User:Richard Pinch: Difference between revisions

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I am a professional mathematician, with research interests in number theory and combinatorics: my D.Phil (Oxford 1983) was in the arithmetic of elliptic curves and I have published about two dozen research papers and one book (Communication Theory).  I held research and teaching posts at the University of Cambridge for 15 years and am now a civil servant.  My Erdos number is 3.
I am a professional mathematician, with research interests in number theory and combinatorics: my D.Phil (Oxford 1983) was in the arithmetic of elliptic curves and I have published about two dozen research papers and one book (Communication Theory).  I held research and teaching posts at the University of Cambridge for 15 years and am now a civil servant.  My Erdos number is 3.
==Taking a break==
I'll look in from time to time.


==Working links==
==Working links==
* [[User:Richard Pinch/References|A list of references]]
* [[User:Richard Pinch/References|A list of references]]
* [[User:Richard Pinch/Redlinks|Links I want to fill in]]
* [[User:Richard Pinch/Redlinks|Links I want to fill in]]
* [[User:Richard Pinch/Stubs|Articles I want to expand]]
* [[User:Richard Pinch/Articles|Articles I have started]]
* [[User:Richard Pinch/Articles|Articles I have started]]
* [[User:Richard Pinch/Redirects|Redirects with potential]]
* [[User:Richard Pinch/Redirects|Redirects with potential]]
==Articles I have started==
{{rpl|Absorbing element}}
{{rpl|Albert algebra}}
{{rpl|Alternant code}}
{{rpl|Altitude (geometry)}}
{{rpl|Arithmetic function}}
{{rpl|Artin-Schreier polynomial‎}}
{{rpl|Associativity}}
{{rpl|Automorphism}}
{{rpl|Average order of an arithmetic function‎}}
{{rpl|Baer-Specker group‎}}
{{rpl|Barycentre}}
{{rpl|Barycentric coordinates‎}}
{{rpl|Binary operation}}
{{rpl|Brun-Titchmarsh theorem}}
{{rpl|Cameron-Erdos conjecture‎}}
{{rpl|Cartesian product}}
{{rpl|Centraliser}}
{{rpl|Centre of a group}}
{{rpl|Cevian line}}
{{rpl|Chain rule}}
{{rpl|Characteristic function}}
{{rpl|Characteristic polynomial}}
{{rpl|Circumcentre}}
{{rpl|Cofactor (mathematics)}}
{{rpl|Commutativity}}
{{rpl|Commutator}}
{{rpl|Compactness axioms}}
{{rpl|Complement (linear algebra)‎}}
{{rpl|Complement (set theory)‎}}
{{rpl|Complex conjugation}}
{{rpl|Conductor of an abelian variety}}
{{rpl|Congruent triangles}}
{{rpl|Conjugation (group theory)‎}}
{{rpl|Connected space}}
{{rpl|Content (algebra)}}
{{rpl|Continuant (mathematics)}}
{{rpl|Coprime}}
{{rpl|Cubic reciprocity}}
{{rpl|Cyclic group}}
{{rpl|Cyclic polygon}}
{{rpl|Cyclotomic field}}
{{rpl|Cyclotomic polynomial}}
{{rpl|Delta form}}
{{rpl|Diagonal matrix}}
{{rpl|Different ideal}}
{{rpl|Dirichlet series}}
{{rpl|Discrete metric}}
{{rpl|Disjoint union}}
{{rpl|Distributivity}}
{{rpl|Division (arithmetic)}}
{{rpl|Divisor (algebraic geometry)}}
{{rpl|Dowker space}}
{{rpl|Empty set}}
{{rpl|Equivalence relation}}
{{rpl|Erdos-Fuchs theorem}}
{{rpl|Essential subgroup}}
{{rpl|Exact sequence}}
{{rpl|Field automorphism}}
{{rpl|Filter (mathematics)‎}}
{{rpl|Frattini subgroup}}
{{rpl|Free group}}
{{rpl|Frobenius map}}
{{rpl|Function composition}}
{{rpl|Functional equation}}
{{rpl|Genus field}}
{{rpl|Group action}}
{{rpl|Group homomorphism}}
{{rpl|Group isomorphism problem}}
{{rpl|Hall polynomial}}
{{rpl|Hall-Littlewood polynomial‎}}
{{rpl|Hutchinson operator}}
{{rpl|Idempotence}}
{{rpl|Idempotent element}}
{{rpl|Identity element}}
{{rpl|Identity function}}
{{rpl|Identity matrix}}
{{rpl|Incentre}}
{{rpl|Injective function}}
{{rpl|Intersection}}
{{rpl|Isolated singularity}}
{{rpl|Jordan's totient function}}
{{rpl|Justesen code}}
{{rpl|KANT}}
{{rpl|Kernel of a function}}
{{rpl|Krull dimension}}
{{rpl|Lambda function}}
{{rpl|Lattice (geometry)}}
{{rpl|Limit point}}
{{rpl|Littlewood polynomial}}
{{rpl|Manin obstruction}}
{{rpl|Median algebra}}
{{rpl|Minimal polynomial}}
{{rpl|Möbius function‎}}
{{rpl|Modulus (algebraic number theory)‎}}
{{rpl|Monogenic field}}
{{rpl|Monoid}}
{{rpl|Monotonic function}}
