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<p>dynamical system described by the ordinary differential equation (ODE)</p>

<p>A local bifurcation occurs at  if the <a href="page.php?w=Jacobian_matrix_and_determinant">Jacobian</a> matrix  has an <a href="page.php?w=Eigenvalue%2C_eigenvector_and_eigenspace">eigenvalue</a> with zero real part. If the eigenvalue is equal to zero, the bifurcation is a steady-state bifurcation, but if the eigenvalue is non-zero but purely imaginary, this is a <a href="page.php?w=Hopf_bifurcation">Hopf bifurcation</a>.</p>

<p>For discrete dynamical systems, consider</p><p>
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