# 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:
 spherical-trigonometry× 93 .................................................... artificial-intelligence× 93 For questions about artificial intelligence. kalman-filter× 93 For questions about Kalman filter. moduli-space× 92 a space in algebraic geometry whose points are geometric objects or isomorphism classes of these kinds of objects. parity× 92 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… compact-manifolds× 92 For questions regarding the structure and properties of compact manifolds. elliptic-equations× 92 For questions about elliptic partial differential equations. If your question is specific to the Laplace equation, see (harmonic-functions). toric-geometry× 92 k-theory× 91 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). noncommutative-geometry× 90 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… translation-request× 90 for requests to translate written mathematical material from one language to another. satisfiability× 89 For questions on the subject of "satisfiability", that is, whether there exists an interpretation/model in which a given (logical) formula is true. knot-invariants× 88 For properties of knots that remain unaffected by Reidmaster moves legendre-symbol× 88 For questions involving the Legendre symbol, $\genfrac{(}{)}{}{}{a}{p}$ for integer $a$ and prime $p$. linear-regression× 88 .................................................... minimal-surfaces× 88 Question on minimal surfaces, or surfaces that have zero mean curvature. division-algebras× 88 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… gamma-distribution× 88 .................................................... classifying-spaces× 88 A classifying space $BG$ of a topological group $G$ is the quotient of a weakly contractible space $EG$ by a free action of $G$. When $G$ is a discrete group $BG$ has homotopy type of $K(G,1)$ and (co… arc-length× 87 Given $t\in I$, the arc length of a regular parametrized curve $\alpha : I \rightarrow {\bf R}^3$, from the point $t_0$, is by definition $$s(t)=\int_{t_0}^t |\alpha'(t)| dt,$$ where |\alpha'(t)| … bochner-spaces× 87 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. local-field× 87 integration-by-parts× 87 To be used when the technique of Integration By Parts is the dominant topic of the question. utility× 87 A tag for all questions involving a type of utility function. inverse-problems× 86 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… coupon-collector× 86 A famous problem of probability, where a person samples a set with replacement until every element of the set (I.e. the coupons) has been obtained at least once. Questions deal with the associated pro… flatness× 86 flat when the right-exact "tensor by $M$" functor becomes left exact (and therefore exact). This applies to $A$-algebras as the latter are $A$-module, saying that $B$ flat over \$A… fibration× 86 A branch of topology that deals with the notion of a fiber bundle. complex-manifolds× 85 For questions about complex manifolds. manifolds-with-boundary× 85 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 … tessellations× 85 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. transpose× 84 In linear algebra, the transpose of a matrix is another matrix whose i-th row and j-th column is the j-th row and i-th column of the original matrix. noise× 84 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… coxeter-groups× 84 For questions about Coxeter groups, an abstract group that admits a formal description in terms of reflections. geometric-progressions× 84 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 graph-laplacian× 84 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…