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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
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
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
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
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
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
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
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
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
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
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)
\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)
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
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
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)
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
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
(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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
\{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
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
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 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
Generalization of covers
as an étale morphism in general (under some slightly stronger hypotheses, on flatness and separability). Generically, then, such a morphism resembles a
Branched_covering
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
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
Connection on a vector bundle
connection is to be inferred from the flat sections. Consider a smooth morphism of schemes X → B {\displaystyle X\to B} over characteristic 0. If we consider
Gauss–Manin_connection
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
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
Cooked dough food in Italian cuisine
and texture. Common forms of pasta include long and short shapes, tubes, flat shapes or sheets, miniature shapes for soup, those meant to be filled or
Pasta
Direct summand of a free module (mathematics)
injective modules. The lifting property may also be rephrased as every morphism from P {\displaystyle P} to M {\displaystyle M} factors through every epimorphism
Projective_module
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)
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
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
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)
Species of lizard
Henkel's leaf-tailed gecko (Uroplatus henkeli), also known commonly as Henkel's flat-tailed gecko or the frilled leaf-tail gecko, is a species of gecko, a lizard
Henkel's_leaf-tailed_gecko
Species of mammal
purposes. The silver colour morphs are the most valued by furriers, followed by the cross colour morphs and the red colour morphs, respectively. In the early
Red_fox
Generalizations of codimension-1 subvarieties of algebraic varieties
a morphism. A relative effective Cartier divisor for X over S is an effective Cartier divisor D on X which is flat over S. Because of the flatness assumption
Divisor_(algebraic_geometry)
Genus of Late Cretaceous theropod
large, flat scales on their snouts instead of lips, as modern crocodiles do. But crocodiles possess rather cracked keratinized skin, not flat scales;
Tyrannosaurus
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)
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
maps A to B " . 2. More generally, A → B denotes a homomorphism or a morphism from A to B. 3. May denote a logical implication. For the material implication
Glossary of mathematical symbols
Glossary_of_mathematical_symbols
FLAT MORPHISM
FLAT MORPHISM
Boy/Male
British, English
From the Flat Meadow
Girl/Female
American, Australian
Flat Clearing
Male
Russian
(Филат) Pet form of Russian Feofilakt, FILAT means "God-guard."
Boy/Male
Christian & English(British/American/Australian)
From the Flat Lands
Boy/Male
British, English
From the Flat Meadow
Girl/Female
Biblical
Even-tempered, flat country.
Boy/Male
British, English
From the Flat Meadow
Boy/Male
French
From the flat land.
Male
Celtic
, Mars.
Boy/Male
Greek
Flat footed.
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
British, English
From the Flat Meadow
Girl/Female
American, Australian
Flat Clearing
Girl/Female
American, Australian, Chinese
Flat Grassland
Boy/Male
Japanese
Flat and level field.
Boy/Male
French
From the flat land.
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.
Surname or Lastname
English
English : nickname from Middle English fÅde ‘child’, literally ‘that which is fed’, from Old English fÅda ‘food’.
Boy/Male
Hindu, Indian
Till End
Boy/Male
Native American
Flat iron.
FLAT MORPHISM
FLAT MORPHISM
Girl/Female
Arabic
Originated from Madina
Girl/Female
German English
Woman from Magdala.
Biblical
one who answers; afflicted
Boy/Male
African, Arabic, Australian, German
Illustrious; Honourable
Boy/Male
Polish
Victory.
Male
Irish
Irish name SCULLY means "herald."Â
Surname or Lastname
English
English : variant spelling of Savary.
Girl/Female
Biblical
Budding, speaking, prophesying.
Girl/Female
Australian, Czechoslovakian, Danish, German, Hebrew, Polish
Similar to Alice; Noble; Nobility; God is Perfection; God has Created; God is Zealous; God is My Oath
Girl/Female
Polish Russian
From Lydia.
FLAT MORPHISM
FLAT MORPHISM
FLAT MORPHISM
FLAT MORPHISM
FLAT MORPHISM
n.
The flat part, or side, of anything; as, the broad side of a blade, as distinguished from its edge.
a.
Having a head with a flattened top; as, a flat-headed nail.
n.
A flat-bottomed boat, without keel, and of small draught.
v. i.
A float board. See Float board (below).
v. i.
To become flat, or flattened; to sink or fall to an even surface.
n.
The flat or broad side of a sword.
v. t.
To make flat; to flatten; to level.
v. t.
To signal to with a flag; as, to flag a train.
superl.
Lacking liveliness of commercial exchange and dealings; depressed; dull; as, the market is flat.
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.
Something broad and flat in form
adv.
In a flat manner; directly; flatly.
n.
A flat stone used for paving.
superl.
Unanimated; dull; uninteresting; without point or spirit; monotonous; as, a flat speech or composition.
n.
Plain; flat; level.
adv.
Level with the ground; flat.
superl.
Tasteless; stale; vapid; insipid; dead; as, fruit or drink flat to the taste.
v. t.
To lay with flags of flat stones.
superl.
Not sharp or shrill; not acute; as, a flat sound.
superl.
Below the true pitch; hence, as applied to intervals, minor, or lower by a half step; as, a flat seventh; A flat.