Results 21 to 30 of about 283 (48)

Modular equations of a continued fraction of order six

open access: yesOpen Mathematics, 2019
We study a continued fraction X(τ) of order six by using the modular function theory. We first prove the modularity of X(τ), and then we obtain the modular equation of X(τ) of level n for any positive integer n; this includes the result of Vasuki et al ...
Lee Yoonjin, Park Yoon Kyung
doaj   +1 more source

On some automorphic properties of Galois traces of class invariants from generalized Weber functions of level 5

open access: yesOpen Mathematics, 2019
After the significant work of Zagier on the traces of singular moduli, Jeon, Kang and Kim showed that the Galois traces of real-valued class invariants given in terms of the singular values of the classical Weber functions can be identified with the ...
Eum Ick Sun, Jung Ho Yun
doaj   +1 more source

Capitulation of the 2-ideal classes of type (2, 2, 2) of some quartic cyclic number fields

open access: yesJournal of Mathematical Cryptology, 2019
Let p≡3(mod4){p\equiv 3\pmod{4}} and l≡5(mod8){l\equiv 5\pmod{8}} be different primes such that pl=1{\frac{p}{l}=1} and 2p=pl4{\frac{2}{p}=\frac{p}{l}_{4}}. Put k=ℚ⁢(l){k=\mathbb{Q}(\sqrt{l})}, and denote by ϵ its fundamental unit. Set K=k⁢(-2⁢p⁢ϵ⁢l){K=k(
Azizi Abdelmalek   +3 more
doaj   +1 more source

A counterexample to 'Algebraic function fields with small class number' [PDF]

open access: yes, 2013
I give a counter example of function field over GF(2) of genus 4 with class number one.
Stirpe, Claudio
core  

Rigid meromorphic cocycles for orthogonal groups

open access: yesForum of Mathematics, Sigma
Rigid meromorphic cocycles are defined in the setting of orthogonal groups of arbitrary real signature and constructed in some instances via a p-adic analogue of Borcherds’ singular theta lift.
Lennart Gehrmann   +2 more
doaj   +1 more source

Diophantine equations defined by binary quadratic forms over rational function fields

open access: yes, 2019
We study the ``imaginary" binary quadratic form equations ax^2+bxy+cy^2+g=0 over k[t] in rational function fields, showing that a condition with respect to the Artin reciprocity map, is the only obstruction to the local-global principle for integral ...
Lv, Chang
core   +1 more source

A Study of Kummer's Proof of Fermat's Last Theorem for Regular Primes [PDF]

open access: yes, 2013
We study Kummer's approach towards proving the Fermat's last Theorem for regular primes. Some basic algebraic prerequisites are also discussed in this report, and also a brief history of the problem is mentioned.
Saikia, Manjil P.
core  

Ray class invariants over imaginary quadratic fields

open access: yes, 2011
Let $K$ be an imaginary quadratic field of discriminant less than or equal to -7 and $K_{(N)}$ be its ray class field modulo $N$ for an integer $N$ greater than 1.
Jung, Ho Yun   +2 more
core   +1 more source

An upper bound for the genus of a curve without points of small degree [PDF]

open access: yes, 2012
In this paper I prove that for any prime $p$ there is a constant $C_p>0$ such that for any $n>0$ and for any $p$-power $q$ there is a smooth, projective, absolutely irreducible curve over $\mathbb{F}_q$ of genus $g\leq C_p q^n$ without points of degree ...
Stirpe, Claudio
core   +2 more sources

Some remarks on K-lattices and the Adelic Heisenberg Group for CM curves

open access: yes, 2015
We define an adelic version of a CM elliptic curve $E$ which is equipped with an action of the profinite completion of the endomorphism ring of $E$. The adelic elliptic curve so obtained is provided with a natural embedding into the adelic Heisenberg ...
D'Andrea, Francesco, Franco, Davide
core   +1 more source

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