TY - GEN AU - Alvarez, Edgardo AU - Lizama, Carlos AU - Murillo Arcila, Marina A4 - Matemáticas PY - 2026 SN - 1424-3199 UR - http://hdl.handle.net/10498/38911 AB - We fully characterize the well-posedness in vector-valued Hölder in time spaces of a nonlocal equation involving a closed operatormatrixAwith diagonal domain, defined on a product of Banach spaces, solely in terms of the norm boundedness of a... LA - eng PB - Springer Nature KW - Well-posedness KW - block operator matrix KW - systems of nonlocal partial differential equations KW - vector-valued H¨older spaces KW - tempered fractional derivatives TI - Well-posedness of time-fractional systems in vector-valued Hölder spaces DO - 10.1007/s00028-026-01189-8 ER -