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15
Math.TechQA.Club
2026-04-05 21:48:55
148
Views
Locally Compact Hausdorff Version of Urysohn's Lemma
Published on
05 Apr 2026 - 21:48
#real-analysis
#general-topology
#continuity
#examples-counterexamples
#alternative-proof
93
Views
Probabilities of events being certain or impossible - implications
Published on
04 Feb 2023 - 6:04
#probability
#examples-counterexamples
57
Views
Simplest application of Picard-Lindelöf in the sciences
Published on
27 Mar 2026 - 22:53
#real-analysis
#ordinary-differential-equations
#examples-counterexamples
#applications
331
Views
Upper Bounding the Discrete Entropy by the Expectation
Published on
28 Mar 2026 - 11:42
#probability
#probability-distributions
#examples-counterexamples
#information-theory
#entropy
174
Views
Constructing a counter-example of an increasing function such that $|\alpha(x)/x|, |\alpha(x)/\alpha(x/2)| \to \infty$ as $x\to 0^+$
Published on
06 Feb 2023 - 23:26
#real-analysis
#calculus
#derivatives
#examples-counterexamples
92
Views
What is an $E-$ invariant set in this context?
Published on
01 Apr 2026 - 21:53
#definition
#examples-counterexamples
#model-theory
70
Views
Is there everywhere large real-part analytic function on the upper half-plane?
Published on
28 Mar 2026 - 1:46
#complex-analysis
#examples-counterexamples
#harmonic-functions
#analytic-functions
69
Views
Let $a\in \mathbb Z$ be such that $a=b^2+c^2,$ where $b,c\in \mathbb Z-\{0\}.$ Then $a$ can be written as ...
Published on
11 Feb 2023 - 18:24
#elementary-number-theory
#examples-counterexamples
78
Views
Example of $g, h:\mathbb{R}^3\setminus\{0\}\to\mathbb{R}$ with this behavior in the origin and this condition on second partial derivatives
Published on
12 Feb 2023 - 12:06
#real-analysis
#calculus
#multivariable-calculus
#derivatives
#examples-counterexamples
125
Views
Examples of Fano varieties having $h^i(X, O_X) \neq 0$ for some $i >0$ in positive characteristic
Published on
25 Mar 2026 - 13:34
#algebraic-geometry
#examples-counterexamples
#positive-characteristic
101
Views
Example of a differentiable function such that its partial derivatives are not continues at some point
Published on
15 Feb 2023 - 20:26
#calculus
#multivariable-calculus
#derivatives
#partial-derivative
#examples-counterexamples
102
Views
Smallest group that is not a complex reflection group
Published on
02 Apr 2026 - 6:14
#group-theory
#finite-groups
#examples-counterexamples
#reflection-group
91
Views
Examples of unital non-associative algebras
Published on
19 Feb 2023 - 18:50
#abstract-algebra
#ring-theory
#examples-counterexamples
108
Views
Solve $x^n=1$ in a monoid.
Published on
26 Mar 2026 - 12:33
#abstract-algebra
#examples-counterexamples
#monoid
76
Views
Can the modulus of an entire function of the form $ze^{g(z)}$ tend to $1$ in the upper half-plane?
Published on
26 Mar 2026 - 16:56
#complex-analysis
#examples-counterexamples
#harmonic-functions
#entire-functions
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