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🔍 athanasios stratikopoulos
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History & Literature Preprint PDF DOI

How to make the Earth orbit the Sun in 1614

Christopher M. Graney · 2019

In 1614 Johann Georg Locher, a student of the Jesuit astronomer Christoph Scheiner, proposed a physical mechanism to explain how the Earth could orbit the sun. An orbit, Locher said, is a perpetual fa…

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Mathematics Preprint PDF DOI

An interpolation problem for the normal bundle of curves of genus $g\ge 2$ and high degree in $\mathbb {P}^r$

E. Ballico · 2014

Let $C\subset \mathbb {P}^n$ be a smooth curve and $N_C$ its normal bundle. $N_C$ satisfies strong interpolation if for all integers $s>0$ and $\lambda _i\in \{0,1,\dots ,n-1\}$, $1\le i \le s$, there…

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Mathematics Preprint PDF DOI

On the structure of the Galois group of the Abelian closure of a number field

Georges Gras · 2012

Following a paper by Athanasios Angelakis and Peter Stevenhagen on the determination of imaginary quadratic fields having the same absolute Abelian Galois group A, we study this property for arbitrary…

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AI & Data Science Peer-Reviewed PDF DOI

Leptin concentrations in maternal serum and amniotic fluid during the second trimenon: differential relation to fetal gender and maternal morphometry.

 · 1970

Leptin, a hormone produced by adipocytes, provides information on the availability of fat stores to the hypothalamus and acts as an afferent satiety signal regulating appetite and energy expenditure i…

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