Weierstrass points on schemes.
Weierstrass points on trigonal curves of genus five
Weierstrass Points with First Non-Gap Four on a Double Covering of a Hyperelliptic Curve
2000 Mathematics Subject Classification: Primary 14H55; Secondary 14H30, 14H40, 20M14.Let H be a 4-semigroup, i.e., a numerical semigroup whose minimum positive element is four. We denote by 4r(H) + 2 the minimum element of H which is congruent to 2 modulo 4. If the genus g of H is larger than 3r(H) − 1, then there is a cyclic covering π : C −→ P^1 of curves with degree 4 and its ramification point P such that the Weierstrass semigroup H(P) of P is H (Komeda [1]). In this paper it is showed that...
Weierstrass Points with First Non-Gap Four on a Double Covering of a Hyperelliptic Curve II
2000 Mathematics Subject Classification: Primary 14H55; Secondary 14H30, 14J26.A 4-semigroup means a numerical semigroup whose minimum positive integer is 4. In [7] we showed that a 4-semigroup with some conditions is the Weierstrass semigroup of a ramification point on a double covering of a hyperelliptic curve. In this paper we prove that the above statement holds for every 4-semigroup.
Weierstrass semigroups and the canonical ideal of non-trigonal curves.
Weierstrass Weight of Gorenstein Singularities with one or two branches.
Weighted Gaussian maps.
Weights of Weierstrass Points in Double Coverings of Curves of Genus One or Two.
When is a complex elliptic curve the product of two real algebraic curves?
When is a group homomorphism a covering homomorphism?
When is an Abelian Surface Isomorphic or Isogeneous to a Product of Elliptic Curves?
When Ramification points meet.
Which Abelian Surfaces are Products of Elliptic Curves ?
Whittaker and Bessel functors for
The theory of Whittaker functors for is an essential technical tools in Gaitsgory’s proof of the Vanishing Conjecture appearing in the geometric Langlands correspondence. We define Whittaker functors for and study their properties. These functors correspond to the maximal parabolic subgroup of , whose unipotent radical is not commutative.We also study similar functors corresponding to the Siegel parabolic subgroup of , they are related with Bessel models for and Waldspurger models for .We...
Wild ramification of moduli spaces for curves or for abelian varieties
Wiles dokázal Taniyamovu hypotézu; důsledkem je Fermatova věta
Winding quotients and some variants of Fermat's Last Theorem.
Witt group of hyperelliptic curves.
Wronski algebra systems on families of singular curves
Wronskians and linear independence in fields of prime characeteristic.