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Algebraic structure with an associative operation and an identity element
is a free monoid. Transition monoids and syntactic monoids are used in describing finite-state machines. Trace monoids and history monoids provide a foundation
Monoid
Concept in mathematics
In abstract algebra, the free monoid on a set is the monoid whose elements are all the finite sequences (or strings) of zero or more elements from that
Free_monoid
Type of algebraic structure
the set of nonnegative integers or the set of integers, but can be any monoid. The direct sum decomposition is usually referred to as gradation or grading
Graded_ring
A Cartesian monoid is a monoid, with additional structure of pairing and projection operators. It was first formulated by Dana Scott and Joachim Lambek
Cartesian_monoid
Algebraic structure
not a monoid. Positive integers with addition form a commutative semigroup that is not a monoid, whereas the non-negative integers do form a monoid. A semigroup
Semigroup
Concept in mathematics
topological monoid is a monoid object in the category of topological spaces. In other words, it is a monoid with a topology with respect to which the monoid's binary
Topological_monoid
Smallest monoid that recognizes a formal language
computer science, the syntactic monoid M ( L ) {\displaystyle M(L)} of a formal language L {\displaystyle L} is the minimal monoid that recognizes the language
Syntactic_monoid
Mathematical concept in category theory
In category theory, a branch of mathematics, a monoid (or monoid object, or internal monoid, or algebra) ( M , μ , η ) {\displaystyle (M,\mu ,\eta )} in
Monoid_(category_theory)
Algebraic structure
In abstract algebra, a monoid ring is a ring constructed from a ring and a monoid, just as a group ring is constructed from a ring and a group. Let R be
Monoid_ring
Topics referred to by the same term
Look up monoid in Wiktionary, the free dictionary. A monoid is an algebraic structure. Monoid may also refer to: Monoid (category theory), a mathematical
Monoid_(disambiguation)
Generalization of strings in computer science
complete equivalence under all reorderings. The trace monoid or free partially commutative monoid is a monoid of traces. Traces were introduced by Pierre Cartier
Trace_monoid
In algebra, a presentation of a monoid (or a presentation of a semigroup) is a description of a monoid (or a semigroup) in terms of a set Σ of generators
Presentation_of_a_monoid
monoids were first presented by M.W. Shields. History monoids are isomorphic to trace monoids (free partially commutative monoids) and to the monoid of
History_monoid
Concept in abstract algebra
In abstract algebra, an additive monoid ( M , 0 , + ) {\displaystyle (M,0,+)} is said to be zerosumfree, conical, centerless or positive if nonzero elements
Zerosumfree_monoid
Theoretical object in mathematics
multiplicative monoids called the structure sheaf. An affine monoid scheme is a monoidal space that is isomorphic to the spectrum of a monoid, and a monoid scheme
Field_with_one_element
Monoid of all words in the alphabet of positive integers modulo Knuth equivalence
In mathematics, the plactic monoid is the monoid of all words in the alphabet of positive integers modulo Knuth equivalence. Its elements can be identified
Plactic_monoid
If it includes the identity function, it is a monoid, called a transformation (or composition) monoid. This is the semigroup analogue of a permutation
Transformation_semigroup
In mathematics, the Chinese monoid is a monoid generated by a totally ordered alphabet with the relations cba = cab = bca for every a ≤ b ≤ c. An algorithm
Chinese_monoid
In mathematics, a rational monoid is a monoid, an algebraic structure, for which each element can be represented in a "normal form" that can be computed
Rational_monoid
Associated with any semiautomaton is a monoid called the characteristic monoid, input monoid, transition monoid or transition system of the semiautomaton
Semiautomaton
category theory, a (strict) n-monoid is an n-category with only one 0-cell. In particular, a 1-monoid is a monoid and a 2-monoid is a strict monoidal category
N-monoid
Mathematical object that generalizes the standard notions of sets and functions
