Join experts in discussing linear and abstract algebra topics. This includes vector spaces and linear transformations. Also groups and other algebraic structures along with Number Theory.
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Undergrad Euler Circuits and Vertices of Even Degree: Proof and Counter-Proof
- MathNerd
- · Replies 2 ·
Undergrad Is |a| a Factor of |p0| in a General Polynomial of Degree n?
- josephcollins
- · Replies 5 ·
Undergrad How Do You Find a Basis for the Nullspace When the First Column Is All Zeroes?
- xenogizmo
- · Replies 2 ·
Graduate What is the cocycle condition in deRham cohomology?
- lethe
- · Replies 21 ·
Undergrad Why is sin(2*pi/7) a Non-Constructible Number?
- keiop3
- · Replies 2 ·
High School Perpendicular bisector of line through (2,3) and (0,6)
- Przybysz
- · Replies 4 ·
Graduate Quaternions And Complex Numbers
- Kambiz_Veshgini
- · Replies 2 ·
Graduate Ring, field, injection, surjection, bijection,
- gvk
- · Replies 2 ·
Undergrad Best Books on Modern Algebra: Popular to Undergraduate
- gvk
- · Replies 6 ·
Undergrad How to solve Pell's equation using Alpertron's online calculator
- mrdex
- · Replies 10 ·
Undergrad How to Code a Vandermonde Matrix Inverse in Java?
- Parth Dave
- · Replies 3 ·
Undergrad I wont to learn the logic behind a determinant
- paul-martin
- · Replies 4 ·
Graduate Intersection of disjoint SETS is empty
- Oxymoron
- · Replies 5 ·
High School Calculating Vector Magnitudes by Breaking Down Components
- SMS
- · Replies 5 ·
Undergrad Best introductory book to senior algebra
- Mark
- · Replies 4 ·
High School Solving for isotope percent abundance using a linear system
- Whitebread
- · Replies 5 ·
Undergrad Splitting a Matrix with Choleski Method: A Simple Example
- niko2000
- · Replies 2 ·
Undergrad How to determine the base of a Number given a problem?
- dk702
- · Replies 3 ·
Undergrad Splitting a Square Matrix into Lower/Upper Triangular Matrices
- niko2000
- · Replies 8 ·
Graduate Is pi plus e algebraic?
- gravenewworld
- · Replies 4 ·
Undergrad What is the ratio of singular to non-singular matrices?
- Ad Infinitum NAU
- · Replies 10 ·
Undergrad Are These Two Equations Linearly Independent?
- turin
- · Replies 7 ·
Undergrad Forming an orthonormal basis from two vectors using Gram-Schmidt
- graphic7
- · Replies 4 ·
Undergrad Ideas on what this transformation is doing?
- graphic7
- · Replies 7 ·
Graduate How Can I Generate Two 1024 Bit Prime Numbers Using the AKS Primality Test?
- Anzas
- · Replies 12 ·
Undergrad What is the root between -3 and -2 for the equation y^3 - 3y + 4 = 0?
- scoutfai
- · Replies 3 ·
Graduate The 3D equivalent to Quaternion?
- Aidman
- · Replies 3 ·
Undergrad Best Introductory Abstract Algebra Books for Aspiring Number Theorists?
- Paul
- · Replies 5 ·
Graduate Lethe asked for volunteers (rep theory)
- marcus
- · Replies 21 ·
Graduate How Many Distinct Islands Can Exist in an nxn Grid with Multiple Colors?
- TenaliRaman
- · Replies 2 ·
Undergrad Linear algebra book and other questions
- galois427
- · Replies 3 ·
Undergrad Proving divisibility when p divides ab but not a
- Ed Quanta
- · Replies 9 ·
Undergrad Solve this Math Problem: Find the Last Two/Three Digits of 3^3^3^3
- ilml
- · Replies 5 ·
Undergrad Terms for Reaching 10^57 in a Series?
- kurious
- · Replies 3 ·
Graduate What are Some Challenging Number Theory Problems?
- ukamle
- · Replies 8 ·
Undergrad Solve Difficult Math Equation - SuperSamuraiStar
- Poweranimals
- · Replies 6 ·
Undergrad Solve Complicated Partial Fractions Questions
- DavioSenBoo
- · Replies 9 ·
Undergrad Difference between a field and a ring
- Saint Medici
- · Replies 7 ·
Number Theory ebooks: Free Fundamental Downloads
- Omid
- · Replies 5 ·
Undergrad Finding Polynomials with Specific Properties: How Do I Do That?
- Mathman23
- · Replies 8 ·
Undergrad What Are Alternative Applications of Linear Systems in Physics?
- juan avellaneda
- · Replies 2 ·
Graduate The 36-officers problem and finite fields
- marlon
- · Replies 3 ·
Graduate Do prime quadruplets become rarer as numbers grow?
- mathman
- · Replies 3 ·
Graduate Monotone convergence theory
- jmazurek
- · Replies 2 ·
Graduate 3D graphics: finding optimal view of a scene with constraints
- Polverone
- · Replies 3 ·
Undergrad Looking for a good abstract book
- AndyCiep
- · Replies 7 ·
High School I proving if a + a = 0 then a = 0
- jmazurek
- · Replies 2 ·
Graduate Finding riccati solution of A*X+A'*X+X*W*X+Q
- gs
- · Replies 6 ·
Undergrad How Can You Prove the Divisibility of 2x + 3y and 9x + 5y by 17?
