Physical and mathematical scientists

Heisuke Hironaka (広中平祐)

Heisuke Hironaka (広中平祐) was a Japanese mathematician, born in 1931, who solved resolution of singularities in algebraic geometry and received the Fields Medal in 1970, the second Japanese mathematician to win it.

Helen Czerski

Helen Czerski is a British physicist at University College London who studies bubbles and breaking waves at the ocean surface, and presents BBC science documentaries.

Helen Quinn

Helen Rhoda Quinn (born 1943) is an Australian-born American theoretical particle physicist, Professor Emerita at SLAC, known for the Peccei–Quinn symmetry behind the axion and for the Georgi–Quinn–Weinberg calculation.

Helen Sharman

Helen Sharman is a British chemist who became the first Briton in space and the first woman to visit Mir, flying there in May 1991.

Helen Thom Edwards

Helen Thom Edwards (1936–2016) was an American accelerator physicist at Fermilab who led the Tevatron, the first superconducting proton synchrotron and the world's most powerful collider for 27 years.

Helena Rasiowa

Helena Rasiowa (1917–1994) was a Polish mathematician and logician who established algebraic methods for studying classical, intuitionistic, modal, and many-valued logics, heading mathematical logic at the University of Warsaw.

Hélène Langevin-Joliot

Hélène Langevin-Joliot (born 1927) is a French nuclear physicist, director of research at CNRS, known for her work at Orsay and as the granddaughter of Marie and Pierre Curie.

Helge von Koch

Helge von Koch, full name Nils Fabian Helge von Koch, was a Swedish mathematician whose 1904 curve without a tangent became the early fractal known as the Koch snowflake.

Hellmut Fritzsche

Hellmut Fritzsche (1927–2018) was a German-born American experimental physicist and Louis Block Professor at the University of Chicago, a leading experimenter on amorphous semiconductors who confirmed Ovshinsky's switching effect and co-developed the Cohen–Fritzsche–Ovshinsky band model.

Hellmuth Kneser

Hellmuth Kneser (1898–1973) was a German mathematician best known for proving the prime decomposition of 3-manifolds in 1929 and constructing a half-iterate of the exponential function in 1950.

Helma Wennemers

Helma Wennemers (born 1969) is a German organic chemist and professor of organic chemistry at ETH Zurich, known for peptide catalysts, synthetic collagen, and supramolecular chemistry.

Helmut Cölfen

Helmut Cölfen (1965–2023) was a German physical and colloid chemist, professor of physical chemistry at the University of Konstanz from 2010, known for discovering stable pre-nucleation clusters and the concept of mesocrystals.

Helmut Grunsky

Helmut Grunsky (1904–1986) was a German mathematician whose 1939 Grunsky inequalities became a standard tool of geometric function theory and work on the Bieberbach conjecture.

Helmut Hasse

Helmut Hasse (1898–1979) was a German mathematician who shaped 20th-century number theory with the local–global principle, the Brauer–Hasse–Noether theorem, and the Hasse bound for elliptic curves.

Helmut Hofer

Helmut Hofer is a German and American mathematician at the Institute for Advanced Study, a founder of symplectic topology known for Hofer geometry and the Hofer–Zehnder capacity.

Helmut Landsberg

Helmut Erich Landsberg (1906–1985) was a German-born American climatologist who directed the U.S. Weather Bureau's Office of Climatology, wrote Physical Climatology, and received the National Medal of Science in 1985.

Sep 20, 2026

Helmut Schwarz

Helmut Schwarz, born in 1943, is a German chemist at TU Berlin known for gas-phase mass spectrometry, two-state reactivity, and methane activation; he won the 2025 Wolf Prize.

Helmut Wielandt

Helmut Wielandt (1910–2001) was a German mathematician trained in Berlin under Issai Schur, known for the Wielandt inequality, the Collatz–Wielandt formula, and his 1950 proof of the Perron–Frobenius theorem.

Helmut Zeisel

Helmut Zeisel is an Austrian mathematician and industrial researcher known for the Zeisel numbers, squarefree integers whose prime factors follow a linear recurrence, introduced in 1994.

Sep 20, 2026

Helmuth Möhwald

Helmuth Möhwald (1946–2018) was a German physicist and physical chemist, founding director of the Max Planck Institute of Colloids and Interfaces, known for layer-by-layer film assembly and hollow capsule templating.

Hemamala I. Karunadasa

Hemamala I. Karunadasa is a Sri Lankan-born materials chemist, Professor of Chemistry at Stanford with a joint appointment at SLAC, known for lead-free halide perovskites for solar cells and lighting.

Hendrik C. van de Hulst

Hendrik C. van de Hulst (1918–2000) was a Dutch astronomer at Leiden University who predicted the 21-centimeter hydrogen line in 1944 and wrote the classic Light Scattering by Small Particles.

Hendrik Casimir

Hendrik Casimir (1909–2000) was a Dutch theoretical physicist, trained by Ehrenfest, Bohr, and Pauli, who predicted the Casimir effect in 1948 and directed research at Philips until 1972.

Hendrik Jan Vink

Hendrik Jan Vink (1915–2009) was a Dutch solid-state physicist who spent his career at Philips NatLab in Eindhoven and, with F.A. Kröger, founded defect chemistry.

Hendrik Kloosterman

Hendrik Douwe Kloosterman (1900–1968) was a Dutch mathematician and Leiden professor known for the Kloosterman sums, introduced in his 1926 paper, and his refinement of the Hardy–Littlewood circle method.

Hendrik Lenstra

Hendrik Willem Lenstra Jr., born 1949, is a Dutch number theorist who created the LLL lattice reduction and elliptic curve factoring algorithms and taught at Berkeley and Leiden.

Hendrik Lorentz

Hendrik Lorentz, fully Hendrik Antoon Lorentz, was a Dutch theoretical physicist who refined Maxwell's electromagnetic theory, developed the electron theory, and shared the 1902 Nobel Prize in Physics.

Hendrik van der Bijl

Hendrik Johannes van der Bijl (1887–1948) was a South African physicist who gave the triode vacuum tube its mathematical basis and founded Eskom and Iscor.

Hendrika Johanna van Leeuwen

Hendrika Johanna van Leeuwen was a Dutch physicist whose 1919 Leiden thesis proved the Bohr–van Leeuwen theorem, that classical statistical mechanics gives zero magnetization; she later became the first female lector at TU Delft.