Any monoid can be understood as a special sort of category (with a single object whose self-morphisms are represented by the elements of the monoid), and
Category_(mathematics)
Truncating subtraction on natural numbers, or a generalization thereof
certain commutative monoids that are not groups. A commutative monoid on which a monus operator is defined is called a commutative monoid with monus, or CMM
Monus
Concept in abstract algebra
In mathematics, a refinement monoid is a commutative monoid M such that for any elements a0, a1, b0, b1 of M such that a0+a1=b0+b1, there are elements
Refinement_monoid
Finitelt generated commutative monoid
In abstract algebra, a branch of mathematics, an affine monoid is a commutative monoid that is finitely generated, and is isomorphic to a submonoid of
Affine_monoid
1966 Doctor Who serial
to discover the humans have become subservient to their slave race, the Monoids. Producer John Wiles conceived of the spaceship, and story editor Donald
The_Ark_(Doctor_Who)
Category admitting tensor products
category may also be viewed as a "categorification" of an underlying monoid, namely the monoid whose elements are the isomorphism classes of the category's objects
Monoidal_category
Action of a semigroup on a set
important special case is a monoid action or act, in which the semigroup is a monoid and the identity element of the monoid acts as the identity transformation
Semigroup_action
Abstract algebra concept
a monoid, one can still use the notion of a generating set S {\displaystyle S} of G {\displaystyle G} . S {\displaystyle S} is a semigroup/monoid generating
Generating_set_of_a_group
a factorisation of a free monoid is a sequence of subsets of words with the property that every word in the free monoid can be written as a concatenation
Monoid_factorisation
Semigroup in abstract algebra
has in the general linear group (which is a subgroup of the full linear monoid). However, for an arbitrary matrix, AAT does not equal the identity element
Semigroup_with_involution
Element of algebraic structure
element of an algebraic structure such as a monoid that has several desirable properties. Formally, if M is a monoid, then an element Δ of M is said to be a
Garside_element
Generalization of additive and multiplicative inverses
order. A monoid is a set with an associative operation that has an identity element. The invertible elements in a monoid form a group under monoid operation
Inverse_element
Group of 𝑛 × 𝑛 invertible matrices
algebraic structure is a monoid, usually called the full linear monoid, but occasionally also full linear semigroup, general linear monoid etc. It is actually
General_linear_group
Self-self morphism
follows that the set of all endomorphisms of X forms a monoid, the full transformation monoid, and denoted End(X) (or EndC(X) to emphasize the category
Endomorphism
Property of operations
{\displaystyle x\cdot x=x} for all x ∈ S {\displaystyle x\in S} . In the monoid ( N , × ) {\displaystyle (\mathbb {N} ,\times )} of the natural numbers
Idempotence
Generalised alphabetical order
separate sorting algorithm. The monoid of words over an alphabet A is the free monoid over A. That is, the elements of the monoid are the finite sequences (words)
Lexicographic_order
Orientation-preserving mapping class group of the torus
group is the dyadic monoid, which is the monoid of all strings of the form STn1STn2STn3... for positive integers ni. This monoid occurs naturally in the
Modular_group
Design pattern in functional programming to build generic types
to the category of monoids. Here the task for the programmer is to construct an appropriate monoid, or perhaps to choose a monoid from a library. The
Monad (functional programming)
Monad_(functional_programming)
String rewriting system
coincides with the presentation of a monoid. Thus they constitute a natural framework for solving the word problem for monoids and groups. An SRS can be defined
Semi-Thue_system
Type of semigroup
positive integer n such that xn = xn+1. An aperiodic monoid is an aperiodic semigroup which is a monoid. A finite semigroup is aperiodic if and only if it
Aperiodic_semigroup
General theory of mathematical structures
the case. For example, a monoid may be viewed as a category with a single object, whose morphisms are the elements of the monoid. The second fundamental
Category_theory
