Titlebook: Geometric Methods in Physics XXXV; Workshop and Summer Piotr Kielanowski,Anatol Odzijewicz,Emma Previato Conference proceedings 2018 Sprin

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Commentary

In Memory of S. Twareque Ali,We remember a valued colleague and dear friend, S. Twareque Ali, who passed away unexpectedly in January 2016.

先兆

Ornament

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OMIT

濃縮

Formal Normal Forms for Germs of Vector Fields with Quadratic Leading Part. The Rational First IntegWe complete classification of germs of plane vector fields with quadratic leading part initiated in [1]. There were two cases completely analyzed, a simplest one and a most complex one. Here we study the remaining cases. In the proofs we use a new method introduced in the work [2] concerning the Bogdanov–Takens singularity.

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連鎖,連串

Weighted Szeg? KernelsIn this paper we define a weighted Szeg? kernel by putting a measurable almost everywhere positive function μ under the inner product integral and try to answer which conditions it must satisfy in order to give a ‘good generalization’ of a classical case.