Results 91 to 100 of about 1,288,795 (193)

A fractional Fourier integral operator and its extension to classes of function spaces

open access: yesAdvances in Difference Equations, 2018
In this paper, an attempt is being made to investigate a class of fractional Fourier integral operators on classes of function spaces known as ultraBoehmians.
Shrideh K. Al-Omari
doaj   +1 more source

Nearly Linear Time Isomorphism Algorithms for Some Nonabelian Group Classes

open access: yes, 2019
The isomorphism problem for groups, when the groups are given by their Cayley tables is a well-studied problem. This problem has been studied for various restricted classes of groups.
Bireswar Das   +3 more
core   +1 more source

Isomorphism classes of hyperelliptic curves of genus 3 over finite fields [PDF]

open access: yes, 2006
In this paper we present a direct method to compute the number of isomorphism classes of hyperelliptic curves of genus 3 over finite fields Fq. The number of isomorphism classes is a polynomial in q of degree 5.
Deng, Yingpu
core   +1 more source

Isomorphism Classes of Picard Curves over Finite Fields [PDF]

open access: yes, 2003
In this paper we determine the number of isomorphism classes of Picard curves, i.e., superelliptic curves $y^3=f(x)$ of genus three, over finite fields of characteristic different from $3$.
Jong Won Lee
core   +1 more source

Isomorphism classes of Drinfeld modules over finite fields [PDF]

open access: yes
We study isogeny classes of Drinfeld A-modules over finite fields k with commutative endomorphism algebra D, in order to describe the isomorphism classes in a fixed isogeny class.
Katen, Jeffrey   +2 more
core   +3 more sources

On the genus of graphs from commutative rings

open access: yesAKCE International Journal of Graphs and Combinatorics, 2017
Let be a commutative ring with non-zero identity. The cozero-divisor graph of , denoted by , is a graph with vertex-set , which is the set of all non-zero non-unit elements of , and two distinct vertices and in are adjacent if and only if and , where for
S. Kavitha, R. Kala
doaj   +1 more source

The Isomorphism Classes of Hyperelliptic Curves over Finite Fields with Characteristic 2

open access: yes, 2007
在這篇論文裡,我們得到了有限體F_q上之超橢圓曲線在genus為4且特徵值等於2的同構類個數。我們得到了以下的公式: N=2q^7+q^4-q^3 若2整除m N=2q^7+q^4-q^3+4q^2-4q+4 若6整除m N=2q^7+q^4-q^3+4q^2-4q+16 若2整除m,但若6不整除m ,其中q=2^m。這個結果可以被用在超橢圓函數密碼系統(HECC)之上。In this thesis we will find the number of isomorphism classes of ...
楊策仲, Yang, Tse-Chung
core  

On the history of the isomorphism problem of dynamical systems with special regard to von Neumann's contribution [PDF]

open access: yes, 2011
This paper reviews some major episodes in the history of the spatial isomorphism problem of dynamical systems theory (ergodic theory). In particular, by analysing, both systematically and in historical context, a hitherto unpublished letter written in ...
Werndl, Charlotte   +3 more
core   +1 more source

Kinematical superspaces

open access: yesJournal of High Energy Physics, 2019
We classify N =1 d = 4 kinematical and aristotelian Lie superalgebras with spa- tial isotropy, but not necessarily parity nor time-reversal invariance. Employing a quater- nionic formalism which makes rotational covariance manifest and simplifies many of
José Figueroa-O’Farrill, Ross Grassie
doaj   +1 more source

Orbits of one-dimensional cellular automata induced by symmetry transformations

open access: yesPhysics Open
Using a group-theoretic approach, a method for determining the equivalence classes (also called orbits) of the set of rules of one-dimensional cellular automata induced by the symmetry operations of reflection and permutation and their product is ...
Martin Schaller, Karl Svozil
doaj   +1 more source

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