Results 21 to 30 of about 4,829,005 (281)

Hurwitz Monodromy and Full Number Fields [PDF]

open access: yes, 2014
We give conditions for the monodromy group of a Hurwitz space over the configuration space of branch points to be the full alternating or symmetric group on the degree.
Roberts, David P., Venkatesh, Akshay
core   +3 more sources

Some Properties of Euler’s Function and of the Function τ and Their Generalizations in Algebraic Number Fields

open access: yesMathematics, 2021
In this paper, we find some inequalities which involve Euler’s function, extended Euler’s function, the function τ, and the generalized function τ in algebraic number fields.
Nicuşor Minculete, Diana Savin
doaj   +1 more source

BETTI NUMBERS OF GAUSSIAN FIELDS [PDF]

open access: yesJournal of The Korean Astronomical Society, 2013
We present the relation between the genus in cosmology and the Betti numbers for excursion sets of three- and two-dimensional smooth Gaussian random fields, and numerically investigate the Betti numbers as a function of threshold level. Betti numbers are topological invariants of figures that can be used to distinguish topological spaces.
Park, Changbom   +8 more
openaire   +3 more sources

The Hecke Group Hλ4 Acting on Imaginary Quadratic Number Fields

open access: yesJournal of Mathematics, 2021
Let Hλ4 be the Hecke group x,y:x2=y4=1 and, for a square-free positive integer n, consider the subset ℚ∗−n=a+−n/c|a,b=a2+n/c∈ℤ, c∈2ℤ of the quadratic imaginary number field ℚ−n.
Abdulaziz Deajim
doaj   +1 more source

Parallel machine arithmetic for recurrent number systems in non-quadratic fields [PDF]

open access: yesКомпьютерная оптика, 2020
The paper proposes a new method of synthesis of computer arithmetic systems for "error-free" parallel calculations. The difference between the proposed approach and calculations in traditional systems of Residue Number Systems for the direct sum of ...
Vladimir Chernov
doaj   +1 more source

Discrete orthogonal transforms on lattices of integer elements of quadratic fields [PDF]

open access: yesКомпьютерная оптика, 2021
In this paper, we introduce a new class of discrete orthogonal transforms (DОT) defined on lattices of integer elements of quadratic fields. The method of synthesis of such transforms essentially uses the specifics of the representation of integer ...
V.M. Chernov
doaj   +1 more source

Generators and number fields for torsion points of a special elliptic curve [PDF]

open access: yesArab Journal of Mathematical Sciences, 2020
Let E be an elliptic curve with Weierstrass form y2=x3−px, where p is a prime number and let E[m] be its m-torsion subgroup. Let p1=(x1,y1) and p2=(x2,y2) be a basis for E[m], then we prove that ℚ(E[m])=ℚ(x1,x2,ξm,y1) in general.
Hasan Sankari, Mustafa Bojakli
doaj   +1 more source

Bipowers in Number Fields [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
The set of all solutions to the Fermat equation is given a structure. This structure is then characterized up to isomorphism in terms of certain subsets of the integers modulo a prime.
openaire   +2 more sources

On the strongly ambiguous classes of some biquadratic number fields [PDF]

open access: yesMathematica Bohemica, 2016
We study the capitulation of $2$-ideal classes of an infinite family of imaginary bicyclic biquadratic number fields consisting of fields $\Bbbk=\Bbb Q(\sqrt{2pq}, {\rm i})$, where ${\rm i}=\sqrt{-1}$ and $p\equiv-q\equiv1 \pmod4$ are different primes ...
Abdelmalek Azizi   +2 more
doaj   +1 more source

Relative integral basis for algebraic number fields

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
At first conditions are given for existence of a relative integral basis for OK≅Okn−1⊕I with [K;k]=n. Then the constrtiction of the ideal I in OK≅Okn−1⊕I is given for proof of existence of a relative integral basis for OK4(m1,m2)/Ok(​m3).
Mohmood Haghighi
doaj   +1 more source

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