# New post in Group-theory

## If $(G,*)$ is an abelian group, then show that $(a * b)^n = a^n * b^n$.

August 21st, 2022

## Why are the nonzero integers under multiplication NOT a group?

November 8th, 2022

July 23rd, 2022

## If a cyclic group G has exactly three subgroups then find order of G.

August 18th, 2022

July 23rd, 2022

## Show that this simple map is an isomorphism

December 11th, 2022

## Giving examples of some group $G$ and elements $g,h \in G$ where $(gh)^{n}\neq g^{n} h^{n}$.

December 7th, 2022

July 23rd, 2022

July 23rd, 2022

## group of order 27 must have a subgroup of order 3

August 15th, 2022

August 1st, 2022

July 30th, 2022

## Cyclic group of order 8

September 8th, 2022

July 30th, 2022

August 9th, 2022

July 21st, 2022

August 1st, 2022

August 1st, 2022

## Examples of molecules with D4 and C9 point groups

August 13th, 2022

August 1st, 2022

## Is there a possible distortion of XeF6 from Oh point group to reduced symmetry?

September 22nd, 2020

June 12th, 2020

August 1st, 2022

## Why do we need the identity operator, E

December 3rd, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

April 25th, 2020

## Why is the letter J omitted in the spdf... sequence?

December 22nd, 2020