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Scheme theory concept
algebraic geometry, a flat morphism f from a scheme X to a scheme Y is a morphism such that the induced map on every stalk is a flat map of rings, i.e.,
Flat_morphism
Algebraic structure in ring theory
that a faithfully flat quasi-compact morphism of schemes has this property.). See also Flat morphism § Properties of flat morphisms. A ring homomorphism
Flat_module
Concept in algebraic geometry
morphism of schemes generalizes a morphism of algebraic varieties just as a scheme generalizes an algebraic variety. It is, by definition, a morphism
Morphism_of_schemes
Technique from algebraic geometry
conclusions about objects on the target of a faithfully flat morphism. Such morphisms, that are flat and surjective, are common, one example coming from an
Faithfully_flat_descent
and in this topology, a morphism of affine schemes is a covering morphism if it is faithfully flat and a quasi-compact morphism. In both categories, a
Flat_topology
Faithfully flat morphism of schemes
of an fpqc morphism, both variations of faithfully flat morphisms of schemes. Sometimes an fpqc morphism means one that is faithfully flat and quasi-compact
Fpqc_morphism
Topics referred to by the same term
algebra Flat morphism in algebraic geometry Flat (disambiguation) Flattening This disambiguation page lists articles associated with the title Flatness. If
Flatness
\pi } is a flat morphism and, in that case, the degeneration is called a flat degeneration. Many authors assume degenerations to be flat. When the family
Degeneration (algebraic geometry)
Degeneration_(algebraic_geometry)
Topics referred to by the same term
space Flat (matroids), a further generalization of flats from linear algebra to the context of matroids Flat module in ring theory Flat morphism in algebraic
Flat
Mathematical theory in the field of algebraic geometry
theorems state that, given a proper flat morphism of schemes X → S {\displaystyle X\to S} , there exists a morphism S ′ → S {\displaystyle S'\to S} (called
Semistable_reduction_theorem
Topics referred to by the same term
Faithfully flat may refer to: Faithfully flat morphism, in the theory of schemes in algebraic geometry Faithfully flat module, for sequences in algebra
Faithfully_flat
Concept in algebraic geometry
an étale morphism (French: [etal]) is a morphism of schemes that is formally étale and locally of finite presentation; the étale morphism is connected
Étale_morphism
a scheme will be a scheme over some fixed base scheme S and a morphism an S-morphism. Contents: !$@ A B C D E F G H I J K L M N O P Q R S T U V W XYZ
Glossary of algebraic geometry
Glossary_of_algebraic_geometry
geometry, a morphism f : X → S {\displaystyle f:X\to S} between schemes is said to be smooth if (i) it is locally of finite presentation (ii) it is flat, and
Smooth_morphism
Algebraic geometry analog of a principal bundle in algebraic topology
{\displaystyle a:Y\to T} is a X {\displaystyle X} -morphism and b : G → H {\displaystyle b:G\to H} is group-scheme morphism such that σ H ∘ ( a × b ) = a ∘ σ G {\displaystyle
Torsor_(algebraic_geometry)
Generalization of algebraic variety
product and the Hom functor on modules. Flat morphism, Smooth morphism, Proper morphism, Finite morphism, Étale morphism Stable curve Birational geometry Étale
Scheme_(mathematics)
Analogs of homology groups for algebraic varieties
associated to the proper morphism Z → X {\displaystyle Z\to X} , and the second homomorphism is pullback with respect to the flat morphism X − Z → X {\displaystyle
Chow_group
Concept in algebraic geometry
: X → B {\displaystyle f:X\to B} of X {\displaystyle X} is a proper flat morphism f {\displaystyle f} to a smooth curve such that f ∗ O X ≅ O B {\displaystyle
Canonical_bundle
Category with direct sums and certain types of kernels and cokernels
abelian. Specifically: AB1) Every morphism has a kernel and a cokernel. AB2) For every morphism f, the canonical morphism from coim f to im f is an isomorphism
Abelian_category
Construction in algebraic geometry
