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

Undergrad Solving: Vector Subspaces Question in R3

  • markovchain
  • · Replies 1 ·
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1

Graduate Why is the special orthogonal group considered the rotation group?

  • tensor33
  • · Replies 4 ·
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4

Graduate Is There a Quadratic Equation for Polynomials in Z_n?

  • lol_nl
  • · Replies 1 ·
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1

Graduate What is a Quasi Upper Triangular Matrix?

  • jezza10181
  • · Replies 2 ·
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2

Introducing Inner Product Spaces: Real-World Examples

  • matqkks
  • · Replies 1 ·
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1

Graduate Introducing Inner Product Spaces: Real Impact Examples

  • matqkks
  • · Replies 3 ·
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3

The Significance of Row Space in a Matrix

  • matqkks
  • · Replies 3 ·
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3

Undergrad Can a vector be a linear combination of itself?

  • Klungo
  • · Replies 10 ·
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10

Graduate Relative Prime Gaps: Fast Algorithm for Calc.

  • ppnl
  • · Replies 13 ·
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13

Graduate How to Find c in a Complex Logarithmic Equation?

  • Wiz14
  • · Replies 1 ·
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1

Graduate Conjecture regarding perfect numbers.

  • MathematicalPhysicist
  • · Replies 10 ·
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10

Graduate Question regarding imaginary numbers and euler's formula

  • elvishatcher
  • · Replies 9 ·
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9

Graduate How Can We Understand Reflective Symmetry in a Square?

  • srfriggen
  • · Replies 1 ·
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1

Undergrad Understanding Matrix Row Spaces: Why It Matters

  • matqkks
  • · Replies 2 ·
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2

Graduate One-parameter group of transformations

  • -Alexander-
  • · Replies 1 ·
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1

Graduate Eigenvectors of a symmetric matrix.

  • chocolatefrog
  • · Replies 1 ·
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1

Undergrad Are Non-Singular Column Vectors of X Linearly Independent?

  • IniquiTrance
  • · Replies 5 ·
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5

Graduate What Is the Mathematical Depth Behind Ramanujan's Integral Identity?

  • GoutamTmv
  • · Replies 2 ·
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2

Graduate Question on conditions for commutativity of subgroups

  • mnb96
  • · Replies 2 ·
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2

Undergrad EASY QUESTION solving system of linear inequalities

  • fleazo
  • · Replies 1 ·
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1

Undergrad Are A, B, and A+B Always Coplanar?

  • 1MileCrash
  • · Replies 3 ·
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3

Graduate Can Commutation between Subgroups be Achieved without Assuming Normality?

  • mnb96
  • · Replies 2 ·
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2

Undergrad Solving the Clever Compound Cartoon Puzzle

  • tgm1024
  • · Replies 3 ·
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3

Solving System of Equations: Find # Solutions for Different Values of k

  • Yankel
  • · Replies 5 ·
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5

Graduate Any useful analog to finite differences for matrix products?

  • Stephen Tashi
  • · Replies 5 ·
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5

Graduate What Are Hamel & Schauder Bases and How Do They Relate to Vector Spaces?

  • Rasalhague
  • · Replies 13 ·
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13

Graduate Kronecker product of infinite dimensional matrices

  • yphink
  • · Replies 4 ·
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4

Graduate Homomorphism as a Structure-preserving Map.

  • V0ODO0CH1LD
  • · Replies 22 ·
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22

Graduate Converting Rotation matrix to operate on fractional coordinates

  • rheugle
  • · Replies 4 ·
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4

Undergrad What is the Rank of the Adjugate Matrix?

  • quackdesk
  • · Replies 1 ·
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1

Graduate Can a Non-Linear Map be the Inverse of a Linear Map?

  • PiAreSquared
  • · Replies 8 ·
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8

High School What Is an Efficient Way to Identify Composite Numbers?

  • Iccanui
  • · Replies 6 ·
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6

Graduate For which primes P is the following true?

