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Thibaut Dumont

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90 reputation
5
bio website math.stackexchange.com/users/…
location Lausanne, Switzerland
age 26
visits member for 6 months
seen May 21 at 8:35
stats profile views 24

PhD student at EPFL, Switzerland

www.epfl.ch/sma
90 reputation
 bio website math.stackexchange.com/users/… visits member for 6 months
5 badges
 location Lausanne, Switzerland seen May 21 at 8:35
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2 Answers

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4
 How come Cantor set is 'the' Cantor Set?
2
 Show $(W_1 + W_2 )^\perp = W_1^\perp \cap W_2^\perp$ and $W_1^\perp + W_2^\perp ⊆ (W_1 \cap W_2 )^\perp$

90 Reputation

+2 $\sigma$-Algebra generated
+4 Show that the space $l^2= \{ a \in \mathbb{R}^\mathbb{N} | \sum |a_k|^{2} < \infty \}$ is a Banach space
+10 Show $(W_1 + W_2 )^\perp = W_1^\perp \cap W_2^\perp$ and $W_1^\perp + W_2^\perp ⊆ (W_1 \cap W_2 )^\perp$
+2 Prove the following for $T$ a linear functional on $(X,\|·\|)$
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general-topology
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inner-product-space

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Mathematics Stack Exchange Mathematics 90 rep 5
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