# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

 Type to find tags:
 3d× 502 is for things related to 3-dimensions. For geometry of 3-dimensional solids, please use instead (solid-geometry). For geometry that is not on a plane, but otherwise agnostic of dimensions… abelian-categories× 132 categories that possess most of properties of categories of modules over a ring, e.g. abelian group structure on morphisms, existence of kernels and cokernels of morphisms, exis… abelian-groups× 609 Should be used with the (group-theory) tag. A group $(G,*)$ is said to be abelian if $a*b=b*a$ for all $a,b\in G.$ abelian-varieties× 32 absolute-convergence× 17 for questions related to absolute convergence a series. absolute-value× 307 For questions about or involving the absolute value function. abstract-algebra× 13703 the study of algebraic objects. Some of the more common algebraic objects are groups, rings, fields, vector spaces, modules, and other advanced topics. ac.commutative-algebra ackermann-function× 3 An example of a total computable function that is not primitive recursive; appears in the literature in many variants. The original three argument variant can be used to define the Ackermann numbers. ackermann-number actuarial-science× 79 a discipline that uses mathematics and statistics to assess risk. The mathematics involved in actuarial science includes probability, statistics, finance, life insurance mathemat… addition additive-combinatorics× 57 about giving combinatorial estimates of addition and subtraction operations on Abelian groups or other algebraic objects. Key words: sum set estimates, inverse theorems, grap… adeles adjoint× 128 For questions about adjoints, in the category-theoretic or inner-product-space sense, as well as about adjugate matrices. advice× 283 Questions asking for advice on various mathematical matters. Consider adding the tag [soft-question] as well. affine-geometry× 171 for questions about algebraic geometry that focus on affine space. For affine mappings in linear algebra (i.e. linear mappings plus translations), please use the linear-algebra tag or another appropri… affine-schemes× 20 ag.algebraic-geometry algebraic-closure× 5 algebraic-curves× 436 an algebraic variety of dimension one. An affine algebraic curve can be described as the zero-locus of $n-1$ independent polynomials of $n$ variables in affine $n$-space over a f… algebraic-geometry× 4868 The study of geometric objects defined by polynomial equations. Algebraic curves, such as elliptic curves, and more generally algebraic varieties, schemes, etc. algebraic-graph-theory× 118 Studying graphs using algebra (for example, linear algebra and abstract algebra) as a tool. algebraic-groups× 259 For questions about groups which have additional structure as a algebraic varieties (the vanishing sets of collections of polynomials) which is compatible with their group structure. Consider using… algebraic-identities× 28 algebraic-k-theory× 25 algebraic-number-theory× 1361 Questions related to the algebraic structure of algebraic integers algebraic-stacks× 2 algebraic-systems× 6 algebraic-topology× 3305 Questions about algebraic methods and invariants to study and classify topological spaces: homotopy groups, (co)-homology groups, and beyond. algebra-precalculus× 7978 linear, exponential, logarithmic, polynomial, rational, and trigonometric functions, conic sections, binomial, surds, graphs and transformations of graphs, equation- and system-solving, and other symb… algebras× 24 For questions about algebras, their properties, and their structures. algorithm algorithmic-game-theory× 44 algorithmic-randomness× 8 algorithms× 2859 Mathematical questions about Algorithms, including the Analysis of Algorithms, Combinatorial Algorithms, proofs of correctness, invariants, and semantic analyses