由三个连续整数的平方、立方和四次数生成的数值半群
Numerical semigroups generated by squares, cubes and quartics of three consecutive integers
摘要:
给出了数值半群R_n^k=<(n-1)^k,n^k,(n+1)^k>,k= 2,3,4,n>2的生成集的极小关系的多项式表示.我们还找到了这类半群的Hilbert级数H(z,R_n^k)的合次数的多项式表示,它们的Frobenius数F(R_n^k)和亏格G(R_n^k)。
英文摘要:
We derive the polynomial representations for minimal relations of generating set of numerical semigroups R_n^k=<(n-1)^k,n^k,(n+1)^k>, k=2,3,4, n>2. We find also the polynomial representations for degrees of syzygies in the Hilbert series H(z,R_n^k) of these semigroups, their Frobenius numbers F(R_n^k) and genera G(R_n^k).
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