Results 61 to 70 of about 193 (115)
Birational geometry of Fano hypersurfaces of index two
, 2016 We prove that every non-trivial structure of a rationally connected fibre space on a generic (in the sense of Zariski topology) hypersurface $V$ of degree $M$ in the $(M+1)$-dimensional projective space for $M\geq 16$ is given by a pencil of hyperplane ...
Pukhlikov, AV
core +1 more source
On dominant rational maps from a very general complete intersection surface in P^4
, 2017 Let S be a very general complete intersection surface of multidegree (d1,d2) in P^4. The following problem arises: determine the couples (d1,d2) such that the surface S does not have any “non-evident” rational map to other surfaces.
LUCA RIZZI +5 more
core +1 more source
Threefolds with big and nef anticanonical bundles II
Open Mathematics, 2011 Jahnke Priska +2 more
doaj +1 more source
Irreducibility of limits of Galois representations of Saito-Kurokawa type. [PDF]
Res Number Theory, 2021 Berger T, Klosin K.
europepmc +1 more source
Canonical double covers of minimal rational surfaces and the non-existence of carpets
, 2013 This article delves into the relation between the deformation theory of finite morphisms to projective space and the existence of ropes, embedded in projective space, with certain invariants. We focus on the case of canonical double covers X of a minimal
Gallego Rodrigo, Francisco Javier +3 more
core +1 more source
On real forms and birational transformations [PDF]
This thesis is split into two parts: the first one, Part I, combines the first four papers that came out of my PhD, all on the topic of real forms. Two out of the four papers were written jointly with co-authors, namely one with Jérémy Blanc and Pierre ...
Bot, Anna
core
On the Stabilisation of Rational Surface Maps
The dynamics of a rational surface map $f : X \dashrightarrow X$ are easier to analyse when $f$ is `algebraically stable'. Here we investigate when and how this condition can be achieved by conjugating $f$ with a birational change of coordinates. We show
Birkett, Richard A. P.
core
On the rational real Jacobian conjecture
, 2013 Jacobian conjectures (that nonsingular implies a global inverse) for rational everywhere defined maps of $\bbb{R}^n$ to itself are considered, with no requirement for a constant Jacobian determinant or a rational inverse.
Campbell, Andrew
core
On the rational real Jacobian conjecture
, 2015 Jacobian conjectures (that nonsingular implies a global inverse) for rational everywhere dened maps of Rn to itself are considered, with no requirement for a constant Jacobian determinant or a rational inverse.
Campbell, Andrew
core