Novikov同调，跳跃位点和Massey乘积
Novikov homology, jump loci and Massey products
摘要：
设X是有限CW-复形，记其基本群为G.设R是G的一个n维复表示。X的第一上同调群的任何元素A都具有复系数，引起表示R的指数变形，这可以被认为是表示空间中的曲线。我们表明，上同调的X与当地的系数对应的泛点，这条曲线是可计算的谱序列从上同调的X与R-扭曲系数。我们用Massey乘积计算谱序列的微分。证明了当X是Kaehler流形且表示R是半单时，谱序列退化.如果A是一个实上同调类，则可以将扭诺维科夫同调（诺维科夫环上的模）与三元组（X，R，A）联系起来。我们证明了在上述局部系统中系数X的扭曲Novikov贝蒂数等于X的贝蒂数.我们研究了这些数对A的依赖性，并证明了它们在第一上同调群中有限个整超平面的补空间中是常数。
英文摘要：
Let X be a finite CW-complex, denote its fundamental group by G. Let R be an n-dimensional complex repesentation of G. Any element A of the first cohomology group of X with complex coefficients gives rise to the exponential deformation of the representation R, which can be considered as a curve in the space of representations. We show that the cohomology of X with local coefficients corresponding to the generic point of this curve is computable from a spectral sequence starting from the cohomology of X with R-twisted coefficients. We compute the differentials of the spectral sequence in terms of Massey products. We show that the spectral sequence degenerates in case when X is a Kaehler manifold, and the representation R is semi-simple. If A is a real cohomology class, one associates to the triple (X,R,A) the twisted Novikov homology (a module over the Novikov ring). We show that the twisted Novikov Betti numbers equal the Betti numbers of X with coefficients in the above local system. We investigate the dependance of these numbers on A and prove that they are constant in the complement to a finite number of integral hyperplanes in the first cohomology group.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
