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.
190 questions
Equations whose unknown is a matrix, such as, for instance, algebraic Riccati equations $XAX+XB+CX+D=0$ or matrix differential equations (e.g. $\dot X(t)=AX(t)$. This tag is *not* meant for general sy…
190 questions
A groupoid is a category where all morphisms are invertible. This notion can also be seen as an extension of the notion of group. A motivating example is the fundamental groupoid of a topological spac…
189 questions
Questions about K3 surfaces, which are smooth complex surfaces $X$ with trivial canonical bundle and vanishing $H^1(O_X)$. They are examples of Calabi-Yau varieties of dimension $2$.
189 questions
Symbolic dynamics is the study of dynamical systems defined in terms of shift transformations on spaces of sequences. Examples of topics in this area include shifts of finite type, sofic shifts, Toepl…
189 questions
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187 questions
For standard Young tableaux, semistandard Young tableaux, and other related two-dimensional arrays of numbers like plane partitions. Including their combinatorial theory and their application in repre…
185 questions
A symmetric space is a connected Riemannian manifold in which at every point there exists a global self-isometry whose differential at the given point is minus identity.
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182 questions
Contact manifolds, contact structures, contact forms, Reeb dynamics, Legendrian knots, contact homology, symplectic field theory
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181 questions
For questions about writing mathematical texts, e.g. questions of style, mathematical prose, structuring of mathematical exposition, referencing prior work etc.
180 questions
179 questions
Everything the deals with properties and definitions of Haar measure, as well as related fields when the question relies heavily on the notion of haar measure - group harmonic analysis, group ergodic …
179 questions
used only for functions based on gamma, not functions with some obscure relation to gamma
178 questions
For questions about careers and jobs in mathematics (inside and outside academia)
178 questions
Questions regarding derivatives and integrals of non-integer order.
178 questions
Tensors, multivectors, wedge products, multilinear maps, exterior (Grassmann) algebras.
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Questions in which books play a key-role, such as questions on antique books, e-books, difference between various editions of a book, etc. For questions asking for recommendations of books on some sub…
175 questions
175 questions
Interpolation is the theory of constructing smooth functions, usually polynomials or trigonometric polynomials, whose graph passes through a number of given points in the plane. Splines and Bézier cur…
175 questions
173 questions
Mathematical questions related to mathematical software systems such as Sage, Mathematica, Maple, Pari/GP, and GAP. Note that troubleshooting questions are generally considered off-topic.
173 questions
The general enterprise of calibrating the strength of classical mathematical theorems in terms of the axioms, typically of set existence, needed to prove them; originated in its modern form in the 197…
173 questions
In algebraic geometry, a projective variety over an algebraically closed field $k$ is a subset of some projective $n$-space $\mathbb P^n$ over $k$ that is the zero-locus of some finite family of homog…
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172 questions
172 questions
For questions about matchings in graph theory. A matching on a graph is a set of edges such that no two edges share a common vertex.
172 questions
An arithmetic progression is a (possibly infinite) sequence of numbers such that the difference between consecutive terms is always the same value.
171 questions
171 questions
171 questions
171 questions