# Wikipedia:Missing science topics/Maths23

This is an archive of a list of "missing" topics in mathematics. Notability should be established independently before articles are created.

## Pyt

1. Pythagorean Extension possibly Pythagorean extension (wikisearch; web; books)
2. Pythagorean Field possibly Pythagorean field (wikisearch; web; books)
3. Pythagorean Fraction possibly Pythagorean fraction (wikisearch; web; books)
4. Pythagorean n-tuple (wikisearch; web; books)
5. Pythagorean numbers (wikisearch; web; books)
6. Pythagorean Square Puzzle possibly Pythagorean square puzzle (wikisearch; web; books)
7. Pythagorean theorem, multi-dimensional possibly Multi-dimensional pythagorean theorem or Multi-dimensional Pythagorean theorem (wikisearch; web; books)
8. Q skew derivation (wikisearch; web; books)
9. Q skew polynomial ring (wikisearch; web; books)
10. Q-Abel's Theorem possibly Q-abel's theorem or Q-Abel's theorem (wikisearch; web; books)
11. Q-Bar possibly Q-bar (wikisearch; web; books)
12. Q-Beta Function possibly Q-beta function (wikisearch; web; books)
13. Q-Binomial Theorem possibly Q-binomial theorem (wikisearch; web; books)
14. Q-Chu-Vandermonde Identity possibly Q-Chu-Vandermonde identity or Q-chu-vandermonde identity (wikisearch; web; books)
15. Q-Cosine possibly Q-cosine (wikisearch; web; books)

## Q-D

1. Q-Development possibly Q-development (wikisearch; web; books)
2. Q-Dimension possibly Q-dimension (wikisearch; web; books)
3. Q-Dougall Sum possibly Q-dougall sum or Q-Dougall sum (wikisearch; web; books)
4. Q-Expansion possibly Q-expansion (wikisearch; web; books)
5. Q-Extension possibly Q-extension (wikisearch; web; books)
6. Q-Function possibly Q-function (wikisearch; web; books)
7. Q-Gauss Identity possibly Q-gauss identity or Q-Gauss identity (wikisearch; web; books)
8. Q-Generalization possibly Q-generalization (wikisearch; web; books)
9. Q-Harmonic Series possibly Q-harmonic series (wikisearch; web; books)
10. Q-Hypergeometric Function possibly Q-hypergeometric function (wikisearch; web; books)
11. Q-Hypergeometric Series possibly Q-hypergeometric series (wikisearch; web; books)
12. Q-Integral possibly Q-integral (wikisearch; web; books)
13. Q-Multinomial Coefficient possibly Q-multinomial coefficient (wikisearch; web; books)
14. Q-Number possibly Q-number (wikisearch; web; books)
15. Q-Pfaff-Saalschütz Sum possibly Q-pfaff-saalschütz sum or Q-Pfaff-Saalschütz sum or Q-Pfaff-saalschüTz sum (wikisearch; web; books)

## Q-P

1. Q-Pi possibly Q-pi (wikisearch; web; books)
2. Q-Polynomial possibly Q-polynomial (wikisearch; web; books)
3. Q-Product possibly Q-product (wikisearch; web; books)
4. Q-q Plot possibly Q-q plot (wikisearch; web; books)
5. Q-Saalschütz Sum possibly Q-saalschütz sum or Q-Saalschütz sum or Q-saalschüTz sum (wikisearch; web; books)
6. Q-Series Identities possibly Q-series identities (wikisearch; web; books)
7. Q-Signature possibly Q-signature (wikisearch; web; books)
8. Q-Sine possibly Q-sine (wikisearch; web; books)
9. Q-Space possibly Q-space (wikisearch; web; books)
10. Q-Vandermonde Sum possibly Q-vandermonde sum or Q-Vandermonde sum (wikisearch; web; books)
11. Q-Whipple Transformation possibly Q-whipple transformation or Q-Whipple transformation (wikisearch; web; books)
12. Q-Zeilberger Algorithm possibly Q-zeilberger algorithm or Q-Zeilberger algorithm (wikisearch; web; books)
13. QBinomial possibly Qbinomial (wikisearch; web; books)
14. QFactorial possibly Qfactorial (wikisearch; web; books)
15. QGamma possibly Qgamma (wikisearch; web; books)

