User Filippo Bianchi

7 votes

3 answers

169 views

If $n>1$, the square of the odd Fibonacci number $F(2n+1)$ can be written as the sum of exactly $F(2n+1)+1$ nonzero squares.

asked Mar 22, 2022 at 10:57

3 votes

1 answer

67 views

Quotient of $R[x,x^{-1}]$ as $R[x]$-module

asked Mar 31, 2022 at 15:20

3 votes

2 answers

58 views

Relating the pairwise determinants of $n$ elements of $\mathbb{Z}^2$

asked Sep 24, 2022 at 11:18

3 votes

1 answer

72 views

Relation between the two spin structures of $S^1$

asked Oct 13, 2021 at 11:40

3 votes

0 answers

167 views

Operation $\ominus$ between Hilbert spaces

asked Jan 2, 2021 at 2:05

2 votes

1 answer

197 views

Presentation of a group with the same number of generators and relations

asked Sep 14, 2021 at 14:56

1 vote

0 answers

108 views

Smooth simple representatives of elements of the fundamental group

asked May 14, 2020 at 22:26

1 vote

1 answer

52 views

Tying a portion of a knot diagram

asked May 5, 2020 at 11:02

1 vote

0 answers

46 views

Smoothness of group action on Borel spaces

asked Jan 4, 2021 at 18:27

1 vote

0 answers

64 views

A question on finitely generated $\mathbb{C}$-algebra

asked Jan 13, 2021 at 9:36

1 vote

0 answers

148 views

Quotient of an affine scheme under the action of a finite group

asked Feb 19, 2021 at 15:00

1 vote

2 answers

97 views

Coefficient of integral dependence and prime ideals

asked Feb 20, 2021 at 12:45

1 vote

0 answers

97 views

Lattice embeddings in $\mathbb{Z}^n$

asked Feb 17, 2022 at 22:15

1 vote

1 answer

73 views

Obstruction theory and maps from a 3-manifold to the sphere

asked Mar 22, 2022 at 10:24

1 vote

0 answers

18 views

Tensor diagrams representing scalars

asked Sep 25, 2022 at 20:45

1 vote

0 answers

93 views

Heegaard Floer homology of a genus two diagram of $S^3$

asked Mar 30, 2022 at 10:36

0 votes

0 answers

156 views

Unimodular matrices and row operations

asked Oct 13, 2021 at 12:00

0 votes

0 answers

54 views

A variation on the Markov Diophantine equation

asked Nov 17, 2021 at 21:26

0 votes

0 answers

40 views

Regularity of quotient of polynomial ring

asked Apr 2, 2021 at 16:24

0 votes

0 answers

149 views

Surjectivity of proper morphism

asked Apr 3, 2021 at 9:09

0 votes

0 answers

159 views

Hyperbolic manifolds that are quotient of hyperbolic space

asked May 5, 2020 at 11:54

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21 Questions

If $n>1$, the square of the odd Fibonacci number $F(2n+1)$ can be written as the sum of exactly $F(2n+1)+1$ nonzero squares.

Quotient of $R[x,x^{-1}]$ as $R[x]$-module

Relating the pairwise determinants of $n$ elements of $\mathbb{Z}^2$

Relation between the two spin structures of $S^1$

Operation $\ominus$ between Hilbert spaces

Presentation of a group with the same number of generators and relations

Smooth simple representatives of elements of the fundamental group

Tying a portion of a knot diagram

Smoothness of group action on Borel spaces

A question on finitely generated $\mathbb{C}$-algebra

Quotient of an affine scheme under the action of a finite group

Coefficient of integral dependence and prime ideals

Lattice embeddings in $\mathbb{Z}^n$

Obstruction theory and maps from a 3-manifold to the sphere

Tensor diagrams representing scalars

Heegaard Floer homology of a genus two diagram of $S^3$

Unimodular matrices and row operations

A variation on the Markov Diophantine equation

Regularity of quotient of polynomial ring

Surjectivity of proper morphism

Hyperbolic manifolds that are quotient of hyperbolic space