The phrase "and centred on a" is correct and usable in written English.
It can be used to indicate a focus or emphasis on a particular subject or theme within a larger context.
Example: "The discussion was rich and centred on a variety of innovative solutions to climate change."
Alternatives: "and focused on a" or "and revolving around a".
Last of the Summer Wine was set and filmed in and around Holmfirth, West Yorkshire, England and centred on a trio of older men and their youthful antics; the membership of the trio changed several times over the years.
Alan Bennett depicts Britten in a 2009 play The Habit of Art, set while Britten is composing Death in Venice and centred on a fictional meeting between Britten and Auden.
The bonding mode of teaH2− is seen elsewhere, being 2.2.1.1.1 and centred on a LnIII ion.
He scored a critical hit with his second film, L'Esquive (2003) – aka Games of Love and Chance – a boisterously entertaining drama set on a Parisian housing estate and centred on a school production of a Marivaux play.
Reasons for being 'unsure' about prescribing became evident in interviews and centred on a lack of knowledge and the belief that drug treatment is best managed through specialist services; this was evidence of 'typecasting' naloxone prescribing as a specialist service.
Model residuals were normally distributed and centred on zero, suggesting a valid statistical model.
The region, formed in 1954 and centred on Belgorod city, is situated in a forest-steppe with rich soils.
A third view of the cosmos, generally found in the monotheistic religions of Judaism, Zoroastrianism, Christianity, and Islām, centred on a tripartite universe: celestial, terrestrial, and subterrestrial.
The strongpoint was defended by "a reinforced platoon from the 736th Grenadiers", and was centred on a group of fortified houses and 50 mm antitank guns.
Yet far from being gloomy, the room feels warm, contemporary and inviting, centred on a chunky, wooden table, surrounded by vintage swivel chairs and a bench.
Increasingly, the politics of London policing have centred on budget cuts and an unending quarrel over "police numbers".
