Károly Bezdek

Hungarian-Canadian mathematician

Károly Bezdek is a Hungarian-Canadian mathematician recognized for his contributions to combinatorial, computational, and discrete geometry. His research focuses on the properties of convex bodies and discrete structures, leading to the resolution of several long-standing conjectures in Euclidean space. He currently serves as a Canada Research Chair while maintaining an active presence in the international academic community.

Academic Foundations and Early Career

Born in Budapest in 1955, Bezdek spent his formative years in Dunaújváros. During his high school and undergraduate studies, he demonstrated high proficiency in mathematics and physics competitions, earning first prize in the KöMal contest during the 1972–1973 academic year. He completed his mathematics diploma at Eötvös Loránd University in 1978. He continued his progression at the same institution, obtaining a Ph.D. in 1980 and his Habilitation in 1997. His advanced qualifications also include a Candidate of Mathematical Sciences degree and a Doctor of Mathematical Sciences degree, both awarded by the Hungarian Academy of Sciences.

THE FREE TEST
How high is yours?

Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.

Take the IQ test →

Institutional Roles and Professional Appointments

Bezdek held a long-standing faculty position at the Eötvös Loránd University Department of Geometry starting in 1978, eventually serving as chair from 1999 to 2006. His career involved significant international mobility, including a seven-year tenure at Cornell University and various visiting appointments across Canada, Germany, and the Netherlands. Since 2003, he has been a faculty member at the University of Calgary, where he acts as the Canada Research Chair in computational and discrete geometry and directs the Centre for Computational and Discrete Geometry. He maintains a professorship on leave at the University of Pannonia.

Research Contributions

The author of three books and over 130 research papers, Bezdek addresses geometric optimization and rigidity. His work includes the proof of the Kneser–Poulsen Conjecture in the Euclidean plane and for hemispheres in spherical d-space. He provided a solution to John Horton Conway’s fried potato problem alongside his brother, András Bezdek. Additional results involve the Boltyanski–Hadwiger Conjecture for fat spindle convex bodies and advancements in understanding the density of unit ball packings by refining Rogers's lemma.

Fast facts

Questions readers ask

What is Károly Bezdek's current academic role?

He is a Canada Research Chair at the University of Calgary and director of the Centre for Computational and Discrete Geometry.

What are the primary fields of his mathematical research?

His work centers on geometry, specifically combinatorial, computational, convex, and discrete geometry.

Achievements

Compare with the greats

Ludwig Van Beethoven vs Ren DescartesSrinivasa Ramanujan vs Stephen HawkingAugustine Of Hippo vs Nikola TeslaFriedrich Nietzsche vs Fyodor Dostoevsky
See the IQ Rankings →All comparisons →

Child prodigies

Tatum O'NealTatum O'NealWon an Academy Award at ten, the youngest competitive Oscar…Macaulay CulkinMacaulay CulkinCarried Home Alone to global blockbuster status and became the…Connie TalbotBritain's Got Talent Finalist at Age 6 — Debut Album Platinum…Shakuntala DeviShakuntala DeviMultiplied two 13-digit numbers in her head in 28 seconds
Child prodigies →

Play & come back tomorrow

Daily Genius Challenge · Guess the genius
Scottish physicist who unified electricity, magnetism and light into one set of equations.
Tap your answer ↓
Which Genius Are You? Free IQ Test