  • Wiz14
  • · Replies 9 ·
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9

Undergrad Checking if a Graph is Planar - v, e & f

  • kljoki
  • · Replies 2 ·
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2

Undergrad Possible Triplets for (1+1/a)(1+1/b)(1+1/c)=3

  • rattanjot
  • · Replies 5 ·
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5

Solving a Coal Blending Problem with LP

  • Wilmer
  • · Replies 10 ·
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10

Is $f$ a function or a functional?

  • OhMyMarkov
  • · Replies 3 ·
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3

Undergrad Question on Fermat's Last Theorem

  • Wiz14
  • · Replies 4 ·
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4

Graduate Understanding Group Structures: A Scientist's Perspective

  • modnarandom
  • · Replies 7 ·
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7

Undergrad Can someone explain zeros and zeta function for Riemann Hypothesis? (Yr13)

  • 2710
  • · Replies 19 ·
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19

Graduate Isomorphism of P4 and R5 in a given inner product space

  • freddyfish
  • · Replies 3 ·
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3

Undergrad How Does Google Work? Get Answers Here

  • prane
  • · Replies 1 ·
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1

Graduate How does the author determine the elements of order p or 4 in the group?

  • moont14263
  • · Replies 2 ·
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2

Undergrad Understanding the Permitted Use of Double Summation in Math

  • IniquiTrance
  • · Replies 2 ·
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2

High School What is the difference between zero scalar and zero vector?

  • dexterdev
  • · Replies 3 ·
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3

Graduate Quick question about Hermitian operators

  • dEdt
  • · Replies 2 ·
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2

Graduate Abelian groups and exponent of a group

  • moont14263
  • · Replies 3 ·
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3

Graduate Proving/Disproving: Coprimes & (an + bn + cn ) / abc

  • mahmudarif
  • · Replies 2 ·
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2

Undergrad How do I solve a transcendental equation?

  • shourie.j
  • · Replies 2 ·
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2

Graduate Question on definition of Lie groups

  • mnb96
  • · Replies 4 ·
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4

Graduate Question about wiki artical on Quotient Groups

  • Diffy
  • · Replies 7 ·
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7

Undergrad Are there any real life applications of the rank of a matrix? It need

  • matqkks
  • · Replies 3 ·
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3

Matrix Rank: Real-Life Applications & Motivation

  • matqkks
  • · Replies 1 ·
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1

Undergrad How Does a Minimal Polynomial Differ from a Characteristic Polynomial?

  • dexterdev
  • · Replies 2 ·
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2

High School Solving for Data: Formula with OUTPUT Provided

  • vladtess
  • · Replies 3 ·
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3

Graduate Can anyone me to generalize and prove this if it is valid?

  • mahmudarif
  • · Replies 5 ·
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5

Undergrad Can you do the Cross Product Backwards?

  • BigCheese234
  • · Replies 5 ·
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5

High School Algebra - Associativity and Commutativity

  • Luke101
  • · Replies 11 ·
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11

Undergrad Where did this equation come from?

  • your
  • · Replies 1 ·
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1

Graduate Number theory divisibility question

  • Idiotinabox
  • · Replies 2 ·
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2

Graduate Linear Functionals & Inner Products: Is This Theorem True?

  • dEdt
  • · Replies 3 ·
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3

Undergrad Why Use A and B in Partial Fraction Decomposition?

  • Taylor_1989
  • · Replies 2 ·
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2

Undergrad More than one identity element for absolute value?

  • physicsforum7
  • · Replies 8 ·
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8

Undergrad What is eigen value, eigen vector etc and what is their physical significance?

  • dexterdev
  • · Replies 8 ·
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8

Undergrad Determinants of matrices greater than 3x3

  • smize
  • · Replies 6 ·
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6

Undergrad Why Does Cramer's Rule Give Different Determinants for the Same Matrix?

