Results 11 to 20 of about 8,796 (232)

On the resultant hypersurface [PDF]

open access: yesPacific Journal of Mathematics, 1990
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alla Ditta Choudary   +1 more
openaire   +5 more sources

INVARIANT HYPERSURFACES [PDF]

open access: yesJournal of the Institute of Mathematics of Jussieu, 2020
AbstractThe following theorem, which includes as very special cases results of Jouanolou and Hrushovski on algebraic $D$-varieties on the one hand, and of Cantat on rational dynamics on the other, is established: Working over a field of characteristic zero, suppose $\unicode[STIX]{x1D719}_{1},\unicode[STIX]{x1D719}_{2}:Z\rightarrow X$ are dominant ...
Jason Bell, Rahim Moosa, Adam Topaz
openaire   +3 more sources

Bounding Projective Hypersurface Singularities [PDF]

open access: yes, 2022
We first provide background necessary for understanding monodromy and spectra. We then compare several different methods involving Hodge-theoretic spectra of singularities which produce constraints on the number and type of isolated singularities on a ...
Castor, Benjamin
core   +2 more sources

Irreducibility of Hypersurfaces [PDF]

open access: yesCommunications in Algebra, 2009
Given a polynomial P in several variables over an algebraically closed field, we show that except in some special cases that we fully describe, if one coefficient is allowed to vary, then the polynomial is irreducible for all but at most deg(P)^2-1 values of the coefficient.
Bodin, Arnaud   +2 more
openaire   +2 more sources

Implicitization of hypersurfaces

open access: yesJournal of Symbolic Computation, 2017
We present new, practical algorithms for the hypersurface implicitization problem: namely, given a parametric description (in terms of polynomials or rational functions) of the hypersurface, find its implicit equation. Two of them are for polynomial parametrizations: one algorithm, "ElimTH", has as main step the computation of an elimination ideal via ...
ABBOTT, JOHN ANTHONY   +2 more
openaire   +3 more sources

The topology of terminal quartic 3-folds [PDF]

open access: yes, 2007
Let Y be a quartic hypersurface in P^4 with terminal singularities. The Grothendieck-Lefschetz theorem states that any Cartier divisor on Y is the restriction of a Cartier divisor on P^4 .
Kaloghiros, Anne-Sophie
core   +2 more sources

Hypersurfaces of cohomogeneity one and hypersurfaces of revolution

open access: yesDifferential Geometry and its Applications, 2004
A Riemannian manifold \(M\) equipped with a Lie group \(G\) of isometries has cohomogeneity \(1\) whenever the principal \(G\)-orbits are of codimension \(1\). Here, the authors deal with such complete cohomogeneity-\(1\) hypersurfaces \(M\) in \(\mathbb R^{n+1}\), \(n\geq 3\), which are unflat at infinity. He proves the following results: (1) If \(G\)
Mercuri, Francesco   +1 more
openaire   +2 more sources

BI-ROTATIONAL HYPERSURFACE WITH Δx=Ax IN 4-SPACE [PDF]

open access: yes, 2022
We introduce the bi-rotational hypersurface $\mathbf{x(}u,v,w\mathbf{)}$ in the four dimensional Euclidean geometry ${\mathbb{E}}^{4}.$ We obtain the $i$-th curvatures of the hypersurface.
Yayli, Yusuf   +4 more
core   +1 more source

Homaloidal hypersurfaces and hypersurfaces with vanishing Hessian

open access: yesAdvances in Mathematics, 2008
56 pages. v2: Some material added in section 1; minor changes.
CILIBERTO C, RUSSO, Francesco, SIMIS, A.
openaire   +4 more sources

On a Hypersurface Of a Generalized (α,β)- Metric Space [PDF]

open access: yes, 2020
In 1985, Matsumoto. M.,[6] has discussed the properties of special hypersurface of Rander’s space with () = () being the gradient of a scalar function () . He had considered a hypersurface which is given by () = constant. In this paper we have considered
Singh, N, Pandey, R. K.
core   +1 more source

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