Results 11 to 20 of about 134,696 (267)

Rational points on quartics [PDF]

open access: yesDuke Mathematical Journal, 2000
32 pages ...
Harris, Joe, Tschinkel, Yuri
openaire   +4 more sources

Rational Singularities and Rational Points [PDF]

open access: yesPure and Applied Mathematics Quarterly, 2008
Comment: 12 ...
Blickle, Manuel, Esnault, Hélène
openaire   +2 more sources

Primitive Points in Rational Polygons [PDF]

open access: yesCanadian Mathematical Bulletin, 2020
AbstractLet ${\mathcal{A}}$ be a star-shaped polygon in the plane, with rational vertices, containing the origin. The number of primitive lattice points in the dilate $t{\mathcal{A}}$ is asymptotically $\frac{6}{\unicode[STIX]{x1D70B}^{2}}\text{Area}(t{\mathcal{A}})$ as $t\rightarrow \infty$. We show that the error term is both $\unicode[STIX]{x1D6FA}_{
Bárány, I   +3 more
openaire   +3 more sources

Game interrupted: The rationality of considering the future [PDF]

open access: yesJudgment and Decision Making, 2013
The “problem of points”, introduced by Paccioli in 1494 and solved by Pascal and Fermat 160 years later, inspired the modern concept of probability. Incidentally, the problem also shows that rational decision-making requires the consideration of future ...
Brandon Almy, Joachim I. Krueger
doaj   +2 more sources

Families of polynomials of every degree with no rational preperiodic points

open access: yesComptes Rendus. Mathématique, 2021
Let $K$ be a number field. Given a polynomial $f(x)\in K[x]$ of degree $d\ge 2$, it is conjectured that the number of preperiodic points of $f$ is bounded by a uniform bound that depends only on $d$ and $[K:\mathbb{Q}]$.
Sadek, Mohammad
doaj   +1 more source

Counting rational points on quadric surfaces

open access: yesDiscrete Analysis, 2018
Counting rational points on quadric surfaces, Discrete Analysis 2018:15, 29 pp. A _quadric hypersurface_ of dimension $D$ is the zero set of a quadratic form $Q$ in $D+2$ variables. If $Q(x_1,\dots,x_{D+2})=0$, then $Q(\lambda x_1,\dots,\lambda x_{D+2})=
Tim Browning, Roger Heath-Brown
doaj   +1 more source

All rational one-loop Einstein-Yang-Mills amplitudes at four points

open access: yesJournal of High Energy Physics, 2018
All four-point mixed gluon-graviton amplitudes in pure Einstein-Yang-Mills theory with at most one state of negative helicity are computed at one-loop order and maximal powers of the gauge coupling, using D-dimensional generalized unitarity.
Dhritiman Nandan   +2 more
doaj   +1 more source

Birational Quadratic Planar Maps with Generalized Complex Rational Representations

open access: yesMathematics, 2023
Complex rational maps have been used to construct birational quadratic maps based on two special syzygies of degree one. Similar to complex rational curves, rational curves over generalized complex numbers have also been constructed by substituting the ...
Xuhui Wang   +4 more
doaj   +1 more source

Cognition and Social Behaviors Related to COVID-19 Among Students in Medical Colleges: A Cross-Sectional Study in Guangdong Province of China

open access: yesFrontiers in Public Health, 2022
BackgroundThe COVID-19 pandemic is a public health emergency of international concern. This study aimed to describe the cognition and social behaviors related to COVID-19 among medical college students in China and to explore the relevant factors that ...
Qiu Zhang   +5 more
doaj   +1 more source

Simultaneous rational periodic points of degree-2 rational maps

open access: yesJournal of Number Theory, 2023
Let $S$ be the collection of quadratic polynomial maps, and degree $2$-rational maps whose automorphism groups are isomorphic to $C_2$ defined over the rational field. Assuming standard conjectures of Poonen and Manes on the period length of a periodic point under the action of a map in $S$, we give a complete description of triples $(f_1,f_2,p)$ such ...
Burcu Barsakçı, Mohammad Sadek
openaire   +4 more sources

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