# 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:
 convex-geometry× 87 when posting questions related to the concept of convexity and geometry. For example, for convex polygons. noncommutative-geometry× 87 a study of noncomutative algebras from geometrical point of view. The motivation of this approach is Gelfand representation theorem, which shows that every commutative C*-al… moduli-space× 87 a space in algebraic geometry whose points are geometric objects or isomorphism classes of these kinds of objects. toric-geometry× 87 beta-function× 86 For questions about Beta function, a special function closely related to Gamma. It is advisable to also use [special-functions] tag with this one. division-algebras× 86 a vector spaces over a field $F$ equipped with a bilinear product and a multiplicative neutral element $1$. All the non-zero elements of $D$ have a multiplicative inverse. As… fibration× 86 A branch of topology that deals with the notion of a fiber bundle. gamma-distribution× 85 .................................................... artificial-intelligence× 85 For questions about artificial intelligence. parity× 85 a mathematical term that describes the property of an integer's inclusion in one of two categories: even or odd. An integer is even if it is 'evenly divisible' by two and odd if it is not ev… spherical-trigonometry× 85 .................................................... minimal-surfaces× 84 Question on minimal surfaces, or surfaces that have zero mean curvature. local-field× 84 k-theory× 84 the study of invariants of large matrices, in a suitable sense. It has many variations: (algebraic-k-theory), (topological-k-theory), or in the study of (operator-algebras). inverse-problems× 84 Inverse problems involve for example reconstruction of an object based on physical measurements and finding a best model/parameters out of a family given observed data. Typically the corresponding "fo… bochner-spaces× 84 For question involving Bochner space, which are generalization $\mathbb L^p$ spaces in the sense that the values of the functions are themselves in function spaces. mean-square-error× 82 for questions about mean-square-error. In statistics, the mean squared error (MSE) of an estimator measures the average of the squares of the errors or deviations, that is, the difference … noise× 82 for questions about noise. In signal processing, noise is a general term for unwanted (and, in general, unknown) modifications that a signal may suffer during capture, storage, transmissio… satisfiability× 81 For questions on the subject of "satisfiability", that is, whether there exists an interpretation/model in which a given (logical) formula is true. utility× 81 A tag for all questions involving a type of utility function. tessellations× 80 For question on Tessellations, the process of creating a two-dimensional plane using the repetition of a geometric shape with no overlaps and no gaps. manifolds-with-boundary× 80 typically defined to be without boundaries (every point has a neighbourhood homeomorphic to an Euclidean open disc). Use this tag for the manifolds with boundaries, as well as manifolds … graph-laplacian× 80 An simple graph has a symmetric matrix L = D - A associated with it called the Laplacian matrix, where D is the diagonal matrix of degrees and A is the adjacency matrix, often studied for its spectrum… gradient-flows× 80 An ordinary differential equation that generalizes the notion of "path of steepest descent." For questions on "gradients" of a function, use (multivariable-calculus) instead. complex-manifolds× 79 For questions about complex manifolds. legendre-symbol× 79 For questions involving the Legendre symbol, $\genfrac{(}{)}{}{}{a}{p}$ for integer $a$ and prime $p$. publishing× 79 for questions about publishing mathematical content rigid-transformation× 79 mappings from one reference frame to another reference frame in the Euclidean space $\mathbb R^n$. They comprise translation, rotation (and sometimes reflection). More for… product-space× 78 For questions about the structure of product space, in the context of topology or measure theory for example. Use other tags to indicate the context. coxeter-groups× 78 For questions about Coxeter groups, an abstract group that admits a formal description in terms of reflections. complete-spaces× 78 complete if for any Cauchy sequence in $X$ it is convergent and its limit is in $X$ multiple-integral× 76 For questions regarding computation and results related to integrals in at least 2 variables. linear-groups× 76 a group $G$ whose elements are invertible $n \times n$ matrices over a field $F$. cohen-macaulay× 75 geometric-progressions× 75 a sequence of numbers such that the quotient of any two successive members of the sequence is a constant called the common ratio of the sequence formal-power-series× 75