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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Graduate Principal ideals of rings without unity
- Wingeer
- · Replies 5 ·
Graduate Power Series Expansion of Dedekind Eta Function: How to Expand η(τ)/η(3τ)?
- twoforone
- · Replies 2 ·
Undergrad Linear algebra textbook with proofs for A-Level Math
- Mépris
- · Replies 14 ·
Graduate Riemann zeta functionpole question?
- lostcauses10x
- · Replies 2 ·
Graduate Trivial zeros in the Riemann Zeta function
- msariols
- · Replies 2 ·
Undergrad A problem on linear transformation and standard basis
- visharad
- · Replies 7 ·
High School Is a number preceding infinity, finite?
- King
- · Replies 26 ·
Undergrad Standard books for self-studying optimization theory
- X89codered89X
- · Replies 2 ·
Graduate Showing the map G/H → X defined by f(gH) = gx is bijective
- demonelite123
- · Replies 2 ·
Undergrad Confusion regarding the basis of A and the basis of Range of A
- smithnya
- · Replies 1 ·
Graduate Problem involving eigenvalues/vectors
- jacks0123
- · Replies 9 ·
Undergrad Why Does This Adjacency Matrix Theorem Work?
- physicsguy101
- · Replies 2 ·
High School Best method to solve simultaneous equations?
- rollcast
- · Replies 7 ·
Graduate Determining groups not sure how to prove it.
- lostNfound
- · Replies 4 ·
Undergrad For which L(s) will be these vectors linearly dependent?
- gotmejerry
- · Replies 3 ·
Undergrad How to get the derivative of this convex quadratic
- justin_huang
- · Replies 3 ·
Graduate Simple Q about direct product representation of a group
- AxiomOfChoice
- · Replies 1 ·
Graduate Gauss elimination algorithm for matrix inversion
- TheDestroyer
- · Replies 7 ·
Undergrad Why is the complex inner product defined as A*B and not AB*?
- unchained1978
- · Replies 3 ·
Graduate Finding eigenvector for eigenvalue 1+i from row-reduced matrix
- SeannyBoi71
- · Replies 5 ·
Graduate Projection onto the kernel of a matrix
- tmatrix
- · Replies 2 ·
Undergrad Online tools for Gaussian elimination / LU decomposition ?
- XodoX
- · Replies 4 ·
Undergrad Maximum of arithmetic operations needed
- posuchmex
- · Replies 1 ·
Undergrad Linear Algebra: Solve B^(-1) with A, C, D
- sam0617
- · Replies 2 ·
High School Can Two Planes Meet at a Point Instead of a Line?
- tut_einstein
- · Replies 3 ·
Graduate Test if 2 transformations produce equivalent relations to a reference
- nitroamos
- · Replies 1 ·
High School Is 0.9 Recurring Truly Considered Equal to 1 in Mathematics?
- curleymatsuma
- · Replies 34 ·
Graduate Positive Set in an Ordered Integral Domain
- alexfloo
- · Replies 1 ·
Graduate Help clarifying proofs about finite groups and cyclic groups
- jbarrera
- · Replies 7 ·
Graduate What Are the Clopen Subsets in a Metric Space?
- IniquiTrance
- · Replies 3 ·
Undergrad Why do complex numbers let us find all nth roots?
- tut_einstein
- · Replies 7 ·
Graduate Does φ(N) Form a Normal Subgroup in G' When φ is a Homomorphism?
- ThatPinkSock
- · Replies 2 ·
Undergrad What can I use to solve a general matrix?
- VortexLattice
- · Replies 3 ·
Undergrad How do I find helpful resources for understanding linear algebra concepts?
- smithnya
- · Replies 1 ·
Graduate Fibonacci ratio convergence to golden ratio bound
- billy2908
- · Replies 3 ·
Graduate How to handle an ill-conditioned matrix?
- soikez
- · Replies 1 ·
Graduate Question on the trace of two matrices
- evlyn
- · Replies 16 ·
Graduate Can You Prove This Inequality for Positive Real Numbers a,b,c,d with Sum of 1?
- wnvl
- · Replies 1 ·
Undergrad Four Coplanar Points: Solving for Unknown X
- Safy91
- · Replies 5 ·
Graduate The square of a formal laurent series
- R.P.F.
- · Replies 1 ·
Graduate Infinite product of positive terms equaling a negative value
- WACG
- · Replies 7 ·
Graduate Addition and multiplication in Z/nZ
- autre
- · Replies 1 ·
Graduate Pythagorean Triangles with one side equal s and hypothenuse equal 2 s+1
- RamaWolf
- · Replies 7 ·
Graduate Is sqrt(n!) Irrational for n > 2?
- billy2908
- · Replies 7 ·
Graduate EQUALITY OF ROW AND COLUMN RANK (O'Neil's proof) Is there smt wrong?
- alexyflemming
- · Replies 1 ·
Undergrad This was from google's interview question.
- adhiluhur
- · Replies 9 ·
Graduate Mod(prime) is a field mod(non-prime) is not
- General_Sax
- · Replies 3 ·
Graduate Showing that a certain subgroup is the kernal of a homomorphism
- demonelite123
- · Replies 9 ·
Graduate Thought - Euclidean Space R^(-n)
- mm2013
- · Replies 7 ·
Graduate Is the Group Law * Associative and Commutative in Algebraic Structures?
