Tags
A tag is a keyword or label that categorizes your question with other, similar questions.
The moment problem arises as the result of trying to invert the mapping that takes a measure $μ$ to the sequences of moments, and to resolve the problem of determinacy of such measure.
161 questions
The Möbius band or Möbius strip is a surface with only one side and only one boundary.
The Möbius strip has the mathematical property of being non-orientable. It is named after the German mathematician August Ferdinand Möbius.
161 questions
Constraint programming is a particular form of optimization modeling that tends to be well-suited for combinatorial models like scheduling and planning.
161 questions
In differential topology, transversality formalizes the idea of a generic intersection between two manifolds. It consists in asking an infinitesimal condition, namely on the tangent spaces, to be satisfied everywhere.
160 questions
Use this tag for questions about hypergraphs, i.e. generalizations of graphs in graph theory, in which edges are allowed to be arbitrary subsets of vertices, instead of just pairs.
160 questions
For questions about proofs using equivalent map compositions in commutative diagrams in homological algebra, or in category theory in general.
160 questions
Literally "together boundary", a cobordism is a relation between two compact manifolds stating that their disjoint union forms the boundary of a higher dimensional manifold. This defines an equivalence relation between compact manifolds that is very coarse: two manifolds may be cobordant but not homeomorphic. This flexibility makes it the right notion for classifying manifolds in higher dimensions. See also (geometric-topology) and (algebraic-topology).
160 questions
For questions related to exterior derivative. The exterior derivative of a function $f$ is the one-form
$df=\sum_i\frac{\partial f}{\partial x_i}dx_i$ written in a coordinate chart $(x_1,\dots,x_n)$.
159 questions
For questions about first countable topological spaces, i.e., space with countable local base at each point.
158 questions
This tag is for questions relating to "Extreme Value Theorem". The Extreme Value Theorem guarantees both a maximum and minimum value for a function under certain conditions.
158 questions
For questions related to transport equations. The transport equation describes how a scalar quantity is transported in a space.
156 questions
For questions about different versions of mean curvature flow, including the level set flow and Brakke flow.
156 questions
Discrete calculus is an analog of the continuous version where the 'shift parameter' $h$ remains a non-zero positive number instead of being passed to a limit.
156 questions
For questions about vector lattices (aka. Riesz spaces; a type of vector space equipped with a partial order), Banach lattices and similar topics.
155 questions
A value representing the lowest $n$ percent of the values in a data set or of the possible values of a random variable.
155 questions
Questions dealing with set-theoretic functions defined by transfinite recursion.
154 questions
Pseudoprimes are composite numbers which pass some primality test - a property that is always true for prime numbers. This may be Fermat's Little Theorem for one base or many, or some other test.
154 questions
Use this tag for questions on Frenet frames and the Frenet-Serret formulae. Related tags include (differential-geometry), (multivariable-calculus), and (curves).
154 questions
A stationary point is a point on a graph of a function where the derivative of the function is zero. This tag is for questions involving the existence and classification of stationary points. For questions focusing on minimizing of maximizing values under constraints, use (optimization).
153 questions
Questions regarding the numerical method LU decomposition to decompose a matrix into the multiplication of two triangular matrices: A lower triangle matrix and an upper triangular matrix
153 questions
Stochastic partial differential equations are partial differential equations with a random driving force. Please do not use this tag just because there are stochastic processes and differential equations in your question. Consider if [tag: SDE] is a better choice. This tag is only to be used for PDEs driven by noise.
152 questions
For problems involving either the product of the first n primes or the product of all primes up to and including n.
152 questions
Questions concerning estimations of the amount of time and space used by an algorithm. Approximate recurrence relations are considered. For exact recurrences use [tag:recurrence-relations] or [tag:functional-equations].
152 questions
Questions that relates to the "simplex algorithm", from the mathematical optimization field
151 questions
Use this tag for question involving monomial ideals in polynomial rings of several variables over a commutative ring. This tag should be used together with the tag of commutative algebra.
151 questions
For questions related to discrete time. Discrete time views values of variables as occurring at distinct, separate "points in time", or equivalently as being unchanged throughout each non-zero region of time ("time period")—that is, time is viewed as a discrete variable.
151 questions
"Robotics is the branch of mechanical engineering, electrical engineering and computer science that deals with the design, construction, operation, and application of robots, as well as computer systems for their control, sensory feedback, and information processing."
150 questions
For questions related to the discrete logarithm problem; modulo $p$, in finite fields, over elliptic curves, or in an abstract group.
150 questions
For questions about and related to Representable Functors, that are set-valued functors which can be "represented" by the hom-set of a single object from the domain category. Should be used together with the (category-theory) tag.
148 questions
This tag is for questions relating to Euler Number. Euler's number is another name for e, the base of the natural logarithms.
147 questions
This is useful method for an estimation convex or concave functions on a closed segment.
147 questions
Questions about spaces of functions, such as continuous functions between topological spaces or certain reproducing kernel Hilbert spaces. Does not concern equivalent classes of functions such as $L^p$ spaces.
146 questions