Type to see ranked matches. Use the up and down arrow keys to choose a result, then press Enter to open it.
Preparing the interactive atlas…
Keyboard graph navigation: press N for concepts or E for relations; use arrow keys, Home, and End to move; Enter selects; Shift plus Enter selects and centers; plus and minus zoom; zero fits; Escape clears the selection. Use the visible viewport buttons as alternatives to dragging, wheel, and pinch gestures.
Select a concept
Select any concept, construction junction, or annotated relation by pointer, touch, search, or keyboard.
Construction junctions are diamonds. They show where multiple structures must coexist on the same carrier and satisfy compatibility conditions.
Move selected concept
Single-pointer and keyboard alternatives to dragging. Each activation moves the selected concept one step.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
e_complex_smooth
Relation type
Induced / forgotten induced-forgotten
Direction
source → target
Endpoint roles
source: Yields by induction / forgetting; target: Obtained by induction / forgetting from
Authored annotation
forget holomorphic charts to smooth charts
Authored explanation
Holomorphic transition maps are smooth, so a complex atlas canonically determines an underlying smooth manifold of twice the complex dimension.
How to interpret this relation type
Pass canonically from a stronger object to structure it determines, or forget part of the data while retaining a valid weaker structure. The carrier may change under a canonical induced construction.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
top_manifold_to_smooth
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
add smooth atlas
Authored explanation
Choose a maximal atlas whose transition functions are smooth.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
e_smooth_contact
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
+ contact distribution
Authored explanation
Add a maximally nonintegrable hyperplane field.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
math_smooth_manifold_to_differential_form
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
smooth alternating covariant tensor field
Authored explanation
Differential forms are smooth sections of exterior powers of the cotangent bundle.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
source: Canonically constructs; target: Canonically constructed from
Authored annotation
define coordinate-independent differentiation
Authored explanation
Smooth coordinate changes make the exterior derivative of differential forms globally well defined, independently of the local chart used to calculate it.
How to interpret this relation type
Apply a standard functorial or canonical construction whose output is not merely a reduct of the input and is not generally an equivalent presentation of the same object.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
e_smooth_foliated
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
+ integrable distribution
Authored explanation
Add an integrable tangent distribution or foliation atlas.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
smooth_to_connection
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
add affine connection
Authored explanation
Add a covariant derivative on vector fields.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
e_smooth_oriented
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
+ orientation
Authored explanation
Choose a consistent orientation.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
smooth_to_poisson
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
add Poisson bracket
Authored explanation
Add a Lie bracket on smooth functions that is a derivation in each argument.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
smooth_to_pseudo_riemannian
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
add nondegenerate metric tensor
Authored explanation
Add a smoothly varying nondegenerate symmetric bilinear form.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
smooth_to_analytic
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
+ compatible analytic atlas
Authored explanation
Choose a real-analytic atlas compatible with the underlying smooth structure.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
smoothcurve_from_manifold
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
smooth parameterized map
Authored explanation
A smooth curve is a smooth map from a one-dimensional parameter domain into a smooth manifold.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
math_smooth_to_spacetime
Relation type
Mathematical formulation mathematical-formulation
Direction
source → target
Endpoint roles
source: Mathematically formulates; target: Mathematically formulated using
Authored annotation
smooth event manifold
Authored explanation
Relativistic spacetime is modeled as a smooth manifold so that fields, curves, and differential equations are defined locally.
How to interpret this relation type
A mathematical concept supplies part of the formal language, state space, representation, or analytic machinery used by a scientific or mathematical-physics concept. The source is the mathematical predecessor; this does not claim that physical content follows from mathematics alone.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
smooth_to_symplectic
Relation type
Add data add-data
Direction
source → target
Endpoint roles
source: Builds toward; target: Built from
Authored annotation
add closed nondegenerate 2-form
Authored explanation
Add a differential 2-form that is closed and nondegenerate.
How to interpret this relation type
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
math_smooth_manifold_to_tangent_bundle
Relation type
Canonical construction canonical-construction
Direction
source → target
Endpoint roles
source: Canonically constructs; target: Canonically constructed from
Authored annotation
tangent bundle
Authored explanation
Each smooth manifold canonically determines its tangent bundle.
How to interpret this relation type
Apply a standard functorial or canonical construction whose output is not merely a reduct of the input and is not generally an equivalent presentation of the same object.