I'd say progressive hardcore or metalcore, but yes they have a lot of math style in their music.
I'm not trying to be a dick but to generalize:
deathcore is bring me the horizon
mathcore is dillinger escape plan
grindcore could be anywhere from nasum to insect warfare (NOT THE LOCUST)
metalcore (metal + hardcore) usually isn't as crazy as btbam it just has a lot of melodic parts and for some bands-breakdowns (all that remains, protest the hero, SOME as I lay dying, august burns red, parkway drive)
I'd say progressive hardcore or metalcore, but yes they have a lot of math style in their music.
I'm not trying to be a dick but to generalize: deathcore is bring me the horizon mathcore is dillinger escape plan grindcore could be anywhere from nasum to insect warfare (NOT THE LOCUST) metalcore (metal + hardcore) usually isn't as crazy as btbam it just has a lot of melodic parts and for some bands-breakdowns (all that remains, protest the hero, SOME as I lay dying, august burns red, parkway drive)
just my 2 cents