Linear and Abstract Algebra Forum

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.

Threads

High School One line function to find n mod 4 (n % 4)

  • PrakashPhy
  • · Replies 16 ·
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16

Undergrad Is a Matrix with a Zero Column Invertible?

  • lolimcool
  • · Replies 7 ·
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7

Graduate On the ‘Sub-Additivity’ of Principal Eigenvectors

  • PoomjaiN
  • · Replies 1 ·
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1

Graduate Simultaneous diagonalization while having repeated eigenvalues

  • McLaren Rulez
  • · Replies 6 ·
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6

Undergrad A Measure of How un-prime a Number is?

  • Newtime
  • · Replies 7 ·
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7

Undergrad How to make a vector function from a f(x) function

  • DrummingAtom
  • · Replies 5 ·
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5

Graduate Trivial zeros of Zeta Riemann Function

  • Facktor
  • · Replies 1 ·
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1

High School Proving the Infinity of Prime Numbers: Is There a Method?

  • Flexington
  • · Replies 6 ·
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6

High School Algebra vs Geometry: The Debate of Natural Talent in High School

  • Nikitin
  • · Replies 19 ·
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19

Undergrad Definitions of vector space and subspace

  • elementbrdr
  • · Replies 4 ·
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4

Graduate Real vs. Complex: Understanding the Difference Between su(2) and sl(2) Algebras

  • Lapidus
  • · Replies 2 ·
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2

Graduate Explaining Ultimate Factorial Value in x^n Integer Series

  • ershi
  • · Replies 3 ·
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3

Graduate What is an inner product and how can it be verified for polynomials?

  • bernoli123
  • · Replies 5 ·
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5

Graduate Trasformation of vectors component when changing coordinate system

  • lennyleonard
  • · Replies 10 ·
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10

Undergrad What is the significance of nontrivial solutions in linear algebraic equations?

  • firecool
  • · Replies 2 ·
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2

Undergrad Cramers Rule and unique solutions

  • nick484
  • · Replies 2 ·
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2

Graduate Isomorphism only if it is a linear transformation?

  • McLaren Rulez
  • · Replies 12 ·
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12

Graduate Proving Prime Numbers: The Equation Test for Primality

  • l-1j-cho
  • · Replies 9 ·
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9

Graduate How abusive of notation is it to drop isomorphisms?

  • icantadd
  • · Replies 2 ·
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2

Graduate A proposed Hamiltonian operator for Riemann Hypothesis

  • zetafunction
  • · Replies 32 ·
2
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32

Graduate Partitioning into Isomorphism Classes: Exam Q&A

  • Zorba
  • · Replies 3 ·
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3

Undergrad Who wrote these Linear Algebra Notes -Thomas?

  • Stephen Tashi
  • · Replies 3 ·
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3

Graduate Is Abstract Algebra the Key to Unlocking Mathematical Concepts?

  • dalcde
  • · Replies 4 ·
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4

Graduate What are the prerequisites for studying Lie theory and which books should I use?

  • Saussy
  • · Replies 1 ·
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1

Graduate How Do You Use Burnside’s Lemma for Dihedral Group (3) Colorings?

  • Jay121
  • · Replies 5 ·
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5

Undergrad How can the Extended Euclidean Algorithm be simplified for faster computation?

  • SirEllwood
  • · Replies 1 ·
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1

Graduate What is the Value of the Norm |x|_p in P-adic Analysis?

  • zetafunction
  • · Replies 3 ·
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3

Undergrad Convert Axis Angle to 4x4 homogeneous matrix?

  • sarah22
  • · Replies 1 ·
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1

Undergrad Help Me Solve Matrix: Show B†A† = C†

  • theacerf1
  • · Replies 5 ·
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5

Undergrad Eisenstein's Criterion question.

  • Omukara
  • · Replies 3 ·
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3

Graduate Linar Codes and cacluating the cosets

  • Rubik
  • · Replies 4 ·
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4

Graduate Understanding the Meaning of (e1^e2)\cdote3 in Geometric Algebra

  • JakeD
  • · Replies 4 ·
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4

Undergrad I am still confused how to prove that a set is a basis other than

  • elabed haidar
  • · Replies 5 ·
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5

Graduate Restriction of a Linear Transformation

  • dward1996
  • · Replies 2 ·
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2

High School Could any one tell me the meaning and the use of matrix?

