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© 2025 - 2026 Nat Welch. All rights reserved.

#mathematics

937 posts

  • @math_stackexchange Stacks Project Remark 29.11.4. ( Characterization of affine morphism ) #Mathematics #Algebra #Research

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    Mar 13, 2026
  • @math_stackexchange Proof of a recursion-only evaluation of a full-spawn square-tree constant #Mathematics #Proof #Recursion

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    Mar 1, 2026
  • @math_stackexchange Series related to Catalan's constant #Mathematics #Series #Catalan

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    Feb 28, 2026
  • @robbie_lyman Subgroupoids of Groups #Mathematics #Algebra #Groups

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    Feb 25, 2026
  • @math_stackexchange Four circles in a star: seeking intuitive proof #Mathematics #Geometry #Proof

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    Feb 25, 2026
  • @math_stackexchange Finding the next few primes using the Euler product for $\zeta(s)$ and Newton's identities. #Mathematics #NumberTheory #PrimeNumbers

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    Feb 14, 2026
  • @math_stackexchange When is a simplicial complex an order complex? #Mathematics #Topology #Algebra

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    Jan 30, 2026
  • @math_stackexchange A topological group $G$ is totally bounded only if there is a totally bounded $K \subset G$ such that $x K \cap K \neq \emptyset$ for all $x \in G$ #Mathematics #Topology #GroupTheory

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    Jan 21, 2026
  • @math_stackexchange Ramification index and inertia degree for composition and "base change" of number fields #Mathematics #Algebra #NumberTheory

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    Jan 21, 2026
  • @math_stackexchange How to find the convolution of a function with itself from its graph? #Mathematics #Calculus #GraphTheory

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    Jan 14, 2026
  • @math_stackexchange Patterns observed in rational approximations of mathematical constants #Mathematics #NumberTheory #Approximation

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    Jan 7, 2026
  • @math_stackexchange Numerical approximation of $\sum_{p \in \mathbb{P}} \frac{p^2}{p!}$ and its proximity to $e+1$ #Mathematics #NumberTheory #Approximation

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    Dec 23, 2025
  • @math_stackexchange Approximate inverse ot the Barnes G-function #Mathematics #Math #Science

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    Dec 20, 2025
  • @robbie_lyman Where to Put my Little Yops? #Mathematics #Topology #Research

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    Dec 13, 2025
  • @math_stackexchange If $a|b, b≠0$ and $a$ is neither a unit nor an associate of $b$ in an ED then $v(a)<v(b).$ #Mathematics #Algebra #NumberTheory

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    Dec 13, 2025
  • @math_stackexchange Pointwise convergence of $\sin(x^n)$ #Mathematics #Analysis #Convergence

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    Dec 2, 2025
  • @math_stackexchange What does $\int_0^1 (1-u) \left(\cot \pi u - \frac{1}{\pi u}\right) \log u \,du $ equal #Mathematics #Calculus #Integration

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    Oct 22, 2025
  • @math_stackexchange Prove: $7 \mid 5^{2n} + 3 \cdot 2^{5n - 2}, \quad \text{for } n \ge 1 $ [duplicate] #Mathematics #NumberTheory #Proof

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    Oct 12, 2025
  • @math_stackexchange The Cauchy Product of $(\operatorname{Li}_2(x))^3$ #Mathematics #Analysis #Research

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    Sep 7, 2025
  • @arachnoid_com Introduction to Statistics #Statistics #Mathematics #Science

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    Aug 5, 2025
  • @math_stackexchange Evaluation of two electron exchange integral #Mathematics #Physics #Science

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    Jul 17, 2025
  • @math_stackexchange How to substitute a term for a bound variable in a quantified formula of first-order logic? #Mathematics #Logic #FormalLogic

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    Jun 17, 2025
  • @math_programming Leibniz's Dream and Dijkstra's nightmare #Mathematics #Programming #Algorithms

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    May 13, 2025
  • @math_programming Anyone know of an approachable proof of the Caratheodory-Fejer theorem? #Mathematics #Algorithms #Proof

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    Feb 10, 2025
  • @math_stackexchange Tail asymptotic behaviour of normal distribution #Mathematics #Statistics #Asymptotics

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    Feb 8, 2025
  • @math_stackexchange Why can not the cubic formula give the result we want? #Mathematics #Algebra #ProblemSolving

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    Jan 26, 2025
  • @math_stackexchange Are $\mathbb Q$ and $\mathbb Q^2$ uniformly homeomorphic? #Mathematics #Topology #Analysis

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    Jan 22, 2025
  • @math_stackexchange Frechet derivative of this function. #Mathematics #Calculus #Analysis

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    Jan 18, 2025
  • @math_stackexchange Finding a more straightforward method in an elementary polynomial problem #Mathematics #Algebra #Education

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    Jan 11, 2025
  • @math_programming Epiphanies from Tape Measures #Mathematics #Algorithms #Programming

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    Jan 4, 2025
  • @math_stackexchange Extended Eisenstein's Irreducibility Criterion Proof #Mathematics #Algebra #Proof

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    Dec 29, 2024
  • @math_stackexchange Existence of locus of closed immersion from surjectivity of the sheaf homomorphism #Mathematics #Algebra #Geometry

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    Dec 20, 2024
  • @math_stackexchange $\operatorname{GL}_n(K)$-subrepresentations of $\operatorname{Sym}^d K^n$ in positive characteristic #Mathematics #Algebra #Research

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    Dec 19, 2024
  • @math_stackexchange Fisher's alpha diversity index #Mathematics #Ecology #Statistics

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    Dec 13, 2024
  • @math_stackexchange Intuition for linear system of divisors? #Mathematics #Algebra #NumberTheory

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    Nov 15, 2024
  • @math_stackexchange Are integer runs the hardest sets of a certain size to cover with prime-gap arithmetic progressions? #Mathematics #NumberTheory #PrimeNumbers

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    Nov 3, 2024
  • @math_programming Carnival of Mathematics #233 #Mathematics #Programming #Carnival

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    Nov 1, 2024
  • @math_stackexchange Create a triangle by knowing the feet of the angle bisectors #Mathematics #Geometry #ProblemSolving

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  • @math_stackexchange Computing difference of error functions to high precision #Mathematics #Math #Science

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    Sep 25, 2024
  • @math_stackexchange Why is the induced Matrix (1,2) norm the maximum 2-norm of any column? #Mathematics #LinearAlgebra #Norms

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    Aug 31, 2024
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