Results 11 to 20 of about 11,657,940 (311)

The a-numbers of Fermat and Hurwitz curves [PDF]

open access: yesJournal of Pure and Applied Algebra, 2018
For an algebraic curve $\mathcal{X}$ defined over an algebraically closed field of characteristic $p >0$, the $a$-number $a(\mathcal{X})$ is the dimension of the space of exact holomorphic differentials on $\mathcal{X}$. We compute the $a$-number for an infinite families of Fermat and Hurwitz curves.
Montanucci, Maria, Speziali, Pietro
openaire   +2 more sources

The a-Number of Certain Hyperelliptic Curves

open access: yesIranian Journal of Science and Technology, Transactions A: Science, 2022
9 ...
Nourozi, Vahid   +2 more
openaire   +2 more sources

On the chromatic number of disjointness graphs of curves [PDF]

open access: yesJournal of Combinatorial Theory, Series B, 2020
21 pages, 5 ...
Pach, János, Tomon, István
openaire   +7 more sources

The 𝑎-numbers of Jacobians of Suzuki curves [PDF]

open access: yesProceedings of the American Mathematical Society, 2013
For m ∈
Friedlander, Holley   +4 more
openaire   +2 more sources

a-numbers of curves in Artin–Schreier covers [PDF]

open access: yesAlgebra & Number Theory, 2020
Let $π: Y \to X$ be a branched $\mathbf{Z}/p \mathbf{Z}$-cover of smooth, projective, geometrically connected curves over a perfect field of characteristic $p>0$. We investigate the relationship between the $a$-numbers of $Y$ and $X$ and the ramification of the map $π$.
Booher, Jeremy, Cais, Bryden
openaire   +4 more sources

On the number of real curves associated to a complex algebraic curve [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
Using non-Euclidean crystallographic groups we give a short proof of a theorem of Natanzon that a complex algebraic curve of genus g ⩾
Emilio Bujalance   +2 more
openaire   +1 more source

The \(a\)-number of Jacobians of certain maximal curves

open access: yesTransactions on Combinatorics, 2021
Summary: In this paper, we compute a formula for the \(a\)-number of certain maximal curves given by the equation \(y^q+y=x^{\frac{q+1}{2}}\) over the finite field \(\mathbb{F}_{q^2}\). The same problem is studied for the maximal curve corresponding to \(\sum_{t=1}^s y^{q/2^t}=x^{q+1}\) with \(q=2^s\), over the finite field \(\mathbb{F}_{q^2}\).
Nourozi, vahid   +2 more
openaire   +3 more sources

Milnor number equals Tjurina number for functions on space curves [PDF]

open access: yes, 2001
The equality of the Milnor number and Tjurina number for functions on space curve singularities, as conjectured recently by V. Goryunov, is proved.
David Mond   +3 more
core   +1 more source

The Writhing Number of a Space Curve [PDF]

open access: yesProceedings of the National Academy of Sciences, 1971
A geometric invariant of a space curve, the writhing number, is defined and studied. For the central curve of a twisted cord the writhing number measures the extent to which coiling of the central curve has relieved local twisting of the cord. This study originated in response to questions that arise in the study of supercoiled double-stranded DNA ...
openaire   +2 more sources

Computing the Geometric Intersection Number of Curves [PDF]

open access: yesJournal of the ACM, 2019
The geometric intersection number of a curve on a surface is the minimal number of self-intersections of any homotopic curve, i.e., of any curve obtained by continuous deformation. Given a curve c represented by a closed walk of length at most ℓ on a combinatorial surface of complexity n , we
Despré, Vincent, Lazarus, Francis
openaire   +8 more sources

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