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 Can u understand my business coursework?
- Aaron792
- · Replies 2 ·
High School Algebraic expressions - simplifying
- Rationalist
- · Replies 3 ·
Undergrad Where did the six come from in the Chinese Remainder Theorem?
- chaotixmonjuish
- · Replies 3 ·
Graduate Interpretation/significance of the eigenvalues for a system?
- illwerral
- · Replies 8 ·
Graduate Factoring a wedge product into vectors? (geometric algebra)
- Peeter
- · Replies 4 ·
Undergrad Understanding Adjacency Matrices for Digraphs?
- Marie11
- · Replies 2 ·
High School Prime spiral: quirk or established area of study?
- Helical
- · Replies 5 ·
Graduate Are A(N-1) and SU(N) equivalent groups?
- gouranja
- · Replies 1 ·
Graduate What's the Order of GL_2(F_5)?
- T-O7
- · Replies 14 ·
Graduate What does irreducible mean for a cyclic subgroup of GL(n,F)?
- Hello Kitty
- · Replies 1 ·
Graduate Divisibility Problem: Fast Algorithm for Large Integers A and B
- mhill
- · Replies 1 ·
Undergrad Find T([3,1]) for Linear Transformation R2 to R3
- radiator
- · Replies 2 ·
Graduate What is the cyclic subgroup order of GL(2,p^n) generated by the given matrix?
- Hello Kitty
- · Replies 5 ·
Undergrad To what number b/w 0 and 4 inclusive
- zazisr
- · Replies 3 ·
Undergrad What is Probabilistic number theory , could we rely on it ?
- mhill
- · Replies 1 ·
High School When Does Matrix Multiplication Not Work?
- j-lee00
- · Replies 2 ·
High School Scalar product of 2B and 3C given vectors B and C
- TA1068
- · Replies 5 ·
Graduate What Are the Idempotents of the Ring Z/100Z?
- chivhone
- · Replies 1 ·
Graduate Unify principles of two formulae
- Twinbee
- · Replies 3 ·
Graduate Find Basis for Ker (T) with S = {1, 0, 1, 0}
- Luke1294
- · Replies 3 ·
Undergrad How do I use Least Square Fitting to Calculate the Best Line of Fit?
- EngNoob
- · Replies 4 ·
High School MIT's linear algebra course by Professor Strang
- zyh
- · Replies 3 ·
Undergrad What is the signed angle between two 2-dimensional vectors?
- daviddoria
- · Replies 12 ·
Graduate Uncovering the Connection Between Rings and Involutions: A Homomorphism Puzzle
- Mechmathian
- · Replies 6 ·
Undergrad But we assumed p and q are mutually prime, a contradiction.
- rohanprabhu
- · Replies 16 ·
Graduate Choose subset of n+1 from 2n set
- xax
- · Replies 7 ·
Graduate Is a Self-adjoint Operator Always Real?
- daudaudaudau
- · Replies 3 ·
Undergrad Entries in every row add to zero (nullspace/determinant question)
- mace2
- · Replies 2 ·
Undergrad Inverse of Matrix Sum Formula: Solving for Upper Triangular Matrices
- Physics_wiz
- · Replies 1 ·
Undergrad Are a complex equation and its conjugate linearly dependent?
- emanaly
- · Replies 3 ·
Graduate [((n-1)/2)]^2 = -(-1)^[(n-1)/2] (mod n)
- xax
- · Replies 7 ·
Undergrad Equation of plane containing point (0,1,3) and line
- sk_88
- · Replies 2 ·
Graduate Is the adjoint image T*(Y*) closed in X* when T(X) is closed?
- jostpuur
- · Replies 3 ·
Graduate Vector/Matrix Differentiation: Where to Put the Transpose?
- daviddoria
- · Replies 4 ·
Graduate Is R a Finite-Dimensional Vector Space Over Q?
- matheinste
- · Replies 33 ·
High School Why is e_i the standard notation for unit vectors?
- Peeter
- · Replies 16 ·
Undergrad Can (n-1) be Divisible by n for Any Natural Number n ≥ 5 and Not Prime?
- xax
- · Replies 7 ·
Graduate Proving GL(n) Center Diagonal Matrices
- Jim Kata
- · Replies 1 ·
Undergrad How Does Matrix Symmetry Affect Row and Column Ranks?
- Physicsissuef
- · Replies 26 ·
Undergrad Solve Extraneous Roots: Why Do They Arise?
- bacon
- · Replies 2 ·
Graduate Exponential bound for Euler's zeta function?
- Loren Booda
- · Replies 3 ·
Graduate Moore penrose inverse expressed as geometric product?
- Peeter
- · Replies 3 ·
Graduate Geometrical algebra's: simple equation
- CompuChip
- · Replies 3 ·
Undergrad Reducing Number of Multiplications in a Loop
- rwinston
- · Replies 5 ·
Undergrad Is there a formula for gcd(a+h,b+k) given gcd(a,b) and gcd(h,k)?
- harshant
- · Replies 2 ·
Graduate Lebesgue measure and scale freedom
- my_wan
- · Replies 21 ·
Graduate Germain Primes and the Homogenous Integer Function Q(x,y)
- vantheman
- · Replies 4 ·
Undergrad Why Might My Palindrome Calculation Be Incorrect?
- rwinston
- · Replies 1 ·
Graduate Sum of two prime ideals is prime ?
- sihag
- · Replies 6 ·
High School How Can I Perform Quadratic Regression on an HP 50g Calculator?
