کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6415595 | 1630677 | 2014 | 19 صفحه PDF | دانلود رایگان |
Let fâQ[x] be a square-free polynomial of degree ⩾3 and m⩾3 be an odd positive integer. Based on our earlier investigations we prove that there exists a function D1âQ(u,v,w) such that the Jacobians of the curvesC1:D1y2=f(x),C2:y2=D1xm+b,C3:y2=D1xm+c, have all positive ranks over Q(u,v,w). Similarly, we prove that there exists a function D2âQ(u,v,w) such that the Jacobians of the curvesC1:D2y2=f(x),C2:y2=D2xm+b,C3:y2=xm+cD2, have all positive ranks over Q(u,v,w). Moreover, if f(x)=xm+a for some aâZâ{0}, we prove the existence of a function D3âQ(u,v,w) such that the Jacobians of the curvesC1:y2=D3xm+a,C2:y2=D3xm+b,C3:y2=xm+cD3, have all positive ranks over Q(u,v,w). We present also some applications of these results. Finally, we present some results concerning the torsion parts of the Jacobians of the superelliptic curves yp=xm(x+a) and yp=xm(aâx)k for a prime p and 0
Journal: Journal of Number Theory - Volume 137, April 2014, Pages 222-240