pulled-back morphism loses all information about the original morphism. But if the morphism Z → Y is flat and surjective (also called faithfully flat) and quasi-compact
Fiber_product_of_schemes
Property of functions which is weaker than continuity
a flat and proper morphism of finite presentation. Let F {\displaystyle {\mathcal {F}}} be an O X {\displaystyle {\mathcal {O}}_{X}} -module flat and
Semi-continuity
spectrum of a field) and f : X → S {\displaystyle f:X\to S} a faithfully flat morphism, locally of finite type. Assume f {\displaystyle f} has a section x
Fundamental_group_scheme
constructed as a fiber of a morphism; namely, viewing L as the total space of it, the section s is a X-morphism of L: a morphism s : X → L {\displaystyle
Relative effective Cartier divisor
Relative_effective_Cartier_divisor
In algebraic geometry, an unramified morphism is a morphism f : X → Y {\displaystyle f:X\to Y} of schemes such that (a) it is locally of finite presentation
Unramified_morphism
Superfamily of insects
two morphs of the same clone and Tetramorium ants. Aphids of the round morph cause the ants to farm them, as with many other aphids. The flat morph aphids
Aphid
Construction in homological algebra
π*(R) can be identified with the André-Quillen homology D*(k/R,k). Flat morphism Serre's intersection formula Derived tensor product Eilenberg–Moore
Tor_functor
Concept in mathematics
naturally the structure of a locally ringed space; a morphism between algebraic varieties is precisely a morphism of the underlying locally ringed spaces. If X
Morphism of algebraic varieties
Morphism_of_algebraic_varieties
Relation between algebraic varieties and polynomial ideals
L/k} ). In this vein, one has the following theorem: Any faithfully flat morphism of schemes f : Y → X {\textstyle f:Y\to X} locally of finite presentation
Hilbert's_Nullstellensatz
Construct in algebraic geometry
extended the notion of lci morphism to the non-finite type setting, assuming only that the morphism f is locally of finite flat dimension, and he proved
Cotangent_complex
over a scheme S and if i is an S-morphism, then i is a regular embedding. In particular, every section of a smooth morphism is a regular embedding. If Spec
Regular_embedding
Asymptotically stable in the sense of geometric invariant theory
stable genus g curve over S {\displaystyle S} is defined as a proper flat morphism π : C → S {\displaystyle \pi :C\to S} such that the geometric fibers
Stable_curve
Scheme in algebraic geometry
Y} is a closed immersion and if Y ′ → Y {\displaystyle Y'\to Y} is a flat morphism such that X ′ = X × Y Y ′ {\displaystyle X'=X\times _{Y}Y'} , then[citation
Normal cone (algebraic geometry)
Normal_cone_(algebraic_geometry)
algébrique Fiber product of schemes Flat morphism Smooth scheme Finite morphism Quasi-finite morphism Proper morphism Semistable elliptic curve Grothendieck's
List of algebraic geometry topics
List_of_algebraic_geometry_topics
Algebro-geometric stability condition
{\mathcal {L}})} where X {\displaystyle {\mathcal {X}}} is a scheme with a flat morphism π : X → C {\displaystyle \pi :{\mathcal {X}}\to \mathbb {C} } and L
K-stability
Algebraic geometry
the closed immersion determined by J, and every Y-morphism g : Z0 → X, there exists a unique Y-morphism s : Z → X such that g = si. It is equivalent to
Formally_étale_morphism
Having curvature zero. 3. (Adjective) For the term "flat" in scheme theory see flat module, flat morphism. flecnode A double point that is also a point of
Glossary of classical algebraic geometry
Glossary_of_classical_algebraic_geometry
Idiom for those playing a deceptive role
giving the least of its own energy and resources. On the other hand, the flat morph and the ants can be expected to be engaged in an arms race, with selection
Wolf_in_sheep's_clothing
semistable vector bundles using a GIT quotient. Hilbert polynomial Flat morphism Hilbert scheme Moduli space GIT quotient Grothendieck, Alexander. Techniques
Quot_scheme
Mathematical structure
présentation finie, and in this topology, a morphism of affine schemes is a covering morphism if it is faithfully flat, of finite presentation, and is quasi-finite