- naoufelabs
- · Replies 9 ·
Undergrad Solving Modular Arithmetic Equations in Z5
- VitaminC
- · Replies 6 ·
Graduate Interesting number theory-related problem.
- Mathguy15
- · Replies 10 ·
Undergrad Can the u part of the matrix be written differently in state space analysis?
- phiby
- · Replies 2 ·
Undergrad Having Trouble Adapting Discrete Mathematics
- Monster92
- · Replies 1 ·
Graduate Degree of Rational Function Field
- jose80
- · Replies 1 ·
Graduate What Are the Applications of Multilinear Maps in Mathematics and Science?
- sponsoredwalk
- · Replies 3 ·
Graduate Why does the Grassmann integral ∫dθ θ equal 1?
- FJ Rolfes
- · Replies 2 ·
Graduate Question on commutativity of operators
- mnb96
- · Replies 2 ·
Undergrad Algebraic intuition vs geometric intuition
- Mathguy15
- · Replies 4 ·
Graduate Algebraic Geometry Question - on ideals of algebraic sets
- slevvio
- · Replies 1 ·
Undergrad Why do irrational numbers result in uneven divisions?
- cloud_sync
- · Replies 59 ·
Graduate Two primes in a Primitive Pythagorean Triangle
- RamaWolf
- · Replies 4 ·
Undergrad Why is the infinity norm defined as the maximum absolute value?
- alecrimi
- · Replies 4 ·
Undergrad Efficient Equation for Counting Even Numbers from 1 to n
- Genericcoder
- · Replies 2 ·
High School Why does adding equations solve a system of equations?
- lustrog
- · Replies 5 ·
Undergrad Unusual usages of linear algebra
- Mihulik
- · Replies 17 ·
Graduate What Are the Key Concepts of Lie Groups in Group Theory?
- teddd
- · Replies 8 ·
Graduate How does Jordan form connect to the kernel of a matrix?
- JamesGoh
- · Replies 1 ·
Graduate Same eigenvalues = same jordan form ?
- JamesGoh
- · Replies 1 ·
High School Converting Numbers from Base to Decimal
- Jkohn
- · Replies 8 ·
Graduate Is There an Isomorphism Between ℤ and ℤ[x]?
- Bachelier
- · Replies 3 ·
Graduate Axis of rotation and plane of reflection in orthogonal matrices with determinant -1
- JamesGoh
- · Replies 1 ·
Graduate Finding matrices that span orthogonal complements with formulas
- jostpuur
- · Replies 3 ·
Graduate What Changes in Representation Theory Over Non-Complex Fields?
- Hello Kitty
- · Replies 4 ·
Graduate Help What is wrong with this proof?
- mathew3
- · Replies 44 ·
Undergrad Linear independence and decompostion
- MotoPayton
- · Replies 2 ·
Graduate Vector with minimal angle to a set of vectors
- Obelus
- · Replies 2 ·
Graduate Infinite groups with elements of finite order
- eddyski3
- · Replies 10 ·
Undergrad Is ℤ/3ℤ a subring of ℤ?
- Bachelier
- · Replies 2 ·
Graduate If a subring of ℤ contains 13 and 1000, must it equal ℤ?
- Bachelier
- · Replies 3 ·
Graduate Proof of Homomorphism Property: Field Condition Implies 1-1 or Zero Mapping
- Bachelier
- · Replies 8 ·
Graduate Prove ||x-y|| = ||x|| ||y|| ||x̄ - ȳ|| where ū = u/||u||²
- Kuma
- · Replies 5 ·
Graduate How to generalize determinant and cross product
- jostpuur
- · Replies 16 ·
Graduate Why are normal subgroups fundamental in group theory?
- AdrianZ
- · Replies 10 ·
Graduate Programming details on the computation of the Riemann zeta function using Aribas
- RamaWolf
- · Replies 4 ·
Graduate How to calculate the Riemann zeta function for complex arguments
- hawaiifiver
- · Replies 8 ·
High School Remainder when sum of fifth powers 1^5 + 2^5 + ... + 100^5 is divided by 4
- physics kiddy
- · Replies 6 ·
Graduate Adjacency matrices - real matrices or tables?
- toofle
- · Replies 3 ·
Graduate Proving S(m*(2n-1)+n)=0 mod S(n)
- ramsey2879
- · Replies 1 ·
Undergrad Are there different types of zero in mathematics?
- Naty1
- · Replies 7 ·
Undergrad Inverse of a matrix + determinant
- JamesGoh
- · Replies 3 ·
Graduate A little renewed Disproof of Riemann hypothesis
- choe
- · Replies 19 ·
Graduate Fundamental Theorem of Abelian Groups
- mehtamonica
- · Replies 7 ·
Undergrad Linear Algebra Question on Calculating Current
- whatisphysics
- · Replies 2 ·
Graduate Definition of induced representation
- kof9595995
- · Replies 1 ·
Graduate Characteristic polynomial coefficients
- JamesGoh
- · Replies 1 ·
Undergrad Matrix Multiplication: Calculating (AB)C and A(BC) Using the Formula
- P-Jay1
- · Replies 1 ·
Graduate Is Tab∂cf = Tac∂bf Valid in Tensor Notation?
- PhyPsy
- · Replies 1 ·
Graduate Solution for Arithmetics in Z: m2+1\equiv0[5]
- naoufelabs
- · Replies 3 ·
Graduate Divide by Matrix: Is it Possible?
- spamiam
- · Replies 2 ·