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15
Math.TechQA.Club
2026-04-15 10:25:58
62
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kernel of $\mathrm{dim}(M/2)+1$-th power of the Green's operator of $\Delta$ on manifolds
Published on
15 Apr 2026 - 10:25
#functional-analysis
#analysis
#reference-request
#partial-differential-equations
#manifolds
50
Views
If Λ is a open subset of a metric space and $K⊆Λ_ε:=\{x:d(x,Λ^c)>ε\}$ is compact, is there a compact $L⊆Λ_ε$ s.t. $B_δ(x)⊆L$ for all $x∈K$?
Published on
16 Apr 2026 - 9:55
#analysis
#metric-spaces
#compactness
84
Views
How to prove the existence of an element of the dual of a Banach space $X$
Published on
13 Apr 2026 - 0:09
#functional-analysis
#analysis
#banach-spaces
90
Views
Does continuity on $S$ implies continuity on $\partial S$?
Published on
12 Apr 2026 - 7:46
#real-analysis
#integration
#analysis
#continuity
#riemann-integration
244
Views
Reference for the Construction of the integers.
Published on
15 Apr 2026 - 8:59
#abstract-algebra
#analysis
#reference-request
#book-recommendation
#integers
228
Views
$f: [0,1] \to \mathbb{R}$ absolutely continuous, $f' \in \{0,1\}$ (a.e.), $f(0)=0$. Prove that for some measurable subset $A$, $f(x)=m(A \cap (0,x))$
Published on
17 Apr 2026 - 10:25
#real-analysis
#analysis
#measure-theory
#lebesgue-integral
#absolute-continuity
268
Views
Writing Matrix Exponential as a finite sum
Published on
14 Apr 2026 - 11:33
#sequences-and-series
#analysis
#matrix-exponential
40
Views
Find an integrable function that is not integrable for sufficiently close functions
Published on
11 Apr 2026 - 19:04
#integration
#analysis
105
Views
Lagrange multipliers exercise
Published on
12 Apr 2026 - 23:57
#analysis
#lagrange-multiplier
378
Views
Give an example where $\int_{\bar A} f$ exists but $\int_A f$ does not for a continuos $f$ on a bounded open subset $A$ of $\mathbb{R}^n $
Published on
15 Apr 2026 - 6:43
#real-analysis
#integration
#analysis
#riemann-integration
196
Views
How can we apply here the Cauchy-Schwarz inequality?
Published on
16 Apr 2026 - 1:52
#analysis
#optimization
#maxima-minima
#cauchy-schwarz-inequality
129
Views
How to evaluate this integral using this definition?
Published on
09 Apr 2026 - 7:22
#real-analysis
#integration
#analysis
#definite-integrals
#riemann-integration
106
Views
Why is this function defined on $\mathbb{R}$ ?
Published on
25 Mar 2026 - 9:45
#analysis
#implicit-function-theorem
167
Views
Critical values of a map to a Riemann surface
Published on
11 Apr 2026 - 17:14
#complex-analysis
#analysis
#derivatives
#differential-geometry
#complex-geometry
76
Views
Integrating over integral limits
Published on
11 Apr 2026 - 13:18
#integration
#analysis
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