# 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:
 minimal-surfaces× 84 Question on minimal surfaces, or surfaces that have zero mean curvature. elliptic-equations× 84 For questions about elliptic partial differential equations. If your question is specific to the Laplace equation, see (harmonic-functions). 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. artificial-intelligence× 83 For questions about artificial intelligence. gamma-distribution× 82 .................................................... local-field× 82 inverse-problems× 82 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… spherical-trigonometry× 82 .................................................... noise× 81 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… beta-function× 81 For questions about Beta function, a special function closely related to Gamma. It is advisable to also use [special-functions] tag with this one. compact-manifolds× 81 For questions regarding the structure and properties of compact manifolds. rigid-transformation× 80 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… mean-square-error× 80 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 … 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. graph-laplacian× 79 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× 78 An ordinary differential equation that generalizes the notion of "path of steepest descent." For questions on "gradients" of a function, use (multivariable-calculus) instead. satisfiability× 78 For questions on the subject of "satisfiability", that is, whether there exists an interpretation/model in which a given (logical) formula is true. publishing× 78 for questions about publishing mathematical content legendre-symbol× 77 For questions involving the Legendre symbol, $\genfrac{(}{)}{}{}{a}{p}$ for integer $a$ and prime $p$. complex-manifolds× 77 For questions about complex manifolds. formal-power-series× 76 monotone-functions× 76 In mathematics, a monotonic function (or monotone function) is a function between ordered sets that preserves or reverses the given order. This concept first arose in calculus, and was later generaliz… k-theory× 76 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). utility× 76 A tag for all questions involving a type of utility function. manifolds-with-boundary× 75 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 … complete-spaces× 75 complete if for any Cauchy sequence in $X$ it is convergent and its limit is in $X$ cohen-macaulay× 75 linear-approximation× 73 For questions about linear approximations, $f(x) \approx f(a)+f'(a)(x-a)$ for $x$ around $a$. coxeter-groups× 72 For questions about Coxeter groups, an abstract group that admits a formal description in terms of reflections. fuzzy-logic× 72 a form of many-valued logic that deals with approximate, rather than fixed and exact reasoning. (Def: http://en.m.wikipedia.org/wiki/Fuzzy_logic) young-tableaux× 72 linear-groups× 71 a group $G$ whose elements are invertible $n \times n$ matrices over a field $F$. multivalued-functions× 71 In Mathematics, set theory, a Multivalued function is defined as a left-total relation (that is, every input is associated with at least one output) in which at least one input is associated with mult… random-functions× 71 product-space× 70 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. metric-geometry× 70 The study of geometry of manifolds without appealing to differential calculus. It includes studies of length spaces, Alexandrov spaces, and CAT(k) spaces. The techniques are often applicable to Rieman…