Newbetuts
.
New posts in group-actions
Dynamical System Cocycles: (Semi)Group vs. Monoid Definitions - Examples When is Distinction Important?
reference-request
dynamical-systems
group-actions
semigroups
Faithful group actions for singleton group or for empty set
abstract-algebra
group-theory
elementary-set-theory
logic
group-actions
Relationship between the sizes of orbits of nodes
group-actions
trees
graph-isomorphism
Importance of group action in abstract algebra [closed]
abstract-algebra
group-theory
group-actions
$Q_8$ is isomorphic to a subgroup of $S_8$, but not isomorphic to a subgroup of $S_n$ for $n\leq 7$.
abstract-algebra
group-theory
group-actions
Prove that the map $\phi:S^3\times S^3\to{\bf GL}(4,\Bbb R)$ defined via quaternions as$\phi(p,q)(v)=pvq^{-1}$ has image ${\bf SO}(4)$
abstract-algebra
differential-geometry
lie-groups
quaternions
group-actions
Vector fields and group actions
differential-geometry
group-actions
vector-fields
Katok's Fuchsian groups: Properly discontinuous action - homeomorphisms vs isometries hypotheses
general-topology
metric-spaces
group-actions
isometry
How to check uniqueness of a subgroup from its order? [duplicate]
abstract-algebra
group-theory
finite-groups
group-actions
sylow-theory
$G\le S_n$ in which all $g\ne e$ have $<\sqrt{n}$ cycles must be $\Bbb Z_p$ or $\Bbb Z_p\rtimes\Bbb Z_q$
abstract-algebra
group-theory
permutations
group-actions
sylow-theory
Do there exist methods for determining the orbits of a group action on the cartesian product of sets?
group-theory
algorithms
group-actions
Without using Sylow: Group of order 28 has a normal subgroup of order 7
abstract-algebra
group-theory
finite-groups
group-actions
sylow-theory
Let $G$ act transitively on a set $A$. Show that if there is some $\alpha\in A$ such that $G_\alpha=\{1\}$, then $G_\beta=\{1\}$ for all $\beta\in A$
abstract-algebra
group-theory
group-actions
Is this action well defined?
group-theory
solution-verification
group-actions
Intuitive definitions of the Orbit and the Stabilizer
abstract-algebra
group-theory
group-actions
Geometric way to view the truncated braid groups?
group-theory
group-actions
knot-theory
combinatorial-geometry
braid-groups
Prev