Linear and Abstract Algebra Forum

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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.
Graduate Resummation of the Harmonic series
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Undergrad Calculating the Product of a Series
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Graduate What is the true nature of linearity?
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Graduate Homomorphism between commutative rings
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Graduate Question about centralizer and normalizer
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Undergrad How to Perform a Cross Product on Polar Coordinates?
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Graduate Can I Modify Order to Get X=I Matrix?
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Undergrad Why is Linear Algebra Important and How is it Applied?
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Graduate What Are Examples of Non-Abelian p-Groups?
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Graduate What is the connection between L and gcd(k,n) in cyclic subgroups?
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Undergrad Projection matrix onto a subspace
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Graduate Is the Interval [a,b] Sequentially Compact?
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Graduate Equivalence relation in complementary subspace
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High School Is There a Simpler Method to Solve Similar Linear and Quadratic Systems?
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Undergrad Representing a dot product with Sums.
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Undergrad Representing Square Matrices with Constant and Identity Matrix - A Guide
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Undergrad How to Find \vec{b} in a Cross Product Problem?
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Graduate Cauchy-Bunyakovsky-Schwarz inequality
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Graduate What Is the Size of GL_n(Z2)?
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Graduate What do you call this homomorphism?
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Graduate Question regarding sylow subgroups
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Undergrad Questions about matrices and vectors:Why does the dot product of
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Graduate Finding the Smallest Subgroup of A_4 Containing Two Given Even Permutations
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Undergrad Proof of Equilibrium Solution for Algebraic Equation
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Undergrad Proof Vector Spaces: Unique Vector Satisfying "u + 0 = u
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Graduate Solving Polynimals in the ring mod p^r
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Undergrad Put an augmented matrix into RREF format
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Graduate Are a and b in G if ab is in G?
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Graduate Does the Exponential k Term Complicate Proving the Riemann Hypothesis?
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Graduate Solving Congruences and the Relationship between (p^{l-1}) and (p^{l})
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Graduate Can a Non-Self-Adjoint Element Have a Real Spectrum?
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Graduate Making a collection of sets as a group
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Undergrad Linear Transformations: Find Eigenvalues & Eigenvectors
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Graduate Suppose T is a linear map and dim(Im(T))=k
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Undergrad Can the 'Determinant' be Reversed for 2-by-2 Matrices?
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Graduate What is Gilbreath's Conjecture and Who's Researching It?
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Undergrad How are divisibility tests derived?
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Undergrad Need some advice for linear algebra
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Graduate Question about a Theorem in Gallian's Contemporary Abstract Algebra
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Graduate What is the flaw with this proof?
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Graduate Proving Non-Isomorphism: Subgroup and Dihedral Group of Equal Order
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Graduate Understanding Homomorphisms: The Relationship Between A and B
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Undergrad How can changing the value of m affect the percentage p?
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Graduate How to Find the Subgroup of a Quotient Group with a Given Generator?
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Undergrad Synthetic Division: Proving It Works
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Undergrad Can a permutation with non-disjoint cycles still be used to find its order?
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Graduate Understanding Group Representations in Group Theory
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Graduate Learn Lie Groups & Lie Algebras with John Baez
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Graduate Linearly dependent set of vectors?
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Graduate Isomorphism of A, B ∩ C: Techniques
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Graduate Why is a homomorphism the way it is?
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Graduate Counting Subfields in F_p: Algebraic Result?
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Graduate Proving Matrix X rank Decomposition
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Undergrad What is the purpose of the transpose?
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Graduate RQ decomposition from QR decomposition
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Graduate What makes the Riemann Hypothesis so difficult to prove?
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Graduate Proving that f(x) is Not Continuous for All Real Numbers c
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Undergrad Modular Congruences of Integer Squares
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Graduate Matrix Exponentials: A, Eigenvalues, Jordan Form, Fundamental Matrix T
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Undergrad Solving Diophantine Equations: Find Largest Number of Chicken Nuggets
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Undergrad Solve Tennis Score Puzzle: Use Modular Arithmetic
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Graduate Prove Prime p^2+2 is Composite mod 3 #5
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Graduate Difference between R-algebra and R-module (R is a commutative ring)
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Undergrad Rotation of Vector in P: Why Divide by r?
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Graduate Does AB=G Imply AB=BA in Group Theory?
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Graduate Number of distinct base
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Graduate Vector space of the product of two matrices
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Undergrad Color theory:rgb to cmyk detailed mathematical description
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Graduate Real Numbers Vector Space: Countability of Basis
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Graduate Proof of Rational Root Theorem
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Undergrad Practical applications of number theory?
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Undergrad Is the Result of a Cross Product in R^3 a Vector in R^3?
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Graduate Continued fractions and nested radicals
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Graduate Determinant formula in monomials - can it be generalized?
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Graduate Counting cycles in a permutation
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High School How Can You Mentally Factor Numbers Without a Calculator?
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Graduate Group can be determined by how elements multiply with each other
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Graduate Can someone help me understand and evaluate the Riemann zeta function?
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Graduate Recursive formula for zeta function of positive even integers
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Finite Dimensional Vector Spaces - Paul R. Halmos
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Graduate Isomorphic Groups: Same Info Studying 1 or Both
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Undergrad Finding all vectors normal to a given set of vectors
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High School Find Inverse of 2x2 Matrix: Step-by-Step Guide
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Graduate C10 Group, 10th roots unity with complex number multiplication
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Graduate Three conjectures looking for a proof 100Euro reward
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Graduate What is the intuition behind using eigenvectors of AA^T and A^T A in the SVD?
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Graduate Efficient Computation of the Möbius Function
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Graduate Why doesn't this presentation embed?
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Graduate Connes Trace and Its Relation to Riemann Hypothesis: An Overview
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Graduate Odd Determinant: Explaining a Strange Phenomenon
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Graduate Normalizer of Sylow p-subgroup of simple groups A_n
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Graduate Need help proving Order of a formula
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Graduate Why the need for Lagrange's Theorem?
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Undergrad Solving Group G Show: Very Important!
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Undergrad Solution for Polynomial Degree 7: x2=k2-k2x7/2
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Graduate Show G(p) of Order p^t when G is an Abelian Group of Order (p^t)m
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Graduate Quotienting is a generalisation of division
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Undergrad Finding Solutions for a Matrix with Variables: Row Reduction Required?
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Graduate Linear Transformations and Dual Vectors: Understanding Matrix Representations
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Graduate Existence of Singer Cycle in GL(n,q)
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