# isocrystalsの例文

- Over a non-algebraically closed field " k " the simple " F "-
*isocrystals* are harder to describe explicitly, but an " F "-isocrystal can still be written as a direct sum of subcrystals that are isoclinic, where an " F "-crystal is called isoclinic if over the algebraic closure of " k " it is a sum of " F "-isocrystals of the same slope. - Over a non-algebraically closed field " k " the simple " F "-isocrystals are harder to describe explicitly, but an " F "-isocrystal can still be written as a direct sum of subcrystals that are isoclinic, where an " F "-crystal is called isoclinic if over the algebraic closure of " k " it is a sum of " F "-
*isocrystals* of the same slope.