Grothendieck_topology
(p)\,s(W,Y).} Similarly, if f : X → Y {\displaystyle f:X\to Y} is a flat morphism of constant relative dimension between pure-dimensional algebraic schemes
Segre_class
Mathematics study in geometry
variety X {\displaystyle X} together with a morphism W : X → A 1 {\displaystyle W:X\to \mathbb {A} ^{1}} which is flat. There are three associated categories
Derived noncommutative algebraic geometry
Derived_noncommutative_algebraic_geometry
Deceptive mimicry of a harmless species by a predator
giving the least of its own energy and resources. On the other hand, the flat morph and the ants can be expected to be engaged in an arms race, with selection
Aggressive_mimicry
defined a morphism to be syntomic if it is flat and locally a complete intersection. The syntomic topology is generated by surjective syntomic morphisms of affine
Syntomic_topology
Moduli scheme of subschemes of a scheme, represents the flat-family-of-subschemes functor
natural morphism to an n-th symmetric product of M. This morphism is birational for M of dimension at most 2. For M of dimension at least 3 the morphism is
Hilbert_scheme
relative curve or a curve over a scheme S or a relative curve is a flat morphism of schemes X → S {\displaystyle X\to S} such that each geometric fiber
Complete_algebraic_curve
Mathematical technique in algebraic geometry
restriction of f to X′ such that X′ → T is a finite morphism and T → S is a smooth affine morphism with geometrically integral fibers of dimension n. Denote
Dévissage
Combination of higher category theory with Chern–Weil theory
\dashv \flat } . Let G {\displaystyle G} be an ∞-group and B G {\displaystyle \mathbf {B} G} its delooping. A characteristic class is a morphism c : B G
∞-Chern–Weil_theory
Type of mathematical object
than just sets). A left action of a group scheme G on a scheme X is a morphism G ×S X → X that induces a left action of the group G(T) on the set X(T)
Group_scheme
Generalization of algebraic spaces or schemes
this morphism U → X {\displaystyle {\mathcal {U}}\to {\mathcal {X}}} is smooth or surjective, we have to introduce representable morphisms. A morphism p
Algebraic_stack
Grothendieck. Generic flatness states that if Y is an integral locally noetherian scheme, u : X → Y is a finite type morphism of schemes, and F is a
Generic_flatness
of maps (or "morphisms"). The key result is: Chevalley's theorem. If f : X → Y {\displaystyle f:X\to Y} is a finitely presented morphism of schemes and
Constructible_set_(topology)
Projective variety that is also an algebraic group
abelian varieties carry the structure of a group. A morphism of abelian varieties is a morphism of the underlying algebraic varieties that preserves
Abelian_variety
\{X'\to X,Z\to X\}} where X ′ → X {\displaystyle X'\to X} is a proper morphism of finite presentation, Z → X {\displaystyle Z\to X} is a closed immersion
H_topology
In mathematics, a harmonic morphism is a (smooth) map ϕ : ( M m , g ) → ( N n , h ) {\displaystyle \phi :(M^{m},g)\to (N^{n},h)} between Riemannian manifolds
Harmonic_morphism
In algebraic geometry, a closed immersion of schemes is a morphism of schemes f : Z → X {\displaystyle f:Z\to X} that identifies Z as a closed subset of
Closed_immersion
that is involved in substrate uptake. Biofilms on a flat solid substrate are examples of V0-morphs; they grow in thickness, but not in surface area that
V0-morph
Used to compare mixed characteristic situations with purely finite characteristic ones
field. If X → Y is a finite étale morphism of adic spaces over K and Y is perfectoid, then X also is perfectoid; A morphism X → Y of perfectoid spaces over
Perfectoid_space
Mathematical function such that every output has at least one input
above, on. Any morphism with a right inverse is an epimorphism, but the converse is not true in general. A right inverse g of a morphism f is called a
Surjective_function
A is not a G-ring. Here kp denotes the image of k under the Frobenius morphism a→ap. A. Grothendieck, J. Dieudonné, Eléments de géométrie algébrique IV