- futb0l
- · Replies 2 ·
Undergrad How many possibilities are there to get 144
- futb0l
- · Replies 5 ·
Undergrad Can the Chinese Remainder Theorem be Used to Solve Systems of Linear Equations?
- juan avellaneda
- · Replies 2 ·
Undergrad Inverse chinese remainder theorem
- juan avellaneda
- · Replies 9 ·
Graduate Proving gcd(a,n)=(a-1,n)=1 and its implications on mod calculations
- 1+1=1
- · Replies 5 ·
Undergrad Are My Congruence Calculations Correct?
- 1+1=1
- · Replies 16 ·
7-million digit prime found in 14 days
- Monique
- · Replies 11 ·
Graduate No same factor theory inference by hey.like
- hey.like
- · Replies 2 ·
Undergrad Can You Solve the Real Challenge?
- no genius
- · Replies 3 ·
Graduate Does the Prime Factorial Conjecture Hold True for All Primes?
- PFanalog57
- · Replies 3 ·
Graduate The Poincare Conjecture *Kinda long*
- SeveredNebula223
- · Replies 3 ·
Undergrad Reduced residue system for powers of 3 mod 7
- 1+1=1
- · Replies 16 ·
High School Is there a relationship between these numbers from the Phi function?
- Lokolo
- · Replies 4 ·
Graduate Square matrix where the coefficients of the diagonal are 1
- ario
- · Replies 2 ·
Undergrad Modular Math Problem: What Is the Largest n?
- Gokul43201
- · Replies 7 ·
Graduate Can Any Integral Weight Up to 121 Ounces Be Measured with Five Specific Weights?
- nocheesie
- · Replies 3 ·
High School Least Possible Sum of Recipricols of Two Positive Ints = 9
- Itachi
- · Replies 6 ·
What Are the Most Fascinating Aspects of Purely Theoretical Mathematics?
- Shahil
- · Replies 8 ·
Graduate Trailing zeros in 1100! and three algebra proofs
- 1+1=1
- · Replies 8 ·
Graduate Are All Even Perfect Numbers Also Triangular Numbers?
- 1+1=1
- · Replies 3 ·
Undergrad Modulo and congruencies in class
- 1+1=1
- · Replies 2 ·
Graduate Three number theory proofs: divisibility by sums, GCD property, and powers
- 1+1=1
- · Replies 5 ·
Undergrad Proving properties of the floor function
- 1+1=1
- · Replies 4 ·
Undergrad Prove to me that the pythagorean triples
- 1+1=1
- · Replies 11 ·
Undergrad Does Vector Projection Depend on the Magnitude of Both Vectors?
- Zorodius
- · Replies 4 ·
Undergrad Can the GCD and LCM of [a,b] be proven to equal [ac,bc] with c>0?
- 1+1=1
- · Replies 9 ·
Graduate What is the smallest possible positive real number?
- Jack Martinelli
- · Replies 16 ·
Graduate Is the Product of Primes Significant in Number Theory?
- Loren Booda
- · Replies 38 ·
Undergrad How Do Addition and Multiplication Tables Work in Base -5?
- 1+1=1
- · Replies 5 ·
High School Proving the quadratic formula by completing the square
- princesscharming26
- · Replies 4 ·
Undergrad Validate 10|z: 8 Cases to Consider
- 1+1=1
- · Replies 6 ·
High School Is There a Contradiction in the Brain Teaser with Positive Integers x and y?
- 1+1=1
- · Replies 2 ·
Graduate Solve Modular Math Problem: A,B→C
- Gokul43201
- · Replies 7 ·
Undergrad Is there yet a mystery about partitions?
- billy_boy_999
- · Replies 2 ·
Graduate Is the number of twin primes really infinite?
- maverick280857
- · Replies 6 ·
High School Showing that x=2k+1 and y=9k+4 are relatively prime
- 1+1=1
- · Replies 3 ·
Graduate An identity involving Mertens function
- MathNerd
- · Replies 2 ·
Graduate What is the value of this infinite product?
- quddusaliquddus
- · Replies 13 ·
Graduate Fractional Series which approach the square roots of prime numbers.
- duren99109
- · Replies 2 ·
Undergrad Do elements of R³ with first component 0 form a vector space?
- profuse007
- · Replies 12 ·
Graduate Looking for Online Document on SO(N)
- Alamino
- · Replies 2 ·
Undergrad Determinant = volume using rows.
- Damned charming :)
- · Replies 2 ·
Undergrad Laplace Transform - How was it created?
- Vargas
- · Replies 2 ·
Graduate Can f(n) equal f(x) in the sum of digits equation?
- dapet
- · Replies 5 ·
Undergrad Proving numbers with repeating digit blocks are rational
- e(ho0n3
- · Replies 7 ·
Undergrad Compress 3D Objects Into 2 Dimensions?
- PFanalog57
- · Replies 7 ·
Graduate Solving Abstract Algebra Problem: 3 Elements of {p,p+q,pq, p^q,q^p}
- lhuyvn
- · Replies 2 ·
Undergrad Simplex method for function optimization and alternatives
- Pattielli
- · Replies 6 ·
Graduate Is McGinnis's proof of Fermat's Last Theorem valid?
- juan avellaneda
- · Replies 7 ·
Undergrad When is Matrix C Not Invertible?
- dcl
- · Replies 3 ·
Graduate Is There a General Method for Finding Full Reptend Primes?
- imathgeek
- · Replies 13 ·
Graduate Introducing Yourself to Compact and Non-Compact Lie Algebras
- guillom
- · Replies 2 ·