## QPo

1. QPochhammer possibly Qpochhammer (wikisearch; web; books)
2. QRS Constant possibly QRS constant or Qrs constant (wikisearch; web; books)
4. Quadratic algebra (wikisearch; web; books)
5. Quadratic Class Number Constant possibly Quadratic class number constant (wikisearch; web; books)
6. Quadratic closure (wikisearch; web; books)
10. Quadratic error (wikisearch; web; books)
14. Quadratic forms, reduction of possibly Reduction of quadratic forms or Reduction of Quadratic forms (wikisearch; web; books)
15. Quadratic inequality (wikisearch; web; books)

## Qua

1. Quartic Residue possibly Quartic residue (wikisearch; web; books)
2. Quartic Surface possibly Quartic surface (wikisearch; web; books)
3. Quartic Symmetric Graph possibly Quartic symmetric graph (wikisearch; web; books)
4. Quartile Deviation possibly Quartile deviation (wikisearch; web; books)
5. Quartile Range possibly Quartile range (wikisearch; web; books)
6. Quartile Skewness Coefficient possibly Quartile skewness coefficient (wikisearch; web; books)
7. Quartile Variation Coefficient possibly Quartile variation coefficient (wikisearch; web; books)
8. Quartoid (wikisearch; web; books)
9. Quasi-Abelian function possibly Quasi-abelian function (wikisearch; web; books)
10. Quasi-affine scheme (wikisearch; web; books)
11. Quasi-analytic class (wikisearch; web; books)
12. Quasi-averages, method of possibly Method of quasi-averages or Method of Quasi-averages (wikisearch; web; books)
13. Quasi-canonical lifting (wikisearch; web; books)
14. Quasi-classical approximation (wikisearch; web; books)
15. Quasi-compact space (wikisearch; web; books)

## Que

1. Queue with refusals (wikisearch; web; books)
2. Queue with waiting and one service channel (wikisearch; web; books)
3. Queue, multi-channel with waiting possibly Multi-channel with waiting queue or Multi-channel with waiting Queue (wikisearch; web; books)
4. Quillen line-bundle (wikisearch; web; books)
5. Quillen-Lichtenbaum Conjecture possibly Quillen-Lichtenbaum conjecture or Quillen-lichtenbaum conjecture (wikisearch; web; books)
6. Quintic Curve possibly Quintic curve (wikisearch; web; books)
7. Quintic Graph possibly Quintic graph (wikisearch; web; books)
8. Quintic Surface possibly Quintic surface (wikisearch; web; books)
9. Quintic Symmetric Graph possibly Quintic symmetric graph (wikisearch; web; books)
10. Quintuple Product Identity possibly Quintuple product identity (wikisearch; web; books)
11. Quiteprime (wikisearch; web; books)
12. Quota Rule possibly Quota rule (wikisearch; web; books)
13. Quotient Graph possibly Quotient graph (wikisearch; web; books)
14. Quotient mapping (wikisearch; web; books)
15. Quotient norm (wikisearch; web; books)

## Rab

1. Rabin's Compression Theorem possibly Rabin's compression theorem (wikisearch; web; books)
2. Rabinowitsch trick (wikisearch; web; books)
3. Racah 6 (wikisearch; web; books)
4. Racah 6j-Symbol possibly Racah 6j-symbol (wikisearch; web; books)
5. Racah Coefficient possibly Racah coefficient (wikisearch; web; books)
6. Racah Polynomial possibly Racah polynomial (wikisearch; web; books)
7. Racah V-Coefficient possibly Racah v-coefficient or Racah V-coefficient (wikisearch; web; books)
11. Rademacher system (wikisearch; web; books)
14. Radial boundary value (wikisearch; web; books)
15. Radial component of a differential operator (wikisearch; web; books)

7. Radiative transfer theory (wikisearch; web; books)
10. Radical extension (wikisearch; web; books)
11. Radical in a class of semi-groups (wikisearch; web; books)
14. Radical of a group (wikisearch; web; books)
15. Radical theory (wikisearch; web; books)

4. Ramanujan 6-10-8 Identity possibly Ramanujan 6-10-8 identity (wikisearch; web; books)
5. Ramanujan chi-Function possibly Ramanujan chi-function (wikisearch; web; books)
6. Ramanujan Cos/Cosh Identity possibly Ramanujan cos/cosh identity (wikisearch; web; books)
7. Ramanujan f-Function possibly Ramanujan f-function (wikisearch; web; books)
8. Ramanujan function (wikisearch; web; books)
9. Ramanujan g- and G-Functions possibly Ramanujan g- and G-functions or Ramanujan g- and g-functions (wikisearch; web; books)
10. Ramanujan phi-Function possibly Ramanujan phi-function (wikisearch; web; books)
11. Ramanujan Prize possibly Ramanujan prize (wikisearch; web; books)
12. Ramanujan Psi Sum possibly Ramanujan psi sum (wikisearch; web; books)
13. Ramanujan psi-Function possibly Ramanujan psi-function (wikisearch; web; books)
14. Ramanujan sums (wikisearch; web; books)
15. Ramanujan's AGM Continued Fraction possibly Ramanujan's agm continued fraction (wikisearch; web; books)