Variant of the notion of the center of a monoid, group, or ring to a category
mathematician Vladimir Drinfeld) is a variant of the notion of the center of a monoid, group, or ring to a category. The center of a monoidal category C = ( C
Center_(category_theory)
Sequence of characters, data type
operation form a monoid, the free monoid generated by Σ {\displaystyle \Sigma } . In addition, the length function defines a monoid homomorphism from
String_(computer_science)
Abelian group extending a commutative monoid
mathematics, the Grothendieck group, or group of differences, of a commutative monoid M is a certain abelian group. This abelian group is constructed from M in
Grothendieck_group
examples of Frobenioids are essentially monoids. If M is a commutative monoid, it is acted on naturally by the monoid N of positive integers under multiplication
Frobenioid
Unary operation on string sets
elements belong to V; in mathematics, it is more commonly known as the free monoid construction. The Kleene star operator on a language L generates another
Kleene_star
Directed graph representing dependencies
as well. An acyclic dependency graph corresponds to a trace of a trace monoid as follows: A function ϕ : S → Σ {\displaystyle \phi :S\to \Sigma } labels
Dependency_graph
Special kind of semigroup in mathematics
not in the set. Numerical semigroups are commutative monoids and are also known as numerical monoids. The definition of numerical semigroup is intimately
Numerical_semigroup
Mathematical theorem
the structures are the same, and the resulting magma is a commutative monoid. This can then be used to prove the commutativity of the higher homotopy
Eckmann–Hilton_argument
Equivalence relation in algebra
cannot be done with, for example, monoids, so the study of congruence relations plays a more central role in monoid theory. The general notion of a congruence
Congruence_relation
Finite-state machine
Repeated function composition forms a monoid. For the transition functions, this monoid is known as the transition monoid, or sometimes the transformation
Deterministic finite automaton
Deterministic_finite_automaton
Ring that is also a vector space or a module
associative R-algebra is a monoid object in R-Mod (the monoidal category of R-modules). By definition, a ring is a monoid object in the category of abelian
Associative_algebra
Theory of trace monoids
definition of the free partially commutative monoid or trace monoid, or equivalently, the history monoid, which provides a concrete algebraic foundation
Trace_theory
Structure-preserving map between two algebraic structures of the same type
operation. A monoid homomorphism is a map between monoids that preserves the monoid operation and maps the identity element of the first monoid to that of
Homomorphism
Continuous function that is not absolutely continuous
monoid M is then the monoid of all such finite-length left-right moves. Writing γ ∈ M {\displaystyle \gamma \in M} as a general element of the monoid
Cantor_function
Algebraic ring that need not have additive negative elements
arises as the function composition of endomorphisms over any commutative monoid. Some authors define semirings without the requirement for there to be a
Semiring
Branch of mathematics that studies algebraic structures
Transformation semigroup Monoid Aperiodic monoid Free monoid Monoid (category theory) Monoid factorisation Syntactic monoid Group (mathematics) Lagrange's
List of abstract algebra topics
List_of_abstract_algebra_topics
In mathematics, an algebraic structure
is an algebraic structure that is simultaneously a lattice x ≤ y and a monoid x•y that admits operations x\z and z/y, loosely analogous to division or
Residuated_lattice
Operation in algebra and mathematics
considered at least in two ways: A monad as a generalized monoid; this is clear since a monad is a monoid in a certain category, A monad as a tool for studying
Monad_(category_theory)
Operation on mathematical functions
structure of a monoid, called a transformation monoid or (much more seldom) a composition monoid. In general, transformation monoids can have remarkably
Function_composition
Mapping between categories
object is the same thing as a monoid: the morphisms of a one-object category can be thought of as elements of the monoid, and composition in the category
Functor
Set with associative invertible operation