{{rpl|Moore determinant}}
{{rpl|Morita conjectures}}
{{rpl|Neighbourhood}}
{{rpl|Nine-point centre}}
{{rpl|Normal number}}
{{rpl|Normal order of an arithmetic function‎}}
{{rpl|Number of divisors function}}
{{rpl|Number Theory Foundation}}
{{rpl|Order (group theory)}}
{{rpl|Order (relation)}}
{{rpl|Ordered field}}
{{rpl|Ordered pair}}
{{rpl|p-adic metric}}
{{rpl|Pedal triangle}}
{{rpl|Pole (complex analysis)}}
{{rpl|Power set}}
{{rpl|Preparata code}}
{{rpl|Primitive root}}
{{rpl|Quadratic field}}
{{rpl|Quadratic residue}}
{{rpl|Removable singularity}}
{{rpl|Residual property (mathematics)}}
{{rpl|Resolution (algebra)}}
{{rpl|Rigid motion}}
{{rpl|Root of unity}}
{{rpl|S-unit}}
{{rpl|Selberg sieve}}
{{rpl|Semigroup}}
{{rpl|Separation axioms}}
{{rpl|Series (group theory)}}
{{rpl|Singleton set}}
{{rpl|Srivastava code}}
{{rpl|Stably free module}}
{{rpl|Subgroup}}
{{rpl|Sum-of-divisors function}}
{{rpl|Surjective function}}
{{rpl|Sylow subgroup}}
{{rpl|Symmetric difference}}
{{rpl|Szpiro's conjecture}}
{{rpl|Tau function}}
{{rpl|Theta function}}
{{rpl|Totient function}}
{{rpl|Turan sieve}}
{{rpl|Tutte matrix}}
{{rpl|Zero matrix}}
==Redirects that might turn into articles==
I have created various redirects which may deserve their own articles.
* [[Adjugate matrix]]
* [[Antichain]]
* [[Artin's conjecture for primitive roots‎]]
* [[Artin-Schreier theorem]]
* [[Ascending chain condition]]
* [[Atom (order)]]
* [[Basis (topology)]]
* [[Boolean lattice]]
* [[Cayley-Hamilton theorem]]
* [[Characteristic of a field‎]]
* [[Chief series]]
* [[Codomain]]
* [[Commutative monoid]]
* [[Complemented lattice]]
* [[Complete lattice]]
* [[Composition series]]
* [[Connected component]]
* [[Connectedness]]
* [[Coset]]
* [[Countably compact space]]
* [[Cyclic quadrilateral]]
* [[Derived group]]
* [[Derived set]]
* [[Descending chain condition]]
* [[Diagonalizable matrix]]
* [[Dilworth's theorem]]
* [[Discrete topology]]
* [[Distributive lattice]]
* [[Dirichlet convolution]]
* [[Effective divisor]]
* [[Equivalence class]]
* [[Exponent (group theory)‎]]
* [[Filter base]]
* [[First countable space]]
* [[Formal Dirichlet series]]
* [[Formal power series]]
* [[Formally real field]]
* [[Free monoid]]
* [[Free semigroup]]
* [[Fully invariant subgroup]]
* [[Group isomorphism]]
* [[Hausdorff space]]
* [[Idempotent matrix]]
* [[Index of a subgroup]]
* [[Indiscrete topology]]
* [[Infimum]]
* [[Inner automorphism]]
* [[Interval (order)]]
* [[Join]]
* [[Jordan-Dedekind chain condition‎]]
* [[Lagrange's Theorem]]
* [[Lattice (order)]]
* [[Lindelof space]]
* [[Matrix addition]]
* [[Matrix minor]]
* [[Matrix multiplication]]
* [[Meet]]
* [[Mertens conjecture]]
* [[Metacompact space]]
* [[Möbius inversion formula]]
* [[Modular lattice]]
* [[Multiplicative function]]
* [[Normal series]]
* [[Normal space]]
* [[Operator associativity]]
* [[Orthocentre]]
* [[Orthocompact space]]
* [[Orthogonal matrix]]
* [[Paracompact space]]
* [[Path-connected space]]
* [[Perfect set]]
* [[Power associativity‎]]
* [[Projective dimension]]
* [[Ptolemy's theorem]]
* [[Quotient semigroup]]
* [[Ray class group]]
* [[Regular space]]
* [[Second countable space]]
* [[Separable space]]
* [[Sequentially compact space]]
* [[Sigma-compact space]]
* [[Square matrix]]
* [[Sub-basis (topology)]]
* [[Subnormal series]]
* [[Supremum]]
* [[Symmetric matrix]]
* [[Totally disconnected space]]
* [[Totally multiplicative function]]
* [[Ultrafilter]]
* [[Uniform base]]





Latest revision as of 04:35, 22 November 2023


The account of this former contributor was not re-activated after the server upgrade of March 2022.


I am a professional mathematician, with research interests in number theory and combinatorics: my D.Phil (Oxford 1983) was in the arithmetic of elliptic curves and I have published about two dozen research papers and one book (Communication Theory). I held research and teaching posts at the University of Cambridge for 15 years and am now a civil servant. My Erdos number is 3.

Taking a break

I'll look in from time to time.

Working links