42,772 articles
Matroid minor
A matroid minor is any matroid obtained from a matroid M by a sequence of deletions and contractions of elements, written M\D/C, paralleling graph minors and underlying the excluded-minor theory that characterizes minor-closed classes.
Matroid oracle
A matroid oracle is an abstract interface through which an algorithm accesses a matroid, most commonly an independence oracle that answers whether a given set is independent.
Matroid parity problem
The matroid parity problem, also called the matroid matching or matchoid problem, seeks a maximum-size independent set in a matroid whose elements are grouped into pairs.
Matroid representation
A matroid representation represents an abstract matroid as a matrix over a field whose linearly independent columns are exactly the matroid's independent sets; a matroid is representable when such a matrix exists.
Matroids and algebraic geometry
Matroids and algebraic geometry is the area where Hodge theory applied to matroid Chow rings proved log-concavity of characteristic-polynomial coefficients, resolving the Heron–Rota–Welsh conjecture, with tropical geometry linking matroids to linear spaces.
MATS and LaSpec
MATS and LaSpec are complementary precision experiments under construction at FAIR in Darmstadt, Germany, part of NUSTAR, studying exotic short-lived nuclei via Penning-trap mass measurements and collinear laser spectroscopy.
Mats G. L. Gustafsson
Mats G. L. Gustafsson (1960–2011) was a Swedish-born physicist who pioneered structured illumination microscopy and super-resolution fluorescence microscopy, working at UC San Francisco and Janelia.
Mats R. Andersson
Mats R. Andersson, also published as Mats Andersson, is a polymer chemist who designs conjugated polymers for organic solar cells and directs nanoscience at Flinders University in Adelaide.
Matt O'Dowd (astrophysicist)
Matt O'Dowd (Matthew John O'Dowd) is an astrophysicist, associate professor at CUNY Lehman College, and host and writer of the weekly PBS Space Time YouTube series.
Matteo Cargnello
Matteo Cargnello (born 1984) is an Italian-born chemical engineer, associate professor of chemical engineering at Stanford since 2023, known for work on catalyst deactivation and stability.
Matteo Lucchini
Matteo Lucchini, born 1984 in Angera, Italy, is an Italian physicist at Politecnico di Milano who leads attosecond beamlines studying ultrafast electron dynamics in solids.
Matter
Matter is anything that occupies space and has mass, the substance of all physical objects, existing as solids, liquids, gases, and plasma, and built from elementary particles.
Matter and Interactions
Matter and Interactions, or M&I, is a calculus-based introductory physics textbook by Chabay and Sherwood emphasizing fundamental principles, the atomic nature of matter, and student-written VPython models.
Matter coupling in loop quantum gravity
Matter coupling in loop quantum gravity is the set of constructions placing fermions, Yang–Mills fields, and scalars on discrete quantum geometry without a background spacetime.
Matter in Extreme Conditions
Matter in Extreme Conditions, known as MEC, is an experimental instrument at the Linac Coherent Light Source in Menlo Park, California, studying matter under extreme temperatures and pressures.
Matter power spectrum
The matter power spectrum, written P(k), quantifies how clumpy the Universe's matter distribution is on different scales, measured from galaxy surveys and weak gravitational lensing.
Matter wave
A matter wave, also called a de Broglie wave, is the wave associated with a material particle, proposed by Louis de Broglie in 1924 and confirmed by electron diffraction in 1927.
Matter wave interferometry
Matter wave interferometry splits a beam of atoms or molecules into coherent wave packets along different paths and recombines them, underpinning precision gravimeters, gyroscopes, and tests of fundamental physics.
Matter-dominated era
The matter-dominated era is the period of cosmic history, beginning about 50,000 years after the Big Bang, when matter's density exceeded radiation's and drove cosmic expansion.
Matter–radiation equality
Matter–radiation equality is the epoch in the early universe, about 51,000 years after the Big Bang at redshift roughly 3400, when matter first outweighed radiation, allowing density fluctuations to grow.
Matthew B. Francis
Matthew B. Francis, born 1971, is a chemist and distinguished professor at UC Berkeley, chair of chemistry since 2018, known for site-selective protein bioconjugation and virus-templated materials for drug delivery.
Matthew B. Squires
Matthew B. Squires is a Senior Research Physicist at the Air Force Research Laboratory who received a 2011 PECASE award for his work with laser-cooled atoms.
Matthew Bailes
Matthew Bailes is an Australian astrophysicist at Swinburne University of Technology, co-discoverer of the first fast radio burst in 2007, who won the 2023 Shaw Prize and the 2024 Prime Minister's Prize for Science.
Matthew Bogyo
Matthew G. Bogyo is a Stanford professor of pathology and microbiology known for co-establishing activity-based protein profiling, which measures enzyme activity directly in living tissue.
Matthew C. Hansen
Matthew C. Hansen is a University of Maryland remote sensing scientist known for the 2013 Science global forest change maps and GLAD near-real-time deforestation alerts.
Matthew D Disney
Matthew D Disney is an American chemical biologist and Chair of Chemistry at The Wertheim UF Scripps Institute in Jupiter, Florida, known for designing small-molecule drugs that target RNA.
Matthew Dietrich
Matthew Dietrich is an American atomic physicist at Argonne National Laboratory who made the first measurement of the radium-225 electric dipole moment and won a 2017 PECASE award.
Matthew effect
The Matthew effect, also called accumulated advantage, is the pattern in which early advantages grow over time, coined by sociologist Robert K. Merton in 1968.
Matthew England
Matthew England is an Australian climate scientist and oceanographer, Scientia Professor of Ocean & Climate Dynamics at UNSW Sydney, known for Southern Ocean modeling and explaining the global warming hiatus.
Matthew F. Pusey
Matthew F. Pusey is a British quantum information theorist at the University of York, first author of the 2012 Pusey–Barrett–Rudolph theorem on the reality of the quantum state.