structure is called a monoid. The natural numbers N {\displaystyle \mathbb {N} } (including zero) under addition form a monoid, as do the nonzero integers
Group_(mathematics)
Set with operations obeying given axioms
(juxtaposition) as is done for ordinary multiplication of real numbers. Group: a monoid with a unary operation (inverse), giving rise to inverse elements. Abelian
Algebraic_structure
Group that has only one element
\mathrm {e} \cdot \mathrm {e} =\mathrm {e} } . The similarly defined trivial monoid is also a group since its only element is its own inverse, and is hence
Trivial_group
Group with a compatible partial order
In abstract algebra, a partially ordered group is a group (G, +) equipped with a partial order "≤" that is translation-invariant; in other words, "≤" has
Partially_ordered_group
Algebra where division is always defined
multiplication are not a group but respectively a commutative monoid and a commutative monoid with involution. A wheel is an algebraic structure ( W , 0
Wheel_theory
Algebraic structure with addition and multiplication
such that a + (−a) = 0 (that is, −a is the additive inverse of a). R is a monoid under multiplication, meaning that: (a · b) · c = a · (b · c) for all a
Ring_(mathematics)
Number used for counting
(\mathbb {N} ,+)} is a commutative monoid with identity element 0. It is a free monoid on one generator. This commutative monoid satisfies the cancellation property
Natural_number
Special type of element of a set
additive notation zero may, quite naturally, denote the neutral element of a monoid. In this article "zero element" and "absorbing element" are synonymous.
Absorbing_element
Algebraic structure
variables with coefficients in the ring R is the monoid ring R[N], where the monoid N is the free monoid on n letters, also known as the set of all strings
Polynomial_ring
Whole of an object being mathematically similar to part of itself
algebraic structure of a monoid. When the set S has only two elements, the monoid is known as the dyadic monoid. The dyadic monoid can be visualized as an
Self-similarity
Problem in topology
operations comprise an operator monoid called the Kuratowski monoid where the monoid product is function composition. This monoid, which can be used to classify
Kuratowski's closure-complement problem
Kuratowski's_closure-complement_problem
Construction providing a total order on a free monoid
provide a unique monoid factorisation of the free monoid. They are also totally ordered, and thus provide a total order on the monoid. This is analogous
Hall_word
Type of classification in algebra
abelian. Archimedean groups can be generalised to Archimedean monoids, linearly ordered monoids that obey the Archimedean property. Examples include the natural
Archimedean_group
monoid on a finite alphabet is compact. A free monoid on a countable alphabet is compact. A finitely generated free group is compact. A trace monoid on
Compact_semigroup
Continuous fractal curve obtained as the image of Cantor space
are given by the monoid that describes the symmetries of the infinite binary tree or Cantor space. This so-called period-doubling monoid is a subset of
De_Rham_curve
Algebra with unique prime factorization
endowed with the above product is a commutative semigroup and in fact a monoid: the identity element is the fractional ideal R. For any fractional ideal
Dedekind_domain
Function that returns its argument unchanged
the monoid of all functions from X {\displaystyle X} to X {\displaystyle X} (under function composition). Since the identity element of a monoid is unique
Identity_function
Relationship between two functors abstracting many common constructions
a right adjoint to F. From monoids and groups to rings. The integral monoid ring construction gives a functor from monoids to rings. This functor is left
Adjoint_functors
Extension of "invertibility" in abstract algebra
cancellative monoid under addition. Each of these is an example of a cancellative magma that is not a quasigroup. Any free semigroup or monoid obeys the
Cancellation_property
Surjective homomorphism
epimorphisms fail to be surjective. A few examples are: In the category of monoids, Mon, the inclusion map N → Z is a non-surjective epimorphism. To see this
Epimorphism
