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most citedNon-integrability of the second Painleve equation as a Hamiltonian system

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math.CA2022

The reducible double confluent Heun equation and a general symmetric unfolding of the origin

Tsvetana Stoyanova

The reducible double confluent Heun equation (DCHE) is the only DCHE whose general symmetric unfolding leads to a Fuchsian equation. Contrary to general Heun equation the unfolded…