Cohen-Eisenstein级数与Shimura提升的一个推广

来源 :中国科学(A辑:数学) | 被引量 : 6次 | 上传用户:haijiehahaha
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引进一类半整权模形式,它们可以看做同余子群Г0(4N),其中N是无平方因子的奇正整数上的Cohen—Eisenstein级数的一个自然推广.应用这些级数,证明了Shimura提升在Eisenstein空间Ek+1/2+(4N,xi)上的限制,给出一个从Ek+1/2+(4N,xi)到E2k(N)的同均.
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