Deformations of Functions and F‐Manifolds

Deformations of Functions and F‐Manifolds
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函数和 F 流形的变形

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发表时间:
2005
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通讯作者:
I. Gregorio
I. Gregorio
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作者:
I. Gregorio

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我们研究孤立奇点上函数的变形。给出了孤立完全交集奇点和空间曲线上函数的 Milnor 和 Tjurina 数相等性的统一证明。因此,它们的微小变形的基空间被赋予$F$流形的结构,并且我们可以证明V. Goryunov的猜想,即空间曲线上函数的微小展开的临界值通常是变形的基空间上的局部坐标。
We study deformations of functions on isolated singularities. A unified proof of the equality of Milnor and Tjurina numbers for functions on isolated complete intersections singularities and space curves is given. As a consequence, the base space of their miniversal deformations is endowed with the structure of an $F$-manifold, and we can prove a conjecture of V. Goryunov, stating that the critical values of the miniversal unfolding of a function on a space curve are generically local coordinates on the base space of the deformation.