185 reputation
12
bio website
location
age
visits member for 2 years, 3 months
seen Mar 11 at 3:33

Jul
2
awarded  Curious
Mar
11
accepted From a vector to a skew symmetric matrix
Mar
10
awarded  Popular Question
Feb
22
awarded  Suffrage
Oct
18
awarded  Critic
Oct
17
comment Component-free formula for the determinant of a tensor
Instructive answer. I was hoping for something simpler, in a sense that it would require a lighter background.
Oct
17
accepted Component-free formula for the determinant of a tensor
Oct
17
revised Component-free formula for the determinant of a tensor
added 231 characters in body
Oct
17
comment Component-free formula for the determinant of a tensor
@MarianoSuárez-Alvarez $\mathbf{m},\mathbf{n},\mathbf{p}$ being an orthonormal basis of $\mathbb{R}^3$, consider the determinant of $\mathbb{A}=\mathbf{m}\otimes\mathbf{n}+\mathbf{n}\otimes\mathbf{m}+\mathbf{p} \otimes \mathbf{p}$.
Oct
17
comment Component-free formula for the determinant of a tensor
@MarianoSuárez-Alvarez Yes, this is one way to find the determinant for this example. How about a non-singular tensor?
Oct
17
comment Component-free formula for the determinant of a tensor
@Muphrid good point. I want to write $\mathbf{a}$ but I wrote $\mathbf{m}$. The post is corrected.
Oct
17
revised Component-free formula for the determinant of a tensor
edited body
Oct
17
revised Component-free formula for the determinant of a tensor
added 66 characters in body
Oct
17
asked Component-free formula for the determinant of a tensor
Sep
25
revised Tensors: intrinsic versus index notation
deleted 4 characters in body
Aug
26
revised Sketching Domains and Images in Complex Analysis
Latex improvement
Aug
26
suggested suggested edit on Sketching Domains and Images in Complex Analysis
Aug
26
comment Tensors: intrinsic versus index notation
Coming back to Equation (1) in my initial message, the object $\mathbf{e}_i\otimes\mathbf{e}_j$ reflect a Cartesian basis: true or false? If it is true, why can't we use this notation for a non-cartesian basis?
Aug
26
revised Tensors: intrinsic versus index notation
added 15 characters in body
Aug
16
revised variational problem -exercice
Latex and spelling