Por petición de

Por petición de
 

ENGLISH?
Ejemplo:
Vamos a ver de nuevo la secuencia por/a petición de vuestra compañera Rita.
En petición de tendría otro significado
Ej. Hizó huelga de hambre en petición de asilo.
Can anybody give the 2 equivalents in English?

We're going to see the sequence again at your colleague Rita's request.

She went on hunger strike to demand asylum. (Aquí "request" me parece demasiado débil).

No existe una expression with "petition", y si existe que significa?

A petition is a formal request, and often used in legal jargon. (He put in a petition for asylum while awaiting deportation.)

Commonly a petition is a request signed by many people in order to get
a politician enrolled in a race--or any form signed by many people requesting a change in something or other.

It is also used like that in Spanish.