| Description |
A tutorial account of families of 2x2 matrices labelled by several parameters will concentrate on the neighbourhood of degeneracies. The emphasis will be on the differences between hermitian and nonhermitian matrices. Physical phenomena where such degeneracies play a crucial role will be described. |
Joint ICTP/SISSA Statistical Physics seminar:
Series of lectures on: 'Singularities and asymptotics'
Fifth lecture
"Two by two"
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