  • majg123
  • · Replies 2 ·
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2

Derivative of SVD V and U matrices

  • saulg
  • · Replies 2 ·
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2

Undergrad Can someone recommend me a 2nd year linear algebra textbook?

  • BingoGod
  • · Replies 2 ·
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2

Graduate Sylow's Theorem (normal subgroups)

  • Omukara
  • · Replies 2 ·
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2

Undergrad What is the nullity of a zero matrix?

  • SprucerMoose
  • · Replies 2 ·
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2

Graduate What Happens When the V Matrix is Zero in SVD?

  • SELFMADE
  • · Replies 5 ·
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5

Undergrad Linear Dependence of Matrix Vectors

  • zplot
  • · Replies 5 ·
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5

Undergrad Applied Algebra: Examples & Interesting Uses

  • Skrew
  • · Replies 3 ·
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3

Graduate Order Formula Under Second Isomorphism Theorem: Does it Hold?

  • quasar987
  • · Replies 3 ·
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3

Undergrad Check Linear Dependence/Independence of Vectors Without Calculator

  • aliaze1
  • · Replies 1 ·
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1

Undergrad Does the Determinant of a Square Matrix Have a Physical Meaning?

  • Garvit Goel
  • · Replies 1 ·
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1

Undergrad Does a Zero Eigenvalue Imply a Non-Invertible Matrix?

  • aliaze1
  • · Replies 4 ·
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4

Graduate Integrate Matrix: Can Matrices Have Antiderivatives?

  • daudaudaudau
  • · Replies 4 ·
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4

Graduate What are the properties of central derivations in Lie algebras?

  • Pivych
  • · Replies 1 ·
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1

Graduate Diagonalizability dependent on nullity and inner product?

  • meboxley
  • · Replies 3 ·
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3

Graduate Solve Unique Decomposition Problem: Linear Algebra Vectors & Scalars

  • arshavin
  • · Replies 1 ·
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1

Graduate Difference Tables: Finding Polynomial & Exponential Functions

  • Nimz
  • · Replies 10 ·
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10

Graduate Diagonalization of complex symmetric matrices

  • petergreat
  • · Replies 6 ·
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6

Undergrad Solving a set of quadratic equations

  • biomedicalhat
  • · Replies 20 ·
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20

High School Solving Rational Operations Questions

  • ber8
  • · Replies 4 ·
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4

Graduate Are the definitions of vector in Linear Algebra and physics compatible?

  • MManuel Abad
  • · Replies 4 ·
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4

Graduate Musical scale in magnetic field vibrations theory101

  • word21
  • · Replies 1 ·
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1

Undergrad Solving a Matrix System: a^2 - 1, a, b

  • lolimcool
  • · Replies 6 ·
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6

Undergrad How is it called this function ?

  • zetafunction
  • · Replies 4 ·
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4

Graduate Trace formula in noncommutative geometry and the Riemann hypothesis

  • crowlogic
  • · Replies 4 ·
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4

High School How to Write Out a 2 x 3 Matrix in Linear Algebra?

  • lolimcool
  • · Replies 7 ·
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7

Graduate Free finitely generated module has finite rank?

  • quasar987
  • · Replies 1 ·
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1
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8

Graduate Orthogonality theorem proof method question

  • SELFMADE
  • · Replies 1 ·
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1

Graduate Finding Generators for a Group G when Generators for Imh and Kerh are Known

  • Bacle
  • · Replies 1 ·
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1

Undergrad Matrix HELP! - Finding Matrices for AM = -MA

  • theacerf1
  • · Replies 2 ·
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2

Graduate Anybody here who could explain to me in the simplest terms what is so

  • Lapidus
  • · Replies 1 ·
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1

Graduate Solving Quaternion Confusion for 3D Orientation

  • SGGSJi
  • · Replies 3 ·
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3

Undergrad HELP Detrivative matrix/system of equations

  • theacerf1
  • · Replies 3 ·
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3

Undergrad How Can I Best Prepare for a Proof-Based Linear Algebra Course?

