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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.
High School Is the Sum of Digits Always Nine?
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Graduate A non-trivial infinity of zeroes with real part one-half
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Undergrad A matrix is diagonalizable when algebraic and geometric multiplicities are equal
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Undergrad How Can I Solve This Unique Weight Balancing Problem Using Balanced Ternary?
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Graduate Conjugate Homogeneity for Self-Adjoint Operators: Proof and Explanation
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Graduate Is the sequence finite for different values of u in the logarithmic series?
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Graduate Understanding and Expanding the 2nd Chebyshev Function: Calculation Help
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Graduate Is Legendre's Conjecture on Primes Between n² and (n+1)² Fully Resolved?
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Undergrad A matrix is diagonalizable when algebraic and geometric multiplicities are equal
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Undergrad Is a Matrix Symmetric if Row Space Equals Column Space?
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Graduate Unimodular Matrices: Geometric Interpretation
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High School How Can x*0=0 Be Proven Without Using m(-1)=-m?
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Graduate Question about Gram-Schmidt orthogonalization
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Graduate Basis for the set of all cts fns?
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Undergrad Understanding Pressure Equations in Linear and Abstract Algebra
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Graduate Constructing an irreducible polynomial in Z_{p^(m+1)}
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High School Revisiting Algebra Basics: 4ax + 2ay = 2a(2x + y)
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Undergrad Operation exists that is valid for a group limited to the natural
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Graduate Index Conventions in Linear Algebra & Apps: David Griffel
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Graduate Adjoint transformation (inverse)
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Graduate What are the two definitions of gamma function and how are they related?
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Graduate Are Eigenvalues of a Non-Hermitian Matrix Real?
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Graduate Can the Gamma Function Summation Be Simplified for 0<Re(s)<1?
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Undergrad Proving Subspace of a Matrix in R2
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Graduate Proof Question: Invariance of U and U⊥ under T and T∗ for V subspace"
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Undergrad What is the significance of zero in mathematics and philosophy?
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High School Are half of all natural numbers even?
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High School Point or Vector? What's the difference?
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High School Fastest way you have found to multiply two numbers in your head?
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Graduate Vandermonde Matrix, Polynomial Interpolation & Orthogonal Basis
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Graduate Another question about projections.
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Undergrad How could I change an equation to look the same as it did with inverted axes?
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Graduate X,Y and Z operators of some algebra
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Undergrad Is the Solution Set of Ax=b a Subspace of R^n?
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Graduate Can Recursive Flip-Trees Be Defined More Elegantly?
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Graduate What Are the Properties of an Endomorphism f That Satisfies x*f(x)=k?
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Graduate Subgroup wth morphism into itself
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Undergrad Matrix, in which there is a column of 0's or a row of 0's
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Graduate Sequel for my proof for Riemann's hypothesis
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Graduate Accurate Proof and varification for Riemann Hypothesis
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Graduate Einstein Notation: Xj to Xi Transformation Equations
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Graduate Convolution Inverse: Family of Functions Explained
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Graduate Why Does This Polylogarithm Identity Have No Restrictions?
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Graduate Question about orthogonal projections.
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Graduate Incomplete gamma function question
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Graduate Ax + b Least Squares Minimization Standard Form
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Graduate (sub)semigroup with an endomorphism
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Undergrad Linear Dependence/Independence
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Graduate What is the formula for this curve?
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Graduate Eigenvalues and Eigenvectors uniquely define a matrix
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Graduate Semigroup partitions and Identity element
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Graduate Equal Coefficients Polynomials
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Graduate Common roots of multivariate polynomials
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Graduate What are the practical applications and uses of Lie Algebras?
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Graduate Russian Dolls Matryoshka Approach to Riemann Hypothesis
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Undergrad Are you able to solve this Simple Matrix Challenge?
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Graduate Very clever and difficult number theory puzzle (with generalization)
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Graduate About the linear dependence of linear operators
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Graduate 3 questions about matrix lie groups
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High School Factorizing 2ab - 4ac + bd - 2de | Help Appreciated
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Graduate Are Eigenfunctions of a Hamiltonian on a lattice always Bloch functions?
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Graduate Zeta function and summation convergence
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Undergrad Is there a way to show that sqrt(2)+sqrt(3)+sqrt(5) is algebraic over Q?
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Graduate What is the Definition of a Trace and Can it Prove the Riemann Hypothesis?
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High School Proof that (-a)(-b)=ab: Is It Logical?
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Graduate Condition on minors to be Positive Semidefinite (PSD)
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High School Is a*b equal to LCM(a,b)*HCF(a,b)? Help me understand the proof.
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Undergrad Is it possable for Cramer's rule to fail?
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Undergrad Checking commutativity property with addition table
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Graduate About the invariance of similar linear operators and their minimal polynomial
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Graduate What is the name for f(ab)=f(b)f(a)?
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Undergrad M^5v given that M = [3 2 4 2 0 2 4 2 3]
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Graduate Spectral interpretation of Primes
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Undergrad Understanding Inner Products in Linear Algebra
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Undergrad Online Textbooks on Linear Algebra and Calculus
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Undergrad Is set of points (p,q) countable?
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Graduate Proving R is a Field: Finitely Generated R-Modules
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Graduate Can Induction Prove the Laws of Exponents for a Group?
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Graduate Longest repeated sequence in the prime counting function
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Graduate The (i,j) component of a Kronecker product?
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Undergrad Inverse of Upper Triangular Matrix
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High School Methods for solving simultaneous equations
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Graduate Can You Reformulate a Riccati Equation for Standard Solver Compatibility?
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Graduate The Riemann Hypothesis for High School Students
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Graduate Understanding the Minimal Polynomial: Clarifying Confusion on p(T)(v)
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Undergrad Eigenvalues and Eigenvectors of 3x3 matricies
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Undergrad Is Non-Singular the Same as Isomorphic in Linear Algebra?
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Graduate Riemann proof effect on factoring composites
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Undergrad Geometric intepretation of matrices
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Graduate Plane lattice proof of Leibniz series
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Undergrad What could be the possible algorithm for generating these lines of numbers?
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Graduate Proof for non constant polynomial function
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Undergrad Describe all n such that 3 devides n2^n+1
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Graduate Functions and infinite dimensional vectors
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Graduate Prove 5 is not a member of the sequence
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Undergrad Conjecture on primes (not mine=)
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Undergrad Calculating Coordinates on a Sphere Using Trigonometry
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High School Point on Vector - Learn Maths Basics
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Graduate Collinear vectors over finite fields
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Undergrad Is \sqrt{2}+\sqrt{5} an Algebraic Number?
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