Skip to main content
Notice removed Draw attention by Mostafa - Free Palestine
Bounty Ended with Will Sawin's answer chosen by Mostafa - Free Palestine
Notice added Draw attention by Mostafa - Free Palestine
Bounty Started worth 50 reputation by Mostafa - Free Palestine

Let $K/k$ is a field extension and $G$ an affine group scheme over $K$. What are the Tannakian fundamental groups of these two $k$-tensor categories (with trivial fiber functors over $k$):

1. The category of pairs of finite vector spaces over $k$ with an isomorphism of their extensions to $K$,

2. The category of finite vector spaces $V$ over $k$ with a representation $\rho: G\to V\otimes_k K$$\rho: G\to \mathrm{GL}(V\otimes_k K)$.

Thanks!

Let $K/k$ is a field extension and $G$ an affine group scheme over $K$. What are the Tannakian fundamental groups of these two $k$-tensor categories (with trivial fiber functors over $k$):

1. The category of pairs of finite vector spaces over $k$ with an isomorphism of their extensions to $K$,

2. The category of finite vector spaces $V$ over $k$ with a representation $\rho: G\to V\otimes_k K$.

Thanks!

Let $K/k$ is a field extension and $G$ an affine group scheme over $K$. What are the Tannakian fundamental groups of these two $k$-tensor categories (with trivial fiber functors over $k$):

1. The category of pairs of finite vector spaces over $k$ with an isomorphism of their extensions to $K$,

2. The category of finite vector spaces $V$ over $k$ with a representation $\rho: G\to \mathrm{GL}(V\otimes_k K)$.

Thanks!

deleted 3 characters in body; edited title
Source Link

Tannakian fundamental group forof two explicit tensor categories

Let $K/k$ is a field extension and $G$ is an affine group scheme over $K$. What are the Tannakian fundamental groups of these two $k$-tensor categories (with trivial fiber functors over $k$):

1. The category of pairs of finite vector spaces over $k$ with an isomorphism of their extensions to $K$,

2. The category of finite vector spaces $V$ over $k$ with a representation $\rho: G\to V\otimes_k K$.

Thanks!

Tannakian fundamental group for two explicit tensor categories

Let $K/k$ is a field extension and $G$ is an affine group scheme over $K$. What are the Tannakian fundamental groups of these two $k$-tensor categories (with trivial fiber functors over $k$):

1. The category of pairs of finite vector spaces over $k$ with an isomorphism of their extensions to $K$,

2. The category of finite vector spaces $V$ over $k$ with a representation $\rho: G\to V\otimes_k K$.

Thanks!

Tannakian fundamental group of two explicit tensor categories

Let $K/k$ is a field extension and $G$ an affine group scheme over $K$. What are the Tannakian fundamental groups of these two $k$-tensor categories (with trivial fiber functors over $k$):

1. The category of pairs of finite vector spaces over $k$ with an isomorphism of their extensions to $K$,

2. The category of finite vector spaces $V$ over $k$ with a representation $\rho: G\to V\otimes_k K$.

Thanks!

Source Link

Tannakian fundamental group for two explicit tensor categories

Let $K/k$ is a field extension and $G$ is an affine group scheme over $K$. What are the Tannakian fundamental groups of these two $k$-tensor categories (with trivial fiber functors over $k$):

1. The category of pairs of finite vector spaces over $k$ with an isomorphism of their extensions to $K$,

2. The category of finite vector spaces $V$ over $k$ with a representation $\rho: G\to V\otimes_k K$.

Thanks!