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On Abelian Varieties [PDF]

open access: yesNagoya Mathematical Journal, 1953
In a Bourbaki seminary note, La Théorie des Fonctions Thêta, A. Weil has discussed two fundamental theorems of the general theory of Theta functions. The first, due to H. Poincaré, was proved very skilfully in the note by means of harmonic integrals on a torus and the second, due to Frobenius, was treated by the systematic use of the notion of analytic
openaire   +2 more sources

Multiparty Non-Interactive Key Exchange and More From Isogenies on Elliptic Curves

open access: yesJournal of Mathematical Cryptology, 2020
We describe a framework for constructing an efficient non-interactive key exchange (NIKE) protocol for n parties for any n ≥ 2. Our approach is based on the problem of computing isogenies between isogenous elliptic curves, which is believed to be ...
Boneh Dan   +7 more
doaj   +1 more source

Degenerating abelian varieties via log abelian varieties [PDF]

open access: yesAsian Journal of Mathematics, 2018
For any split totally degenerate abelian variety over a complete discrete valuation field, we construct a log abelian variety over the discrete valuation ring extending the given abelian variety. This generalizes the log Tate curve of Kato.
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Abelian varieties over finite fields as basic abelian varieties [PDF]

open access: yesForum Mathematicum, 2016
Abstract In this note we show that any basic abelian variety with additional structures over an arbitrary algebraically closed field of characteristic p > 0
openaire   +3 more sources

New models for some free algebras of small ranks

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
Dimonoids, generalized digroups and doppelsemigroups are algebras defined on a set with two binary associative operations. The notion of a dimonoid was introduced by J.-L.
A.V. Zhuchok, G.F. Pilz
doaj   +1 more source

Rationally connected rational double covers of primitive Fano varieties [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2020
We show that for a Zariski general hypersurface $V$ of degree $M+1$ in ${\mathbb P}^{M+1}$ for $M\geqslant 5$ there are no Galois rational covers $X\dashrightarrow V$ of degree $d\geqslant 2$ with an abelian Galois group, where $X$ is a rationally ...
Aleksandr V. Pukhlikov
doaj   +1 more source

Super-isolated abelian varieties [PDF]

open access: yesJournal of Number Theory, 2020
We call an abelian variety over a finite field $\mathbb{F}_q$ super-isolated if its ($\mathbb{F}_q$-rational) isogeny class contains a single isomorphism class. In this paper, we use the Honda-Tate theorem to characterize super-isolated ordinary simple abelian varieties by certain algebraic integers.
openaire   +3 more sources

Large U(1) charges in F-theory

open access: yesJournal of High Energy Physics, 2018
We show that massless fields with large abelian charges (up to at least q = 21) can be constructed in 6D F-theory models with a U(1) gauge group. To show this, we explicitly construct F-theory Weierstrass models with nonabelian gauge groups that can be ...
Nikhil Raghuram, Washington Taylor
doaj   +1 more source

Pentagonal quasigroups, their translatability and parastrophes

open access: yesOpen Mathematics, 2021
Any pentagonal quasigroup QQ is proved to have the product xy=φ(x)+y−φ(y)xy=\varphi \left(x)+y-\varphi (y), where (Q,+)\left(Q,+) is an Abelian group, φ\varphi is its regular automorphism satisfying φ4−φ3+φ2−φ+ε=0{\varphi }^{4}-{\varphi }^{3}+{\varphi }^
Dudek Wieslaw A., Monzo Robert A. R.
doaj   +1 more source

A beginner's guide to non-abelian iPEPS for correlated fermions

open access: yesSciPost Physics Lecture Notes, 2021
Infinite projected entangled pair states (iPEPS) have emerged as a powerful tool for studying interacting two-dimensional fermionic systems. In this review, we discuss the iPEPS construction and some basic properties of this tensor network (TN) ansatz.
Benedikt Bruognolo, Jheng-Wei Li, Jan von Delft, Andreas Weichselbaum
doaj   +1 more source

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