## Ram

1. Ramphoid Cusp possibly Ramphoid cusp (wikisearch; web; books)
2. Ramus Tree possibly Ramus tree (wikisearch; web; books)
3. Randelbrot Set possibly Randelbrot set (wikisearch; web; books)
4. Random and pseudo-random numbers (wikisearch; web; books)
5. Random Close Packing possibly Random close packing (wikisearch; web; books)
6. Random coding (wikisearch; web; books)
7. Random Composition possibly Random composition (wikisearch; web; books)
8. Random Ellipsoid Packing possibly Random ellipsoid packing (wikisearch; web; books)
9. Random Fibonacci Sequence possibly Random fibonacci sequence or Random Fibonacci sequence (wikisearch; web; books)
10. Random field, generalized possibly Generalized random field or Generalized Random field (wikisearch; web; books)
11. Random field, homogeneous possibly Homogeneous random field or Homogeneous Random field (wikisearch; web; books)
12. Random Normal Deviate possibly Random normal deviate (wikisearch; web; books)
13. Random Partition possibly Random partition (wikisearch; web; books)
14. Random Percolation possibly Random percolation (wikisearch; web; books)
15. Random Polygon possibly Random polygon (wikisearch; web; books)

## Rat

1. Rational and irrational (wikisearch; web; books)
2. Rational Approximation possibly Rational approximation (wikisearch; web; books)
3. Rational Cuboid possibly Rational cuboid (wikisearch; web; books)
4. Rational Distance Problem possibly Rational distance problem (wikisearch; web; books)
5. Rational Distances possibly Rational distances (wikisearch; web; books)
6. Rational Double Point possibly Rational double point (wikisearch; web; books)
7. Rational homotopy theory (wikisearch; web; books)
8. Rational invariant (wikisearch; web; books)
9. Rational normal scroll (wikisearch; web; books)
10. Rational Polynomial possibly Rational polynomial (wikisearch; web; books)
11. Rational Polynomial Function possibly Rational polynomial function (wikisearch; web; books)
13. Rational rank of a group (wikisearch; web; books)
14. Rational Spiral possibly Rational spiral (wikisearch; web; books)
15. Rational Zero Theorem possibly Rational zero theorem (wikisearch; web; books)

## Rat

1. Rationality theorems (wikisearch; web; books)
2. RATS Sequence possibly Rats sequence (wikisearch; web; books)
3. Rauch comparison theorem (wikisearch; web; books)
4. Ravine function (wikisearch; web; books)
5. Ray class field (wikisearch; web; books)
6. Ray class group (wikisearch; web; books)
7. Ray function (wikisearch; web; books)
8. Ray method (wikisearch; web; books)
9. Ray-Knight compactification possibly Ray-knight compactification (wikisearch; web; books)
10. Rayleigh Differential Equation possibly Rayleigh differential equation (wikisearch; web; books)
11. Rayleigh equation (wikisearch; web; books)
12. Rayleigh Function possibly Rayleigh function (wikisearch; web; books)
13. Rayleigh Wave Equation possibly Rayleigh wave equation (wikisearch; web; books)
14. Rayleigh's Formulas possibly Rayleigh's formulas (wikisearch; web; books)
15. Rayleigh's Theorem possibly Rayleigh's theorem (wikisearch; web; books)

## Rea

1. Rearrangement Prime Pair possibly Rearrangement prime pair (wikisearch; web; books)
2. Rearrangement Theorem possibly Rearrangement theorem (wikisearch; web; books)
3. Recamán's Sequence possibly Recamán's sequence (wikisearch; web; books)
4. Recession cone (wikisearch; web; books)
5. Reciprocal Conjugation possibly Reciprocal conjugation (wikisearch; web; books)
6. Reciprocal Curve possibly Reciprocal curve (wikisearch; web; books)
7. Reciprocal equation (wikisearch; web; books)
8. Reciprocal Permutation possibly Reciprocal permutation (wikisearch; web; books)
9. Reciprocal polars (wikisearch; web; books)
10. Reciprocal Polyhedron possibly Reciprocal polyhedron (wikisearch; web; books)
11. Reciprocal Prime Constant possibly Reciprocal prime constant (wikisearch; web; books)
12. Reciprocating Sphere possibly Reciprocating sphere (wikisearch; web; books)
13. Recognition problem (wikisearch; web; books)
14. Recontres Problem possibly Recontres problem (wikisearch; web; books)
15. Record Setting possibly Record setting (wikisearch; web; books)

