t-structure
a pair of subcategories of a triangulated category satisfying properties similar to those of complexes whose cohomologies vanish in positive/negative degrees
en-GB/ˈtiː - ˈstɹʌkt͡ʃə/
en-US/ˈti - ˈstɹʌkt͡ʃɚ/
a pair of subcategories of a triangulated category satisfying properties similar to those of complexes whose cohomologies vanish in positive/negative degrees