Deligne P. Regular singular differential equations

New York: Springer, 2022. — 95 p.Dictionary
Local systems and the fundamental group
Integrable connections and local systems
Translation in terms of first-order partial differential equations
nth-order differential equations
Second-order differential equations
Multiform functions of finite determination
Regular connections
Regularity in dimension 1
Growth conditions
Logarithmic poles
Regularity in dimension n
Existence theorem
Comparison theorem
Regularity theorem
Applications and examples
Functions in the Nilsson class
The monodromy theorem (by Brieskorn)