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Find the exact object.

Names, aliases, Unicode, and common TeX notation. Open full search

How to read a record

Read the object type, defining field where applicable, and global-group specification. A group, Lie algebra, real form, and homomorphism are separate records. The same name can appear in different mathematical contexts.

Classification identifies an object or family. Reference supplies a stated collection of properties. Executable links to a supported calculation. The representation category and completeness statement belong to the data.

Open SU(2) and SO(3). Compare the center and fundamental group, then use the global-form workbench to test whether the spin-one-half representation descends.

Next compare Q₈ with D₈. Equal irrep dimensions do not determine the reality type. Follow the representation claim to its character-table source.

For branching or topology, open the map record and read the domain, codomain, image, and kernel. Keep these in the physical interpretation. A group map with a nontrivial kernel is not an embedding of its domain.

Expand a claim to see its source locator or derivation. Use the record JSON when you need structured data, and preserve the edition in your citation. A calculator export records its inputs and conventions; a copied link reproduces the inputs using the currently published engine.

The review queue explains whether independent expert review is complete for the current record.

First public edition · mathematical baseline 6.0.0. Source curation and automated validation are distinct from independent expert review.

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