List questions from direct-sum

Published on 22 Jun 2019 - 6:42

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Quotient Modules and their Direct Sum

Published on 25 Mar 2026 - 11:12

151

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A subbundle of a direct sum of vector bundles

Published on 29 Jun 2019 - 16:09

1.2k

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The bases of two subspaces form the basis of their direct sum - is my proof correct?

Published on 06 Jul 2019 - 22:46

404

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Given a subspace $W$ of $V$, does there always exist $\overline{W}$ such that $V = W\oplus \overline{W}$?

Published on 09 Jul 2019 - 0:08

41

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Why specify certain vector space sums as direct?

Published on 09 Jul 2019 - 7:30

139

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Compute the $K$-theories of crossed products $K_0(C_0(\mathbb N\times G)\rtimes_r G)$ and $K_0(\ell^\infty(\mathbb N,C_0(G))\rtimes_r G)$

Published on 25 Mar 2026 - 7:46

93

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Linear Algebra - direct sums

Published on 10 Jul 2019 - 7:12

117

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Coproduct of metrizable vector spaces

Published on 12 Jul 2019 - 16:46

53

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Showing $A= A_r \bigoplus A_s$

Published on 16 Jul 2019 - 14:45

86

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Simplifying sum involving combinations

Published on 23 Jul 2019 - 13:50

44

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Tensors of type $(r,s)$ in relation to tensor algebra $T(V)$

Published on 26 Mar 2026 - 7:38

80

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$\ell^2$ is a projective limit in the Category of locally convex spaces?

Published on 26 Mar 2026 - 1:17

100

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Is it true that $U \cap (W_1 \oplus W_2) = (U \cap W_1) \oplus (U \cap W_2)$?

Published on 31 Jul 2019 - 23:09

797

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Direct sum of $L^2$ spaces

Published on 06 Aug 2019 - 9:16

List Question

Direct sum of vector sub spaces in $\mathbb{R}^4$

Quotient Modules and their Direct Sum

A subbundle of a direct sum of vector bundles

The bases of two subspaces form the basis of their direct sum - is my proof correct?

Given a subspace $W$ of $V$, does there always exist $\overline{W}$ such that $V = W\oplus \overline{W}$?

Why specify certain vector space sums as direct?

Compute the $K$-theories of crossed products $K_0(C_0(\mathbb N\times G)\rtimes_r G)$ and $K_0(\ell^\infty(\mathbb N,C_0(G))\rtimes_r G)$

Linear Algebra - direct sums

Coproduct of metrizable vector spaces

Showing $A= A_r \bigoplus A_s$

Simplifying sum involving combinations

Tensors of type $(r,s)$ in relation to tensor algebra $T(V)$

$\ell^2$ is a projective limit in the Category of locally convex spaces?

Is it true that $U \cap (W_1 \oplus W_2) = (U \cap W_1) \oplus (U \cap W_2)$?

Direct sum of $L^2$ spaces

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