## Rec

1. Rectangle Squaring possibly Rectangle squaring (wikisearch; web; books)
2. Rectangle Tiling possibly Rectangle tiling (wikisearch; web; books)
3. Rectangular Hyperbola possibly Rectangular hyperbola (wikisearch; web; books)
4. Rectangular Matrix possibly Rectangular matrix (wikisearch; web; books)
5. Rectangular Projection possibly Rectangular projection (wikisearch; web; books)
6. Rectifiable Current possibly Rectifiable current (wikisearch; web; books)
7. Rectification theorem (wikisearch; web; books)
8. Rectifying Latitude possibly Rectifying latitude (wikisearch; web; books)
9. Rectifying Plane possibly Rectifying plane (wikisearch; web; books)
10. Rectilinear Crossing Number possibly Rectilinear crossing number (wikisearch; web; books)
11. Rectilinear Projection possibly Rectilinear projection (wikisearch; web; books)
12. Recurrence in a Markov chain possibly Recurrence in a markov chain (wikisearch; web; books)
13. Recurrence Relation Signature possibly Recurrence relation signature (wikisearch; web; books)
14. Recurrence Sequence possibly Recurrence sequence (wikisearch; web; books)
15. Recurrent events (wikisearch; web; books)

## Red

1. Red Net possibly Red net (wikisearch; web; books)
2. Redheffer Matrix possibly Redheffer matrix (wikisearch; web; books)
3. Reduced Amicable Pair possibly Reduced amicable pair (wikisearch; web; books)
4. Reduced Binary Quadratic Form possibly Reduced binary quadratic form (wikisearch; web; books)
5. Reduced direct product (wikisearch; web; books)
6. Reduced discriminant (wikisearch; web; books)
7. Reduced dual (wikisearch; web; books)
8. Reduced fraction (wikisearch; web; books)
9. Reduced Knot Diagram possibly Reduced knot diagram (wikisearch; web; books)
10. Reduced Latitude possibly Reduced latitude (wikisearch; web; books)
11. Reduced Maxwell-Bloch Equations possibly Reduced maxwell-bloch equations or Reduced Maxwell-Bloch equations (wikisearch; web; books)
12. Reduced norm (wikisearch; web; books)
13. Reduced normal form (wikisearch; web; books)
14. Reduced phase function (wikisearch; web; books)
15. Reduced Root System possibly Reduced root system (wikisearch; web; books)

## Red

1. Reduced system of residues (wikisearch; web; books)
2. Reduced trace (wikisearch; web; books)
3. Reduced word (wikisearch; web; books)
4. Reducibility axiom (wikisearch; web; books)
5. Reducible Crossing possibly Reducible crossing (wikisearch; web; books)
6. Reducible Fraction possibly Reducible fraction (wikisearch; web; books)
7. Reducible linear system (wikisearch; web; books)
8. Reducible Matrix possibly Reducible matrix (wikisearch; web; books)
9. Reducible Riemannian space possibly Reducible riemannian space (wikisearch; web; books)
10. Reducing series (wikisearch; web; books)
11. Reduction Algorithm possibly Reduction algorithm (wikisearch; web; books)
12. Reduction Order possibly Reduction order (wikisearch; web; books)
13. Reduction System possibly Reduction system (wikisearch; web; books)
14. Reduction Theorem possibly Reduction theorem (wikisearch; web; books)
15. Reduction theory (wikisearch; web; books)

## Ref

1. Reflection Property possibly Reflection property (wikisearch; web; books)
2. Reflection Triangle possibly Reflection triangle (wikisearch; web; books)
3. Reflexible (wikisearch; web; books)
4. Reflexible Map possibly Reflexible map (wikisearch; web; books)
5. Reflexive Closure possibly Reflexive closure (wikisearch; web; books)
6. Reflexive Graph possibly Reflexive graph (wikisearch; web; books)
7. Reflexive non-degenerate sesquilinear (wikisearch; web; books)
8. Reflexive Polyhedron possibly Reflexive polyhedron (wikisearch; web; books)
9. Reflexive Reduction possibly Reflexive reduction (wikisearch; web; books)
10. Reflexive subcategory (wikisearch; web; books)
11. Refutable formula (wikisearch; web; books)