Kata Kunci Pencarian:
- Ernst Leonard Lindelöf
- Lars Edvard Phragmén
- Phragmén–Lindelöf principle
- Ernst Leonard Lindelöf
- Phragmen's voting rules
- Phragmen–Brouwer theorem
- Poincaré and the Three-Body Problem
- List of mathematicians born in the 19th century
- List of International Congresses of Mathematicians Plenary and Invited Speakers