G-ring
Relate the direct image and the pull-back of sheaves
f:X\to S} is a proper morphism between noetherian schemes, and F {\displaystyle {\mathcal {F}}} is a coherent sheaf which is flat over S (i.e., F x {\displaystyle
Base_change_theorems
sends cartesian morphisms to cartesian morphisms. cartesian morphism 1. Given a functor π: C → D (e.g., a prestack over schemes), a morphism f: x → y in
Glossary_of_category_theory
Restriction of scalars
the extension. Under appropriate hypotheses (e.g., flat, proper, finitely presented), any morphism T → S {\displaystyle T\to S} of algebraic spaces yields
Weil_restriction
Inclusion of one mathematical structure in another, preserving properties of interest
{\displaystyle f} is a morphism f g : C → B {\displaystyle fg:C\rightarrow B} , then g {\displaystyle g} itself is a morphism. A factorization system
Embedding
Rings admitting weak inverses
{\textstyle \mathrm {Spec} (R)\to \mathbb {A} ^{1}} factors through the morphism of schemes { 0 } ⊔ G m → A 1 {\displaystyle \{0\}\sqcup \mathbb {G} _{m}\to
Von_Neumann_regular_ring
Isomorphism between the tangent and cotangent bundles of a manifold
point p {\displaystyle p} , it defines a morphism of smooth vector bundles ♭ : T M → T ∗ M {\displaystyle \flat :\mathrm {T} M\to \mathrm {T} ^{*}M} . By
Musical_isomorphism
Additional mathematical object
similarly-structured sets that preserves their structure is known as a morphism, and such maps are of special interest in many fields of mathematics. Examples
Mathematical_structure
Proposition—Given a morphism f : X → Y {\displaystyle f:X\to Y} of finite type between Noetherian schemes, f {\displaystyle f} is étale (flat and unramified)
Local_criterion_for_flatness
morphismes fidèlement plats (descent (category theory), faithfully flat morphisms) Jean-Louis Koszul, Travaux de B. Kostant sur les groupes de Lie semi-simples
Séminaire Nicolas Bourbaki (1950–1959)
Séminaire_Nicolas_Bourbaki_(1950–1959)
Type of soft, billed hat
Stretchable hat – curved or flat brim, structured cap, high profile, adjustable by the use of elastic materials. Fitted hat – curved or flat brim, structured cap
Baseball_cap
Structure in algebraic geometry
theory of adeles. A morphism of schemes f : Y → X {\displaystyle f:Y\to X} is called a Nisnevich morphism if it is an étale morphism such that for every
Nisnevich_topology
Generalisations of Serre duality in mathematics
Jean-Pierre Serre was extended to a proper morphism; Serre duality was recovered as the case of the morphism of a non-singular projective variety (or complete
Coherent_duality
phenomenon in algebraic geometry is given by a linear system: to give a morphism from a base variety S to a projective space X = P n {\displaystyle X=\mathbb
Functor represented by a scheme
Functor_represented_by_a_scheme
Slang term used for a feminine male
not always assisted by HRT." Many femboys idealise a feminine form with a flat chest, leading some to use medicines used in gender-affirming hormone therapy
Femboy
Extends Poincaré duality beyond oriented manifolds
manifold, the top degree cohomology is equipped with a so-called trace morphism θ : H d ( M ; o ( M ) ) → R {\displaystyle \theta \colon H^{d}(M;o(M))\to
Twisted_Poincaré_duality
Differential form in commutative algebra
can also be read off the above computation. A morphism f of finite type is a smooth morphism if it is flat and if Ω X / Y {\displaystyle \Omega _{X/Y}}
Kähler_differential
Infinitesimal version of Lie groupoid
algebra morphism. With the language introduced below, the inclusion A ′ ↪ A {\displaystyle A'\hookrightarrow A} is a Lie algebroid morphism. A Lie subalgebroid
Lie_algebroid
Science fantasy young adult book series
with a morph, DNA allergies that can lose some control of the morphing ability, and having to consistently maintain concentration during a morph to prevent
Animorphs
Set whose pairs have minima and maxima
divisibility (2 and 3 do not divide each other). The appropriate notion of a morphism between two lattices flows easily from the above algebraic definition.
