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.

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 …
154 questions
Topological vector space with a locally convex topology, i.e. induced by a system of seminorms.
154 questions
Use for questions about mirror symmetry in theoretical/mathematical physics.
151 questions
the branch of mathematics that deals with the mathematical aspects of problems from science and engineering: applied analysis, numerical mathematics, applied statistics etc. (For applications of mathe…
150 questions
The loop space $Ω_X$ of a pointed topological space $X$ is the space of based maps from the circle $\mathbb S^1$ to $X$ with the compact-open topology.
149 questions
The study of formal languages (sets of strings or trees over an alphabet), rewriting systems and algorithms, recognition automata/algorithms, and related questions.
147 questions
Applications of mathematics to any field inside or outside mathematics
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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…
147 questions
The Prime Number Theorem is a theorem that describes the distribution of the primes. It says that the number of primes less than or equal to a real number $x$ is asymptotic to $\frac{x}{\ln x}$.
146 questions
Stability theory, including global stability (in dynamical systems, where it can notably be used in combination with ds.dynamical-systems)
144 questions
Calabi-Yau manifolds are higher dimensional generalizations of elliptic curves and K3 surfaces. They can be defined as the compact complex Kähler manifolds with trivial canonical bundle, and play a ce…
141 questions
For questions about projective modules over a ring and projective objects in related categories.
141 questions
Equivariant homotopy theory is the study of how homotopy theory behaves when spaces are considered together with a group action on them.
141 questions
The Weyl group of a root system is a subgroup generated by reflections through the hyperplanes orthogonal to the roots.
140 questions
139 questions
A class of theories that attempt to explain all existing particles (including force carriers) as vibrational modes of extended objects, such as the 1-dimensional fundamental string.
138 questions
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