User Ali Taghavi

2 votes

Banach algebraic proof of the Borsuk Ulam theorem

answered Oct 18, 2015 at 13:52

1 vote

Meeting a set of lines in $\mathbb{R}^n$

answered Aug 7, 2017 at 10:11

1 vote

A curvature description for center condition for quadratic vector field

answered Aug 15, 2017 at 0:16

1 vote

Accepted

Help trying to show that $p_0a_1 =0$

answered Aug 15, 2017 at 9:47

1 vote

ODEs whose finite-time solutions are not L^2 on their interval of definition

answered Sep 9, 2017 at 9:49

1 vote

Isochronization of quadratic vector fields with center

answered Jun 21, 2018 at 20:56

1 vote

Examples of common false beliefs in mathematics

answered Feb 24, 2016 at 19:35

1 vote

Accepted

Connectedness properties of groups of homeomorphisms

answered Mar 9, 2014 at 19:08

1 vote

Are there some other notions of "curvature" which measure how space curves?

answered Dec 4, 2013 at 8:34

1 vote

Frobenius rank of a manifold

answered Aug 31, 2014 at 9:35

1 vote

A complex limit cycle not intersecting the real plane(2)

answered Apr 7, 2022 at 17:28

1 vote

Can a holomorphic vector field have an attractor homoclinic loop?

answered Apr 23, 2022 at 11:32

1 vote

Are there some other notions of "curvature" which measure how space curves?

answered Oct 14, 2018 at 11:21

1 vote

Einstein metrics on the tangent bundle

answered May 25 at 16:30

1 vote

How to start game theory?

answered Jan 28, 2023 at 11:11

0 votes

Topological spaces in which countable intersections of dense open sets have dense interior

answered Aug 4 at 20:46

0 votes

The perturbation of non-Hamiltonian algebraic vector fields

answered Nov 26, 2020 at 21:38

0 votes

Does for every vector field there always exist a volume form for which the vector field is a homothety?

answered Dec 29, 2022 at 13:36

0 votes

Does an analytic tensorial Lie structure on $S^2$ gives a fiberwise Abelian Lie algebra structure?

answered Aug 25, 2015 at 23:27

0 votes

Derivations of $\chi^{\infty}(M)$ which are elliptic operator

answered Apr 28, 2019 at 15:06

0 votes

A non-vanishing vector field on $S^3$ whose flow does not preserve any transversal foliation

answered Jul 6, 2019 at 13:53

0 votes

Prime/undecomposable matrices

answered Aug 13, 2019 at 15:42

-1 votes

Geometric interpretation of trace

answered Aug 13, 2014 at 10:16

-1 votes

Coupled Riccati equations

answered Mar 15, 2023 at 12:14

-1 votes

Nonequivalent definitions in Mathematics

answered Sep 2, 2023 at 19:05

-2 votes

Are real-analytic functions in $\mathbb{R}^2$ holomorphic after suitable change of coordinates?

answered Aug 3 at 21:41

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56 Answers

Banach algebraic proof of the Borsuk Ulam theorem

Meeting a set of lines in $\mathbb{R}^n$

A curvature description for center condition for quadratic vector field

Help trying to show that $p_0a_1 =0$

ODEs whose finite-time solutions are not L^2 on their interval of definition

Isochronization of quadratic vector fields with center

Examples of common false beliefs in mathematics

Connectedness properties of groups of homeomorphisms

Are there some other notions of "curvature" which measure how space curves?

Frobenius rank of a manifold

A complex limit cycle not intersecting the real plane(2)

Can a holomorphic vector field have an attractor homoclinic loop?

Are there some other notions of "curvature" which measure how space curves?

Einstein metrics on the tangent bundle

How to start game theory?

Topological spaces in which countable intersections of dense open sets have dense interior

The perturbation of non-Hamiltonian algebraic vector fields

Does for every vector field there always exist a volume form for which the vector field is a homothety?

Does an analytic tensorial Lie structure on $S^2$ gives a fiberwise Abelian Lie algebra structure?

Derivations of $\chi^{\infty}(M)$ which are elliptic operator

A non-vanishing vector field on $S^3$ whose flow does not preserve any transversal foliation

Prime/undecomposable matrices

Geometric interpretation of trace

Coupled Riccati equations

Nonequivalent definitions in Mathematics

Are real-analytic functions in $\mathbb{R}^2$ holomorphic after suitable change of coordinates?