Topics in mathematics
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- R. H. BingAmerican mathematician
- Radical of a Lie algebraIn the mathematical field of Lie theory, the radical of a Lie algebra is the largest solva
- Rado graphIn the mathematical field of graph theory, the Rado graph, Erdős–Rényi graph, or random gr
- Rafael Bombelli16th-century Italian mathematician (1526–1572)
- Rajagopalan ParthasarathyRajagopalan Parthasarathy is an Indian mathematician who specialised in representation the
- Ramanujan–Petersson conjectureUnsolved problem in mathematics
- Ramification (mathematics)In geometry, ramification is 'branching out', in the way that the square root function, fo
- Random geometric graphIn graph theory, the mathematically simplest spatial network
- Random graphGraph generated by a random process
- Random numberNumber generated by a random process
- Rank of a groupIn the mathematical subject of group theory, the rank of a group G, denoted rank(G), can r
- Rank of an abelian groupIn mathematics, the rank, Prüfer rank, or torsion-free rank of an abelian group A is the c
- Raoul BottHungarian-American mathematician (1923-2005)
- Raoul BricardRaoul Bricard (23 March 1870 – 26 November 1943) was a French engineer and a mathematician
- Raphael MeldolaRaphael Meldola FRS (19 July 1849 – 16 November 1915) was a British chemist and entomologi
- Rate of convergenceSpeed of convergence of a mathematical sequence
- Rational normal curveIn mathematics, the rational normal curve is a smooth, rational curve C of degree n in pro
- Rational pointIn number theory and algebraic geometry, a rational point of an algebraic variety is a poi
- ReachabilityIn graph theory, reachability refers to the ability to get from one vertex to another with
- Real algebraic geometryStudy of systems of inequalitites
- Real coordinate spaceSpace formed by the ''n''-tuples of real numbers
- Real form (Lie theory)In mathematics, the notion of a real form relates objects defined over the field of real a
- Real projective lineProjective line over the real numbers
- Real projective spaceType of topological space
- Reciprocity (network science)In network science, reciprocity is a measure of the likelihood of vertices in a directed n
- Reciprocity lawIn mathematics, a reciprocity law is a generalization of the law of quadratic reciprocity
- Reductive groupConcept in mathematics
- Redundancy theory of truthAccording to the redundancy theory of truth (also known as the disquotational theory of tr
- Reflection groupIn group theory and geometry, a reflection group is a discrete group which is generated by
- Reform mathematicsReform mathematics is an approach to mathematics education, particularly in North America.
- RegiomontanusGerman mathematician and astronomer (1436–1476)
- Regression toward the meanStatistical phenomenon
- Regular grammarType of formal grammar
- Regular languageFormal language that can be expressed using a regular expression
- Regular polytopePolytope with highest degree of symmetry
- Regular representationIn mathematics, and in particular the theory of group representations, the regular represe
- Regular tetrahedronSolid with four equal triangular faces
- Relation (mathematics)Relationship between two sets, defined by a set of ordered pairs
- René-Louis BaireFrench mathematician (1874–1932)
- Repeated measures designType of research design
- Representation (mathematics)An object whose endomorphisms are isomorphic to another structure
- Representation of a Lie groupGroup representation
- Representation theory of semisimple Lie algebrasIn mathematics, the representation theory of semisimple Lie algebras is one of the crownin
- Representation theory of SL2(R)Unitary representations of a Lie group
- Representation theory of the Galilean groupRepresentation theory of the symmetries of non-relativistic quantum space
- Representation theory of the Poincaré groupRepresentation theory of an important group in physics
- Representations of classical groupsIn mathematics, the finite-dimensional representations of the complex classical Lie groups
- Residue fieldField arising from a quotient ring by a maximal ideal
- Restricted sumsetIn additive number theory and combinatorics, a restricted sumset has the form
- Reverse mathematicsBranch of mathematical logic
- Reverse perspectiveIn art, a form of perspective drawing
- Rhind Mathematical PapyrusAncient Egyptian mathematical document
- Richard BorcherdsBritish-American mathematician (born 1959)
- Richard DuffinRichard James Duffin (1909 – October 29, 1996) was an American physicist, known for his co
- Richard Schwartz (mathematician)Richard Evan Schwartz (born August 11, 1966) is an American mathematician notable for his
- Richard von MisesRichard Martin Edler von Mises (German: ; 19 April 1883 – 14 July 1953) was an Austrian sc
- Riemann curvature tensorTensor field in Riemannian geometry
- Riemann–Roch theoremRelation between genus, degree, and dimension of function spaces over surfaces
- Rigid origamiRigid origami is a branch of origami which is concerned with folding structures using flat
- Rigidity (mathematics)Property of mathematical objects
- Ring homomorphismStructure-preserving function between two rings
- Ring of integersAlgebraic construction
- Ring of symmetric functionsIn algebra and in particular in algebraic combinatorics, the ring of symmetric functions i
- Ringed toposIn mathematics, a ringed topos is a generalization of a ringed space; that is, the notion
- Robert ConnellyRobert Connelly (born July 15, 1942) is a mathematician specializing in discrete geometry
- Robert CoveyouAmerican mathematician
- Robert MacPherson (mathematician)Robert Duncan MacPherson (born May 25, 1944) is an American mathematician at the Institute
- Robert OssermanAmerican mathematician
- Robert W. BrooksAmerican mathematician (1952–2002)
- Roberto Conti (mathematician)Italian mathematician (1923–2006)
- Root datumIn mathematical group theory, the root datum of a connected split reductive algebraic grou
- Root systemGeometric arrangements of points, foundational to Lie theory
- Rose PeltesohnRose Pauline Peltesohn (16 May 1913 – 21 March 1998) was an Israeli mathematician of Germa
- Row and column spacesVector spaces associated to a matrix
- RP (complexity)In computational complexity theory, randomized polynomial time (RP) is the complexity clas
- Russel E. CaflischAmerican mathematician (born 1954)