  • epsilonOri
  • · Replies 3 ·
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3

Graduate Interpretation of the determinant of an operator in complex vector space

  • dEdt
  • · Replies 6 ·
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6

Graduate Matrix Derivation: 2x1 A and B with Dimension and dA/dB Calculation

  • tommyhakinen
  • · Replies 5 ·
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5

Undergrad What are some real-life applications of general vector spaces?

  • matqkks
  • · Replies 2 ·
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2

Graduate Find Eigenvalues/Determinant of Infinite Matrix

  • cragar
  • · Replies 3 ·
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3

Graduate Direction of Goldbach Partitions

  • Paul Mackenzie
  • · Replies 2 ·
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2

Undergrad What is the determinant of a matrix?

  • KingKai
  • · Replies 11 ·
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11

Graduate Understanding Vector Spaces in Real Analysis

  • gilabert1985
  • · Replies 5 ·
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5

Covariant and Contravariant Vector

  • andrey21
  • · Replies 4 ·
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4

Undergrad Finding all combination of portions of a number.

  • lucasfeijo
  • · Replies 4 ·
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4

Undergrad Quick question about Linear Transformations from a space to itself

  • Fractal20
  • · Replies 4 ·
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4

Undergrad Which Mathematician's Theorem Linked Prime Numbers to Cryptography?

  • synkk
  • · Replies 4 ·
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4

Showing that Q(sqrt(p)) is in Q adjoined the pth root of unity

  • oblixps
  • · Replies 1 ·
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1

"structure" on the cosets → normal?

  • Swlabr1
  • · Replies 2 ·
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2

Graduate How to find 'self locating digits' in irrational numbers

  • prane
  • · Replies 3 ·
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3

Graduate Must the Fourier transform exist for Dirac delta functions?

  • friend
  • · Replies 6 ·
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6

Show that the abelian groups are isomorphic

  • buckylomax
  • · Replies 1 ·
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1

High School Math Education: Encouraging Mediocrity and the Negative Effects of Algebra

  • zoobyshoe
  • · Replies 105 ·
4
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105

High School What are the applications of permutations of a finite set?

  • dwn5000
  • · Replies 3 ·
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3

Generating a linear equation from the given expression

  • nicodemus1
  • · Replies 5 ·
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5

Linear algebra. Rank. linear independence.

  • caffeinemachine
  • · Replies 1 ·
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1

Graduate Conjecture Regarding rotation of a set by a sequence of rational angles.

  • mehr1methanol
  • · Replies 2 ·
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2

Graduate What is a Module? Polynomials & Vector Spaces

  • marellasunny
  • · Replies 4 ·
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4

Undergrad Linear transformation and matrix transformation

  • Ali Asadullah
  • · Replies 5 ·
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5

Graduate Looking for Properties of Low Discrepancy Sequences.

  • mehr1methanol
  • · Replies 3 ·
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3

Graduate 4th and higher dimension perpendicular

  • Lord_Sidious
  • · Replies 5 ·
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5

Undergrad Finding Inverse from Known Linear System

  • Blue2Sky
  • · Replies 4 ·
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4

Graduate Linearly independent eigen vectors

  • Jonnyb302
  • · Replies 3 ·
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3

Graduate Is Q-P Symmetric Positive-Definite?

  • arunakkin
  • · Replies 3 ·
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3
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2

Solve *-Algebra Problem: $\sigma(\lambda{e}-x)=\lambda-\sigma(x)$

  • Cairo
  • · Replies 1 ·
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1

Undergrad Is this a complete test to show that a matrix is orthogonal?

  • tamtam402
  • · Replies 4 ·
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4

Graduate Negative determinants when calculating eigenvectors?

  • tamtam402
  • · Replies 13 ·
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13

Undergrad Decomposition of a Rotation Matrix

  • QuickLoris
  • · Replies 7 ·
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7

How Do You Identify Scalar Homomorphisms in a Matrix Algebra?

  • Cairo
  • · Replies 9 ·
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9