Question

Is there a generalization of universal algebras that allows the use of multiple sets?

score 229 · Answer 1 · 2026-03-25 04:40:58

229

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Is there a generalization of universal algebras that allows the use of multiple sets?

Published on 25 Mar 2026 - 4:40

score 189 · Answer 2 · 2018-06-14 08:32:03

189

Views

Does the preimage of finite codimension spaces have finite codimension?

Published on 14 Jun 2018 - 8:32

score 449 · Answer 3 · 2018-06-15 10:59:24

449

Views

What is a local base for a topological vector space

Published on 15 Jun 2018 - 10:59

score 66 · Answer 4 · 2026-03-25 13:56:18

66

Views

If $A$ is an affine space in $\mathbb{R}^n$, is $A-x$ a subspace of $\mathbb{R}^n$ for every $x \in A$?

Published on 25 Mar 2026 - 13:56

score 79 · Answer 5 · 2018-06-15 15:17:36

79

Views

Linear algebra with matrices not only for $\mathbb{R}^n$?

Published on 15 Jun 2018 - 15:17

score 143 · Answer 6 · 2018-06-15 16:50:16

143

Views

$W$ be a $d$-dimensional subspace of $\mathbb R^n$. Then how to show that $|\{(x_1,...,x_n) \in W : x_i \in \{0,1\}\}| \le 2^d$?

Published on 15 Jun 2018 - 16:50

score 45 · Answer 7 · 2018-06-15 21:21:40

45

Views

Unit vectors with same Geometric Mean

Published on 15 Jun 2018 - 21:21

score 2.1k · Answer 8 · 2026-03-25 13:05:00

2.1k

Views

Coordinates vs components of a vector and Coordinate system vs basis of vector space?

Published on 25 Mar 2026 - 13:05

score 25 · Answer 9 · 2018-06-16 12:42:13

25

Views

$a_{1}v_{1}+a_{2}v_{2}+\cdots+a_{i}v_{i}$=$u$, but some of $a_{j}$ is not unique

Published on 16 Jun 2018 - 12:42

score 6.2k · Answer 10 · 2026-03-26 22:53:15

6.2k

Views

Clarification: Is it true trace of $(A^TA)$ is induced matrix norm squared?

Published on 26 Mar 2026 - 22:53

score 35 · Answer 11 · 2018-06-17 11:22:04

35

Views

Subspace complementary to countable many subspaces.

Published on 17 Jun 2018 - 11:22

score 888 · Answer 12 · 2026-03-28 21:34:29

888

Views

Does the typical vector space of polynomials up to a certain degree need to have the constant vectors

Published on 28 Mar 2026 - 21:34

score 649 · Answer 13 · 2018-06-18 02:06:37

649

Views

V is a subspace of R³. What are the possible dimensions to V?

Published on 18 Jun 2018 - 2:06

score 4.8k · Answer 14 · 2018-06-18 05:07:52

4.8k

Views

Let V the space vector of 2x2 matrices in IR. Let W be the subspace of symmetric matrices

Published on 18 Jun 2018 - 5:07

score 49 · Answer 15 · 2018-06-18 08:45:30

49

Views

Find out whether W is a subspace or not.

Published on 18 Jun 2018 - 8:45

List Question

Is there a generalization of universal algebras that allows the use of multiple sets?

Does the preimage of finite codimension spaces have finite codimension?

What is a local base for a topological vector space

If $A$ is an affine space in $\mathbb{R}^n$, is $A-x$ a subspace of $\mathbb{R}^n$ for every $x \in A$?

Linear algebra with matrices not only for $\mathbb{R}^n$?

$W$ be a $d$-dimensional subspace of $\mathbb R^n$. Then how to show that $|\{(x_1,...,x_n) \in W : x_i \in \{0,1\}\}| \le 2^d$?

Unit vectors with same Geometric Mean

Coordinates vs components of a vector and Coordinate system vs basis of vector space?

$a_{1}v_{1}+a_{2}v_{2}+\cdots+a_{i}v_{i}$=$u$, but some of $a_{j}$ is not unique

Clarification: Is it true trace of $(A^TA)$ is induced matrix norm squared?

Subspace complementary to countable many subspaces.

Does the typical vector space of polynomials up to a certain degree need to have the constant vectors

V is a subspace of R³. What are the possible dimensions to V?

Let V the space vector of 2x2 matrices in IR. Let W be the subspace of symmetric matrices

Find out whether W is a subspace or not.

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