# 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:
 ordered-fields× 82 fields which have an additional structure, a linear order compatible with the field structure. This tag is for questions regarding ordered fields and their properties, as well proof… nested-radicals× 82 error-propagation× 82 For questions on propagation of errors. biology× 82 For questions regarding mathematical concepts with applications to Biology. catalan-numbers× 82 For questions on Catalan numbers, a sequence of natural numbers that occur in various counting problems. classical-analysis× 80 additive-combinatorics× 80 about giving combinatorial estimates of addition and subtraction operations on Abelian groups or other algebraic objects. Key words: sum set estimates, inverse theorems, grap… dihedral-groups× 80 For questions on dihedral groups, the group of symmetries of a regular polygon, including both rotations and reflections minimal-polynomials× 80 the lowest order monic polynomial satisfied by an object, such as a matrix or an algebraic element over a field. principal-bundles× 80 a mathematical object which formalizes some of the essential features of the Cartesian product $X\times G$ of a space $X$ with a group $G$. span× 79 For questions about the linear span of a set of vectors, which is the smallest subspace containing the set. Most questions with this tag belong to (linear-algebra) or (functional-analysis). reflection× 79 polylogarithm× 78 For questions about or related to polylogarithm functions. sums-of-squares× 78 For questions concerning various representation of integers as sums of squares, which are studied in number theory. decision-theory× 77 For questions regarding formal decision problems. In contrast, questions involving strategic aspects (where the solution depends on the behavior of others) are discussed in game theory. derived-functors× 76 optimal-control× 76 monoidal-categories× 76 multinomial-coefficients× 76 For questions related to multinomial coefficients, a generalization of binomial coefficients. quantum-groups× 76 root-systems× 76 For questions involving abstract root systems, their associated Weyl groups and Dynkin diagrams, as well as their applications to Lie theory, graph theory, or other related fields. projective-schemes× 75 clustering× 75 grouping (partitioning) a set of objects so that items in the same group are more similar to each other than to items in different groups, where the notion of similarity may be variously… higher-order-logic× 75 homogeneous-equation× 75 unique-factorization-dom× 75 A commutative ring in which every non-zero non-unit element can be written as a product of prime elements, and where this product is unique up to ordering and units. Also called UFD or "factorial ring… hamiltonian-path× 74 A path in a graph that visits each vertex exactly once. graded-rings× 74 cw-complexes× 74 For questions about CW complexes (topological spaces which are built up using balls of varying dimensions known as cells). poisson-distribution× 74 means× 74 locus× 74 finitely-generated× 73 splitting-field× 73 The splitting field of a polynomial with coefficients in a field, F, is the smallest field extension to F such that the polynomial decomposes into linear factors. Often used with Galois-theory tag. topological-k-theory× 73 a generalized cohomology theory, for which $K_0(X)$ is the Grothendieck group of isomorphism classes of vector bundles over topological space $X$. See also (algebraic-k-theory)… graded-modules× 72