2. BENOIT B. MANDELBROT - WACLAW SIERPINSKI

3. They are famous with their works in
fractals.
Sierpinski Triangle

4. STEFAN BANACH
He was the founder
of modern
functional analysis.

5. CAHIT ARF
He is known for the Arf
invariant of a quadratic
form in characteristic 2
(applied in knot theory
and surgery theory) in
topology, the Hasse–Arf
theorem in ramification
theory, Arf semigroups,
and Arf rings

6. FEZA GÜRSEY