sets near idempotent and its product	1
Hofmann–Mislove through the lenses of Priestley	1
Well-posedness of non-autonomous transport equation on metric graphs	1
Boundedness of partial difference transforms for heat semigroups generated by discrete Laplacian	1
Extensions of dissipative and symmetric operators	1
Outer inverses in semigroups belonging to the prescribed Green’s equivalence classes	1
Globalization of partial actions of semigroups	1
On the structure of glrac semigroups	1
The monoid of orientation-preserving k-extensive transformations	1
Remark on the identities of the grammic monoid with three generators	1
Well-posedness and asynchronous exponential growth of an age-weight structured fish population model with nonautonomous past	1
Growth bounds for $$\alpha $$-times resolvent families	1
On bases of identities of finite central locally orthodox completely regular semigroups	1
Zigzag structures in IP* sets	1
Partition regularity of polynomial systems near zero	1
On subamalgams of partially ordered monoids	1
Well-posedness and stability results for some nonautonomous abstract linear hyperbolic equations with memory	1
Finitely and non-finitely related words	1
Force recurrence of semigroup actions	1
Tropical linear representations of the Chinese monoid	1
Property A for hypergroups	1
Elementary characterization of essential $${\mathscr {F}}$$-sets and its combinatorial consequences	1
Convolution algebra for extended Feller convolution	1
On certain semigroups of transformations whose restrictions belong to a given semigroup	1
Grammic monoids with three generators	1
On d-semigroups, r-semigroups, dr-semigroups and their subclasses	1
Incidence monoids: automorphisms and complexity	1
On pure $$\kappa $$-sparse gapsets	1
Centralizers in graph products of semigroups	1
On the algebraic invariants of certain affine semigroup rings	1
Algebraic products of tensor products	1
On the admissibility of observation operators for evolution families	1
Density of type-dependent sets in Krull monoids with analytic structure	1
Joint continuity in semitopological monoids and semilattices	1
Combinatorially rich sets in arbitrary semigroups	1
Locally Hausdorff tight groupoids generalised	1
Analysis and control of integro-differential Volterra equations with delays	1
Constructions of free dibands and tribands	1
The damped wave equation with acoustic boundary conditions and non-locally reacting surfaces	1
Proportionally modular numerical semigroups generated by arithmetic progressions	1
Torsion factors of commutative monoid semirings	1
On sensitive sets and regionally proximal sets of group actions	1
A subsemigroup of the rook monoid	1
Connected objects in categories of S-acts	1
Formations of orthodox semigroups	1
A note on Garside monoids and $${\mathscr {M}}$$-braces	1
Spectrum of partial automorphisms of regular rooted tree	1
The André–Quillen cohomology of commutative monoids	0
An extension to “A subsemigroup of the rook monoid”	0
Ternary rings of operators arising from inverse semigroups	0
The projection problem in commutative, positively ordered monoids	0
HS-stability and complex products in involution semigroups	0
A class of join-completions of partially ordered semigroups	0
An algebraic characterisation of ample type I groupoids	0
Pseudogroups and their torsors	0
The ideal duplication	0
On the structure of cancellative conjugation semigroups	0
Independence of axioms of an associative trioid	0
On some families of subsemigroups of a numerical semigroup	0
Schur–Weyl dualities for the rook monoid: an approach via Schur algebras	0
Irreducible unipotent numerical monoids	0

Infinite sequences of almost symmetric non-Weierstrass numerical semigroups	0
On the first order theory of plactic monoids	0
Definability of band structures on posets	0
Quantitative results for the limiting semigroup generated by the multidimensional Bernstein operators	0
Growth of orbits for operator semigroups on Banach spaces with Schauder bases	0
A defining equation and reflective subcategories of quasicontinuous complete semilattices	0
Correction to: A simple proof of a multidimensional Borg–Levinson type theorem	0
H-closedness and absolute H-closedness	0
A cluster algebra approach to presentations of the monoid of uniform block permutations	0
On the monoid of order-preserving transformations of a finite chain whose ranges are intervals	0
Generalizations of free monoids	0
Semilattices of stratified extensions	0
Correction to: Numerical semigroups generated by primes	0
Affine semigroups of maximal projective dimension-II	0
Combinatorial results for semigroups of orientation-preserving and order-decreasing transformations	0
Cartesian products of two CR sets	0
On the Ellis semigroup of a discrete dynamical system ([0, 1], f)	0
A tribute to John Meakin on the occasion of his 75th birthday	0
A remark on contracting inverse semigroups	0
Étale inverse semigroupoids: elementary properties, universal constructions and duality	0
On splittings and integration of almost periodic functions with and without geometry	0
