426 results for elliptic

arxiv.org/abs/1510.06790v7

On the Kato problem and extensions for degenerate elliptic operators

We study the Kato problem for degenerate divergence form operators. This was begun by Cruz-Uribe and Rios who proved that given an operator $L_w=-w^{-1}{\rm div}(A\nabla)$, where $w\in A_2$ and $A$ is a $w$-degenerate elliptic measure (i.e, $A=w\,B$...

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Are planets actually moving in elliptical orbits around the Sun or do ...

Apr 3, 2017 · Assuming an ideal two body case such as Sun and Earth, both are orbiting around the barycenter in two elliptical orbits. These two orbits are similar in geometry and scaled proportional to …

arxiv.org/abs/1004.4962v1

Galois lines for normal elliptic space curves, II

For each linearly normal elliptic curve $C$ in $\mathbb P^3$, we determine Galois lines and their arrangement. The results are as follows: the curve $C$ has just six $V_4$-lines and in case $j(C)=1$, it has eight $Z_4$-lines in addition. The $V_4$-li...

arxiv.org/abs/1610.07967v1

High rank quadratic twists of pairs of elliptic curves

Given a pair of elliptic curves $E_1$ and $E_2$ over the rational field $\mathbb Q$ whose $j$-invariants are not simultaneously 0 or 1728, Kuwata and Wang proved the existence of infinitely many square-free rationals $d$ such that the $d$-quadratic t...

arxiv.org/abs/1610.05952v3

Conical square functions for degenerate elliptic operators

The aim of this paper is to study the boundedness of different conical square functions that arise naturally from second order divergence form degenerate elliptic operators. More precisely, let $L_w=w^{-1}\,{\rm div}(w\,A\,\nabla)$ where $w\in A_2$ a...

arxiv.org/abs/1804.03331v2

Gravitational major-axis contraction of Mercury's elliptical orbit

The local curvature of the space produced by the Sun causes not only the perihelion precession of Mercury's elliptical orbit, but also the variations of the whole orbit, in comparison with those predicted by the Newtonian theory of gravitation. Calcu...