Results 21 to 30 of about 2,707 (220)
Singular spin structures and superstrings
Journal of High Energy Physics, 2023 There are two main problems in finding the higher genus superstring measure. The first one is that for g ≥ 5 the super moduli space is not projected. Furthermore, the supermeasure is regular for g ≤ 11, a bound related to the source of singularities due ...
Marco Matone
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Cyclic surfaces accompanying non-ruled quadrics of rotation
Омский научный вестник, 2023 The paper considers the shaping of cyclic surfaces based on nonlinear rotation, in which the axis of rotation and the generatrix in the general case are three-dimensional smooth curves. As a tool for shaping surfaces of non-linear rotation, the method of
K. L. Panchuk +2 more
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Perturbation of quadrics [PDF]
, 2002 The aim of this paper is to study what happens when a slight perturbation affects the coefficients of a quadratic equation defining a variety (a quadric) in Rn.
Clotet, Josep +2 more
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Michigan Mathematical Journal, 2020 Quadric complexes are square complexes satisfying a new type of combinatorial nonpositive curvature condition. We characterize these complexes by their 1-skeleta, which turn out to be precisely the hereditary modular graphs. We prove an invariant biclique theorem for quadric complexes by adapting dismantlability to bipartite graphs. We also show that C(
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Using the Theory of Functional Connections to Solve Boundary Value Geodesic Problems
Mathematical and Computational Applications, 2022 This study provides a least-squares-based numerical approach to estimate the boundary value geodesic trajectory and associated parametric velocity on curved surfaces.
Daniele Mortari
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Geometric structures for maximal representations and pencils
Forum of Mathematics, SigmaWe study fibrations of the projective model for the symmetric space associated with $\operatorname {\mathrm {SL}}(2n,\mathbb {R})$ by codimension $2$ projective subspaces, or pencils of quadrics.
Colin Davalo
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Hexagons govern three-qubit contextuality [PDF]
QuantumSplit Cayley hexagons of order two are distinguished finite geometries living in the three-qubit symplectic polar space in two different forms, called classical and skew.
Metod Saniga +5 more
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International Mathematics Research Notices, 2010 Various corrections (suggested by the referee).
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Stability of quadric bundles [PDF]
Geometriae Dedicata, 2013 Let $(E,φ)$ be decorated vector bundle of type $(a,b,c,N)$ on a smooth projective curve $X$. There is a suitable semistability condition for such objects which has to be checked for any weighted filtration of $E$. We prove, at least when $a=2$, that it is enough to consider filtrations of length less or equal than two.
Lo Giudice, Alessio, Pustetto, Andrea
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Pairs of quadrics in 11 variables
, 2015 For non-singular intersections of pairs of quadrics in 11 or more variables, we prove an asymptotic for the number of rational points in an expanding ...
Munshi, Ritabrata
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