it is in fact a monoid, it is usually referred to as simply a semigroup. It is perhaps most easily understood as the syntactic monoid describing the Dyck
Bicyclic_semigroup
Two-dimensional manifold
connected sums, the closed surfaces up to homeomorphism form a commutative monoid under the operation of connected sum, as indeed do manifolds of any fixed
Surface_(topology)
Function with a multiplicative scaling behaviour
numbers can be replaced by the more general notion of a monoid. Let M {\displaystyle M} be a monoid with identity element 1 ∈ M , {\displaystyle 1\in M,}
Homogeneous_function
together with the empty word ϵ {\displaystyle \epsilon } defines a free monoid, the monoid of the words on I {\displaystyle I} , which is one of the simplest
Basis_(universal_algebra)
Commutative ring with no zero divisors other than zero
which the set of nonzero elements is a commutative monoid under multiplication (because a monoid must be closed under multiplication). An integral domain
Integral_domain
Branch of mathematics
abelian monoid into an abelian group is a necessary ingredient for defining K-theory since all definitions start by constructing an abelian monoid from a
K-theory
Function with unusual fractal properties
These two operators may be repeatedly combined, forming a monoid. A general element of the monoid is then S a 1 R S a 2 R S a 3 ⋯ {\displaystyle
Minkowski's question-mark function
Minkowski's_question-mark_function
About simultaneous modular congruences
a monoid and k an integral domain, viewed as a monoid by considering the multiplication on k. Then any finite family ( fi )i∈I of distinct monoid homomorphisms
Chinese_remainder_theorem
in automata theory, a rational set of a monoid is an element of the minimal class of subsets of this monoid that contains all finite subsets and is closed
Rational_set
In mathematics, invertible homomorphism
3-category Categorified concepts 2-group 2-ring En-ring (Traced)(Symmetric) monoidal category Monoidal functor n-group n-monoid Category Outline Glossary
Isomorphism
Algebraic structure
module over a ring, with the exception that it forms only a commutative monoid with respect to its addition operation, as opposed to an abelian group.
Semimodule
Finite or infinite ordered list of elements
groups or rings. If A is a set, the free monoid over A (denoted A*, also called Kleene star of A) is a monoid containing all the finite sequences (or strings)
Sequence
Transformations induced by a mathematical group
groups and monoids on objects of an arbitrary category: start with an object X of some category, and then define an action on X as a monoid homomorphism
Group_action
Property of some mathematical operations
semigroup is a semigroup whose operation is commutative; a commutative monoid is a monoid whose operation is commutative; a commutative group or abelian group
Commutative_property
Omission of operations and relations of a structure
a reduct of A. That is, reduct and expansion are mutual converses. The monoid (Z, +, 0) of integers under addition is a reduct of the group (Z, +, −,
Reduct
Algebraic structure with a binary operation
commutativity Commutative magma: A magma with commutativity. Commutative monoid: A monoid with commutativity. Abelian group: A group with commutativity. A magma
Magma_(algebra)
Parallel programming model
Writer writes the output of the Reduce to the stable storage. Properties of monoids are the basis for ensuring the validity of MapReduce operations. In the
MapReduce
Fractal curve resembling a blancmange pudding
p=a_{1}+a_{2}+\cdots +a_{n}} is immediate. The monoid generated by g and r is sometimes called the dyadic monoid; it is a sub-monoid of the modular group. When discussing
Blancmange_curve
MONOID
MONOID
MONOID
MONOID
Surname or Lastname
English
English : variant of Surridge 1.
Girl/Female
Tamil
New
Male
Hebrew
(עֲקִיבָ×) Variant form of Hebrew Yaakov, AKIVA means "supplanter."
Boy/Male
Arabic, Muslim, Sindhi
Selection; Choice
Boy/Male
Gujarati, Hindu, Indian, Kannada, Telugu
Lord Shiva
Girl/Female
Hindu, Indian
Companion
Surname or Lastname
English
English : unexplained.Chinese : see Pan 2.
Boy/Male
American, Anglo, Australian, British, English
Friend of the Palace; Good Friend; Friend at Court; Manor-friend
Girl/Female
Latin
Of the nobility.
Male
African
born in the evening (or night).
MONOID
MONOID
MONOID
MONOID
MONOID