  • randomperson8
  • · Replies 3 ·
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3

Graduate Dirichlet eta approximate functional equation

  • Simpel
  • · Replies 2 ·
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2

Graduate Trying to understand Galois theory book explanation

  • jostpuur
  • · Replies 6 ·
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6

Undergrad Find Closed-Form Expression for Summation of n^2

  • mnb96
  • · Replies 5 ·
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5

Graduate Finding Infinite Units in \mathbb{Q}(\sqrt{21}) Using Continued Fractions

  • math_grl
  • · Replies 4 ·
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4

Graduate Hermitian Matrix: Real & Imaginary Parts

  • EngWiPy
  • · Replies 4 ·
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4

Undergrad How Are Cosets Related to Normal Subgroups?

  • walwaldoggy
  • · Replies 1 ·
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1

Undergrad Basis of vector spaces over fields

  • magicarpet512
  • · Replies 4 ·
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4

Undergrad Number of ways to choose N integers that sum up to X

  • mnb96
  • · Replies 2 ·
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2

Graduate Question on a particular collection of sets

  • turiya
  • · Replies 5 ·
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5

Undergrad Integer factorization given enough primes

  • soandos
  • · Replies 8 ·
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8

Graduate Can Quaternions Be Generalized Beyond Four Dimensions?

  • lpetrich
  • · Replies 11 ·
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11

Undergrad Who First Utilized Rigorous Proofs in Mathematics?

  • MatheusMkalo
  • · Replies 4 ·
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4

Graduate Clifford Algebras: Finding Matrix Representations Cl(0,n)

  • sjhanjee
  • · Replies 2 ·
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2

Graduate Hermitian operators without considering them as Matrices

  • Master J
  • · Replies 1 ·
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1

Undergrad Products of disjoint cycles. Explanation please.

  • tamintl
  • · Replies 5 ·
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5

Graduate Pattern to indexes of deletions in a seive.

  • Stephen Tashi
  • · Replies 2 ·
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2

Graduate Expressing matricies as vectors

  • SprucerMoose
  • · Replies 7 ·
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7

Graduate Proving extrema using taylor series and Hessian Matrix

  • dispiriton
  • · Replies 4 ·
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4

Undergrad When we say that two algebraic expressions, [tex]f(x_1,x_2,\cdots

  • dalcde
  • · Replies 4 ·
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4

Graduate Matrix equation - numeric solving

  • Anthus
  • · Replies 2 ·
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2

Graduate Garrity's Formula: Ordering Covariant Alternating Tensors

  • Rasalhague
  • · Replies 1 ·
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1

Graduate Proving the Even Rank of Skew Symmetric Matrices: Induction and Other Methods

  • bernoli123
  • · Replies 1 ·
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1

Graduate Jordan Normal Form physical applications

  • Maybe_Memorie
  • · Replies 2 ·
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2

Graduate Countable Sets: Cantor's Theorem & Galileo's Paradox

  • Hippasos
  • · Replies 1 ·
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1

Graduate Is a Matrix Zero if Its Inner Product with All Vector Combinations Equals Zero?

  • bernoli123
  • · Replies 2 ·
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2

Undergrad Rank of AB: How nxn Matrices A & B Determine Rank

  • bernoli123
  • · Replies 2 ·
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2

Graduate How can the existence of the tensor product be proven in Federer's construction?

  • turiya
  • · Replies 2 ·
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2

Graduate Subgroup Order in Groups of Divisible Orders: Proof or Counterexamples?

  • arshavin
  • · Replies 1 ·
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1

Graduate Groups and orthogonal matrices question

  • vr88
  • · Replies 7 ·
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7

Graduate Show that if all the row sums of a matrix A belong to C (nxm) are

  • bernoli123
  • · Replies 2 ·
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2

Graduate Linearly dependent numbers over the rationals

  • kyryk
  • · Replies 2 ·
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2