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New posts in perturbation-theory
Can we approximate a.e. invertible matrices with everywhere invertible matrices in $L^2$ sense?
real-analysis
measure-theory
determinant
lp-spaces
perturbation-theory
Reference: Continuity of Eigenvectors
linear-algebra
reference-request
eigenvalues-eigenvectors
perturbation-theory
Perturbative solution to $x^3+x-1=0$
sequences-and-series
recurrence-relations
roots
perturbation-theory
Melnikov's method, homoclinic orbits, and bifurcation values
nonlinear-system
perturbation-theory
nonlinear-analysis
bifurcation
global-analysis
Boundary layer problem
calculus
ordinary-differential-equations
asymptotics
approximation
perturbation-theory
How to solve an ODE with $y^{-1}$ term
ordinary-differential-equations
mathematical-physics
perturbation-theory
Perturbation method to solve $\epsilon x^3=x+\epsilon$
asymptotics
perturbation-theory
Inverse of symmetric positive definite perturbation of symmetric positive definite matrix
linear-algebra
matrices
inequality
symmetric-matrices
perturbation-theory
How to find the critical point for this Coulomb field
physics
vector-fields
perturbation-theory
electromagnetism
Matrix function converges, how about the eigenvalues?
linear-algebra
matrices
convergence-divergence
eigenvalues-eigenvectors
perturbation-theory
How to perturb nonzero elements to get nonzero elements
real-analysis
perturbation-theory
Series expansion of the determinant for a matrix near the identity
linear-algebra
polynomials
determinant
approximation-theory
perturbation-theory
Characterizing (stationary) points by the number of valleys one can descent into
multivariable-calculus
reference-request
perturbation-theory
non-convex-optimization
stationary-point
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