Exponential map (Lie theory) - Wikipedia: " is the multiplicative group of positive real numbers (whose Lie algebra is the additive group of all real numbers). "
'via Blog this'
Thursday, June 15, 2017
Wednesday, June 14, 2017
Representation theory of the Lorentz group - Wikipedia
Representation theory of the Lorentz group - Wikipedia: "Mathematically the Lorentz group is defined as the set of transformations preserving the bilinear form
{\displaystyle (ct_{1},x_{1},y_{1},z_{1})\cdot (ct_{2},x_{2},y_{2},z_{2})=-c^{2}t_{1}t_{2}+x_{1}x_{2}+y_{1}y_{2}+z_{1}z_{2},} "
'via Blog this'
{\displaystyle (ct_{1},x_{1},y_{1},z_{1})\cdot (ct_{2},x_{2},y_{2},z_{2})=-c^{2}t_{1}t_{2}+x_{1}x_{2}+y_{1}y_{2}+z_{1}z_{2},} "
'via Blog this'
Sunday, June 11, 2017
Friday, June 09, 2017
Adjoint representation - Wikipedia
Adjoint representation - Wikipedia: "linearizing (i.e. taking the differential of) the action of G on itself by conjugation. The adjoint repre"
'via Blog this'
'via Blog this'
Tuesday, June 06, 2017
Saturday, June 03, 2017
Friday, June 02, 2017
Home - Quora
Home - Quora: "‘At’ is a preposition to do with location. It can be a location in space or time.
at = means the action takes place for the period of the time stated.
It can be at a time as referenced by a clock (9pm) or a period of time (night).
In is a preposition to do with containment. We use it with time to indicate an action that happens within a time period.
In other words:
‘At night’ IS the time period something happens
‘In the night’ CONTAINS the time period that something happens.
"
'via Blog this'
at = means the action takes place for the period of the time stated.
It can be at a time as referenced by a clock (9pm) or a period of time (night).
In is a preposition to do with containment. We use it with time to indicate an action that happens within a time period.
In other words:
‘At night’ IS the time period something happens
‘In the night’ CONTAINS the time period that something happens.
"
'via Blog this'
Subscribe to:
Posts (Atom)