Lattice_(order)
English artist and TV presenter (1925–2009)
used by Blue Peter and the show's badges, and the animated character of Morph, who appeared beside him on his programmes following his introduction in
Tony_Hart
Generalization of a scheme
such that There is a surjective étale morphism h X → X {\displaystyle h_{X}\to {\mathfrak {X}}} the diagonal morphism Δ X / S : X → X × X {\displaystyle
Algebraic_space
On when a morphism of spectral sequences in homological algebra is an isomorphism
spectral sequences of flat modules over a commutative ring and f : E r → ′ E r {\displaystyle f:E^{r}\to {}^{\prime }E^{r}} a morphism between them. Then
Zeeman's_comparison_theorem
Generalization of vector bundles
sections. Let f : X → Y {\displaystyle f:X\to Y} be a morphism of ringed spaces (for example, a morphism of schemes). If F {\displaystyle {\mathcal {F}}} is
Coherent_sheaf
spaces are the same i.e. homeomorphic or diffeomorphic. Constructing a morphism explicitly is almost always impractical. If we put further condition on
Topological_rigidity
Species of snake
name platirhinos is derived from the Greek words platys meaning "broad or flat" and rhinos meaning "snout". Heterodon platyrhinos is described as being
Eastern_hognose_snake
Two closely related mathematical subjects
subspace topology). Suppose ϕ : X → Y {\displaystyle \phi :X\to Y} is a morphism of schemes of locally finite type over C {\displaystyle \mathbb {C} }
Algebraic geometry and analytic geometry
Algebraic_geometry_and_analytic_geometry
Scottish company marketing form-fit one-color body suits
May 2009, shipping of the first batch of 200 costumes was done from their flat. Balancing their day jobs and the company meant "a lot of 2 a.m. finishes"
Morphsuits
Japanese anime television series
"Nao-chan" (ナオちゃん) August 10, 2014 (2014-08-10) A family living in a small flat plays with shadow puppets on the ceiling as they prepare for bed. When the
Yamishibai: Japanese Ghost Stories
Yamishibai:_Japanese_Ghost_Stories
Set of a ring's prime ideals
direction, and these two functors make the two categories dually equivalent. A morphism of ringed spaces from f : ( X , O X ) → ( Y , O Y ) {\displaystyle f:(X
Spectrum_of_a_ring
Species of bird
white heron. Debate exists about whether these white birds are a color morph of the great blue heron, a subspecies of it, or an entirely separate species
Great_blue_heron
1953 film by Ward Kimball and Charles August Nichols
instead of the busts around him in the CinemaScope version. In the flat version, Plunk morphs into the Egyptian playing the harp instead of fading out to him
Toot,_Whistle,_Plunk_and_Boom
Highly venomous snake native to southern Australia and Tasmania
occur, which is prefixed to a common name. The common tiger snake has a flat, blunt head, slightly distinct from a robust body. Its body is capable of
Tiger_snake
Operation in algebra and mathematics
partially ordered sets ( P , ≤ ) {\displaystyle (P,\leq )} (with a single morphism from x {\displaystyle x} to y {\displaystyle y} if and only if x ≤ y {\displaystyle
Monad_(category_theory)
parametrized by T is associated a unique morphism f: T → Av so that L is isomorphic to the pullback of P along the morphism 1A×f: A×T → A×Av. Applying this to
Dual_abelian_variety
Branch of mathematics
than the crude Zariski topology, namely the étale topology, and the two flat Grothendieck topologies: fppf and fpqc; nowadays some other examples have
Algebraic_geometry
Algebraic structure used in theoretical physics
together with a multiplication morphism μ : G × G → G {\displaystyle \mu :G\times G\rightarrow G} , an inversion morphism i : G → G {\displaystyle i:G\rightarrow
Supergroup_(physics)
morphisms, but has an extra condition about isomorphisms between residue fields. Étale topology Uses etale morphisms. fppf topology Faithfully flat of
List of topologies on the category of schemes
List_of_topologies_on_the_category_of_schemes
Species of plant
growth in the summer. During the summer, the leaves stay green, but they morph during the fall to produce a more copper color. The seasonal changes also
Muhlenbergia_capillaris
Exact sequence used to describe the structure of an object
projective resolutions and flat resolutions, which are left resolutions consisting, respectively of free modules, projective modules or flat modules. Similarly
Resolution_(algebra)
Canadian-American actor (1948–1998)
1998. In 2002, Laugh.com and Hartman's brother John published the album Flat TV, a selection of comedy sketches recorded by Hartman in the 1970s, which
Phil_Hartman
Irish-born British figurative painter (1909–1992)
variations on single motifs; including the 1930s Picasso-influenced bio-morphs and Furies, the 1940s male heads isolated in rooms or geometric structures
Francis_Bacon_(artist)
FLAT MORPHISM
FLAT MORPHISM
Male
Celtic
, Mars.