- stephen92
- · Replies 1 ·
Graduate Understanding Quotient Vector Space: Collapsing to Zero
- matheinste
- · Replies 2 ·
Graduate Can a 4x4 matrix with two vanishing eigenvalues have a square root?
- PRB147
- · Replies 4 ·
High School When are a and x whole integers in 3(x²)=a²?
- W3pcq
- · Replies 1 ·
Undergrad How to solve second-order matrix diffrential equation?
- jahandideh
- · Replies 6 ·
Graduate What is the English translation for Einsatzunghomöomorphismus in German?
- trambolin
- · Replies 2 ·
Undergrad Linear Algebra: Solving Systems of Equations with Wedge Product?
- jdstokes
- · Replies 3 ·
Graduate Is the Intersection of Even and Odd Function Subspaces Only the Zero Function?
- vdgreat
- · Replies 6 ·
Graduate Proving the Sum of a Series using Fourier Series Technique
- maddogtheman
- · Replies 2 ·
High School Can You Count the Zeros Between Two Numbers?
- whatever84
- · Replies 4 ·
Graduate How to Show that PL is a Matrix in Vector Projection?
- John Smith
- · Replies 1 ·
Undergrad Prove Commutation Property for 2x2 Matrices D
- vdgreat
- · Replies 9 ·
Graduate X in dA => x isolated or strict limit (Topological space)
- NickAlger
- · Replies 11 ·
Graduate Prove Sum of Series Property: a_n = Ba_{n-1} - a_{n-2}
- ramsey2879
- · Replies 6 ·
Graduate Completeness of irreducible representations
- alexgs
- · Replies 9 ·
Undergrad Is Elementary Number Theory More Challenging Than Calculus and Linear Algebra?
- [Aqua]
- · Replies 1 ·
Graduate How Can You Prove the Commutative Property of Vector Addition in Rn Spaces?
- Shenlong08
- · Replies 4 ·
Undergrad Why Do Monotonous Functions Have Only One Unique Solution?
- Physicsissuef
- · Replies 38 ·
Graduate Reduction of a blade pseudovector quotient?
- Peeter
- · Replies 2 ·
Graduate Prove that phi(a^n - 1) is divisible by n
- xax
- · Replies 7 ·
Graduate Prove that a^t = -1 (mod p^k) for
- xax
- · Replies 4 ·
Graduate Linear Programming Theory, Optimality Criterion Question
- ayas
- · Replies 1 ·
Graduate Infinite Sum Question (q-harmonic?)
- re8
- · Replies 5 ·
Graduate Projection Operators on Vector Spaces: Clarifying Mistakes
- HenryGomes
- · Replies 2 ·
Graduate If the union of two subspaces is a subspace, must one contain the other?
- ambuj123
- · Replies 5 ·
Graduate Proving 2Z is Non-Isomorphic to 3Z
- sihag
- · Replies 2 ·
Undergrad Spanning an m-dimensional space requires at least m vectors
- Ella087
- · Replies 8 ·
Undergrad Solving a system with Cramer's rule
- qdv
- · Replies 3 ·
Undergrad Recommendation for textbook on number theory
- dpackard
- · Replies 10 ·
Undergrad Questions about twin prime numbers
- al-mahed
- · Replies 17 ·
Undergrad Overview of Matrix Invertibility: How Can We Prove That a Matrix is Invertible?
- sihag
- · Replies 2 ·
Graduate Does Closure of Y Guarantee Continuity of Projection in Norm Space X?
- jostpuur
- · Replies 6 ·
High School What relationship do 5 and 6 have that no other pair of distinct positive integers share?
- Surreal Ike
- · Replies 29 ·
Undergrad How Can You Maximize the Product of Integers Given a Fixed Sum?
- mhill
- · Replies 1 ·
Undergrad Proof of n(n-1)/2 as the Number of 2-Subsets in an n-Set
- Ella087
- · Replies 4 ·
Undergrad De Morgan's law for three sets: (A ∩ B)' = A' ∪ B'?
- leilei
- · Replies 2 ·
High School Help with arithmetic tables
- *Jas*
- · Replies 7 ·
Graduate Doran/Lasenby. Commutator and symmetric products?
- Peeter
- · Replies 5 ·
Undergrad Finding Eigenvalues for a Matrix with One Real Eigenvalue of Multiplicity 2
- jmcasall
- · Replies 6 ·
Graduate Artin's Conjecture on Primitive Roots: Perfect Squares
- setkeroppi
- · Replies 2 ·
Undergrad What is the relationship between subspaces V and W if V is contained in W?
- leilei
- · Replies 2 ·
Undergrad Reverse Partition grouping problem
- ramsey2879
- · Replies 2 ·
Graduate Problem with transformations in Rijndael's finite field
- qxcdz
- · Replies 7 ·
Undergrad Calculating Hamming Distances in 5-Bit Binary Sets
- asdf1234
- · Replies 9 ·
Graduate Finding powers of a square matrix
- sylar
- · Replies 3 ·
Graduate Direct Image Sheaf at Generic Point of an Irreducible Component
- LorenzoMath
- · Replies 11 ·
High School Finding a Parabola using three points, no equations
- DarlingAly
- · Replies 2 ·
Graduate How Do Elements of Direct Product Groups Commute in Particle Physics?
- foobar
- · Replies 2 ·
Graduate How can diagonal matrices help solve eigenvalue problems?
- soulflyfgm
- · Replies 5 ·
Undergrad Are All Bases Sets of Orthogonal Vectors?
- pr0me7heu2
- · Replies 2 ·
Undergrad Modular Algorithm for Solving Equations with Unknowns Modulo 100
- booney1983
- · Replies 6 ·