Editorial note	0
Abundance of the ideals of the order-preserving and decreasing full transformation semigroup	0
On gonality and canonical models of unicuspidal rational curves	0
Cyclotomic numerical semigroup polynomials with at most two irreducible factors	0
Homeomorphism groups on the positive real numbers defined by binary operations	0
Van Vleck’s and Kannappan’s functional equations for division ring-valued functions	0
New models for the free commutative monogenic trioid and its endomorphism monoid	0
Coefficient rings of numerical semigroup algebras	0
On commutative elemental annihilator monoids	0
The word problem for $$\kappa $$-terms over the pseudovariety of local groups	0
Semigroup algebras which are Azumaya algebras	0
Classification of finite structurally uniform nilsemigroups	0
Mid-reversibility properties of semigroup actions on homogeneous spaces	0
Broken Möbius categories of $$Q_{3}$$-type and their split inverse semigroups	0
A topological shuttle between inequalities and pseudoinequalities	0
Prime L-algebras and right-angled Artin groups	0
The square Frobenius number	0
Representations and identities of Baxter monoids with involution	0
Arf numerical semigroups with prime multiplicity	0
Publisher Correction to: Topologies on the symmetric inverse semigroup	0
Libor Polák (1950–2020)	0
Biunit pairs in semiheaps and associated semigroups	0
Publisher Correction to: Distribution of genus among numerical semigroups with fixed Frobenius number	0
Variational principle for BS-dimension of subsets of finitely generated free semigroup actions	0
A note on weak amenability of semigroup algebras	0
Dynamical systems arising by iterated functions on arbitrary semigroups	0
On the equivalence between the uniform exponential stability of a $$C_0$$-semigroup and the boundedness of the resolvent	0
Presentation of monoids generated by a projection and an involution	0
Some properties of monoids with infinity	0
Strongly Kreiss bounded operators in UMD Banach spaces	0
Fibration mappings of topological left almost semigroups	0
Weakly invariant fuzzy quasi-pseudometrics on semigroups	0
Completions of posemigroups by cuts and beyond	0
Atomic density of arithmetical congruence monoids	0
Ellis semigroupoid	0
Semigroup method for a deteriorating system with multiple vacations of a repairman	0
Arens regularity for totally ordered semigroups	0
Exponential stability of extensible beams equation with Balakrishnan–Taylor, strong and localized nonlinear damping	0
The isomorphism problem for ideal class monoids of numerical semigroups	0
Essential character amenability of semigroup algebras	0
On the solvability of fourth-order boundary value problems with accretive operators	0
Presentations for three remarkable submonoids of the dihedral inverse monoid on a finite set	0
Normal subsemigroups of finite transformation semigroups	0
Toposes for semigroups: an invitation	0
Laws for generalised interior operations in semigroups	0
A tribute to Mario Petrich	0
A combinatorial approach to the structure of locally inverse semigroups	0
Commutative semigroups whose endomorphisms are power functions	0
Archimedean positively ordered semigroups with maximal elements	0
Abstract differential equations and Caputo fractional derivative	0
An extension of Kannappan’s functional equation on semigroups	0
Set-theoretical solutions of the pentagon equation on Clifford semigroups	0
Multi-sensitivity with respect to a vector for semiflows defined on Hausdorff uniform spaces	0
Polynomial central set theorem near zero	0
Special idempotents and projections	0
On the class semigroup of root-closed weakly Krull Mori monoids	0
A characterization of piecewise $$\mathscr {F}$$-syndetic sets	0
Correction to: Orientation preserving and orientation reversing mappings: a new description	0
The monoid of all orientation-preserving and extensive partial transformations on a finite chain	0
Author Correction: Joint continuity in semitopological monoids and semilattices	0
Publisher Correction to: On the semigroup of order-preserving partial isometries of a finite chain with restricted range	0
Formations and i-Fitting classes of inverse semigroups, congruences and languages	0
Conditionally distributive uninorms locally internal on the boundary	0
Thick sets are exactly the sets with Følner density 1	0
Difference of Hilbert series of homogeneous monoid algebras and their normalizations	0
Some nil-ai-semiring varieties	0
Green’s relations on the variant semigroups of all transformations of a set that reflect an equivalence	0
Asymptotic behavior of the overlap gap between infinite words	0
A categorical approach to operator semigroups	0
The Frobenius problem over number fields with a real embedding	0
Finite semigroups and periodic sums systems in $$\beta \mathbb {N}$$ and their Ramsey theoretic consequences	0
The smallest semilattice congruence on a semigroup	0
Analytic semigroups generated by Dirichlet-to-Neumann operators on manifolds	0
Small and countable inclusive varieties of semigroups	0