From each equiv- alence class, we can define a reference family having a minimal number of hopping parameters, that can be used to interpolate between different cuprates. In particular, we find that all cuprates lie on a single line in hopping parameter space, and that this tuning allows ...
class DNumber: '''自动微分中的对偶数类,对 +, -, *, /,幂次符号做了重载''' def __init__(self, x, dx): self.val = x self.dval = dx def __repr__(self): '''使用 print(DNumber(1, 2)) 时输出:1 + 2 d''' return f'{self.val} + {self.dval} d' def __add__(self,...
kpkkpk Thread Feb 14, 2014 Tags Squares Replies: 2 Forum:General Math S How to interpret this problem involving dyadic squares and unit disc? The following problem is from the textbook "Real Mathematical Analysis" by Charles Chapman Pugh. Given ##\epsilon > 0##, show that the unit disc ...