Abstract
The main objective of this chapter is to introduce the Lyapunov–Schmidt reduction method and show how this reduction can be performed in a way compatible with symmetries.
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Notes
- 1.
L is a Fredholm operator if (i) the kernel \(\mathrm{Ker}\mathcal{L}\) is finite-dimensional, (ii) the range \(\mathrm{Ran}\mathcal{L}\) is closed, and (iii) \(\mathrm{Ran}\mathcal{L}\) has finite codimension in Y. The index of a Fredholm operator \(\mathcal{L}\) is defined to be the integer \(\mathrm{Ind}\mathcal{L} =\dim \mathrm{ Ker}\mathcal{L}-\mathrm{ codim}\mathrm{Ran}\mathcal{L}\).
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Guo, S., Wu, J. (2013). Lyapunov–Schmidt Reduction. In: Bifurcation Theory of Functional Differential Equations. Applied Mathematical Sciences, vol 184. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6992-6_5
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