Boy/Male
Native American
Flat iron.
Surname or Lastname
English
English : nickname from Middle English fÅde ‘child’, literally ‘that which is fed’, from Old English fÅda ‘food’.
Boy/Male
British, English
From the Flat Meadow
Boy/Male
British, English
From the Flat Meadow
Girl/Female
American, Australian, Chinese
Flat Grassland
Boy/Male
British, English
From the Flat Meadow
Boy/Male
French
From the flat land.
Surname or Lastname
English (chiefly East Anglia)
English (chiefly East Anglia) : topographic name for someone who lived on a flat, a patch of level or low-lying ground (Old Norse flat, flǫt).South German : variant of Flath 2.
Boy/Male
Japanese
Flat and level field.
Boy/Male
Greek
Flat footed.
Girl/Female
Biblical
Even-tempered, flat country.
Boy/Male
Christian & English(British/American/Australian)
From the Flat Lands
Girl/Female
American, Australian
Flat Clearing
Boy/Male
British, English
From the Flat Meadow
Boy/Male
French
From the flat land.
Male
Russian
(Филат) Pet form of Russian Feofilakt, FILAT means "God-guard."
Surname or Lastname
English (East Anglia) and Jewish (Ashkenazic)
English (East Anglia) and Jewish (Ashkenazic) : metonymic occupational name for someone who grew, sold, or treated flax for weaving into linen cloth, from (respectively) Middle English flax, German Flachs.
Boy/Male
Hindu, Indian
Till End
Girl/Female
American, Australian
Flat Clearing
FLAT MORPHISM
FLAT MORPHISM
Girl/Female
Indian
Success; Lustre; Fulfilment; Glitter; Money; Good Luck; Shine
Boy/Male
German, Greek
Gift from God
Female
English
Spanish equivalent of English Alice, ALICIA means "noble sort."
Boy/Male
Hindu, Indian, Tamil
Lord Krishna
Boy/Male
Australian, Danish, Dutch, Finnish, French, German, Hebrew, Slovenia, Swedish
God's Gracious Gift; The Lord is Gracious
Boy/Male
Sikh
Loving contentment
Female
Norwegian
Danish and Norwegian form of Latin Louisa, LOVISE means "famous warrior."Â
Boy/Male
English
From the rough enclosure.
Boy/Male
Arabic, Muslim
Servant of the Glory (Allah)
Surname or Lastname
English
English : habitational name from Cornforth in County Durham, named with Old English corn, a metathesized form of cron, cran ‘crane’ (see Crane) + ford ‘ford’.
FLAT MORPHISM
FLAT MORPHISM
FLAT MORPHISM
FLAT MORPHISM
FLAT MORPHISM
n.
The flat or broad side of a sword.
superl.
Not sharp or shrill; not acute; as, a flat sound.
superl.
Lying at full length, or spread out, upon the ground; level with the ground or earth; prostrate; as, to lie flat on the ground; hence, fallen; laid low; ruined; destroyed.
n.
A flat-bottomed boat, without keel, and of small draught.
n.
Plain; flat; level.
v. t.
To make flat; to flatten; to level.
v. t.
To lay with flags of flat stones.
n.
Something broad and flat in form
superl.
Lacking liveliness of commercial exchange and dealings; depressed; dull; as, the market is flat.
superl.
Tasteless; stale; vapid; insipid; dead; as, fruit or drink flat to the taste.
n.
The flat part, or side, of anything; as, the broad side of a blade, as distinguished from its edge.
v. t.
To signal to with a flag; as, to flag a train.
superl.
Unanimated; dull; uninteresting; without point or spirit; monotonous; as, a flat speech or composition.
v. i.
To become flat, or flattened; to sink or fall to an even surface.
adv.
Level with the ground; flat.
a.
Having a head with a flattened top; as, a flat-headed nail.
superl.
Below the true pitch; hence, as applied to intervals, minor, or lower by a half step; as, a flat seventh; A flat.
adv.
In a flat manner; directly; flatly.
n.
A flat stone used for paving.
v. i.
A float board. See Float board (below).