Results 61 to 70 of about 9,476 (202)

Stability of quadric bundles [PDF]

Geometriae Dedicata, 2013
Let $(E, )$ 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
openaire   +3 more sources

WDVV‐based recursion for open Gromov–Witten invariants

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract We give a computability result for open Gromov–Witten invariants based on open Witten–Dijkgraaf–Verlinde–Verlinde (WDVV) equations. This is analogous to the result of Kontsevich–Manin for closed Gromov–Witten invariants. For greater generality, we base the argument on a formal object, the Frobenius superpotential, that generalizes several ...
Roi Blumberg, Sara B. Tukachinsky
wiley   +1 more source

Crossing and Anticrossing of Exchange‐Coupled Molecular Spin Excitation Energy Levels

Small, Volume 22, Issue 12, 25 February 2026.
Orientation matters: The excitation energy levels of exchange‐coupled spins of two nickelocene molecules anchored to superconducting electrodes are explored via inelastic electron tunneling spectroscopy. Depending on the tilt angle of the single‐molecule magnetic probe the levels cross or exhibit avoided crossing. Abstract The superconducting Pb tip of
Lorenz Meyer, Maximilian Kögler, Robert Henninger, Nicolas Néel, Jörg Kröger   +4 more
wiley   +1 more source

On the Invertibility of Motives of Affine Quadrics [PDF]

Documenta Mathematica, 2015
We show that the reduced motive of a smooth affine quadric is invertible as an object of the triangulated category of motives DM(k, ZZ[1/e]) (where k is a perfect field of exponential characteristic e).
Tom Bachmann
semanticscholar   +1 more source

Differential effects of freshwater browning across fish species: consequences for individual‐ to community‐level fish traits in north temperate lakes

Biological Reviews, Volume 101, Issue 1, Page 128-146, February 2026.
ABSTRACT The browning of freshwater ecosystems is increasingly evident in temperate and northern regions, with widespread ramifications for lake physics, chemistry, and biology. Contrasting results on how freshwater browning may impact fish have been reported, but there has been no comprehensive examination of how browning may cause cascading effects ...
Allison M. Roth, Vincent Fugère, Marco A. Rodríguez, Jean‐François Lapierre, Joe Sánchez Schacht, Sapna Sharma, Mehdi M. Aqdam, Jeremy Fonvielle, Michelle Gros, Andrew J. Tanentzap, Matilda L. Andersson, Renee M. van Dorst, Jan Karlsson, Christopher T. Solomon, Christer Brönmark, Peter Eklöv, Kristin Scharnweber, Magnus Huss, Beatrix E. Beisner, Fernando Chaguaceda, Cristina Charette, Alison M. Derry, Gregor F. Fussmann, Andrew P. Hendry, Kaj Hulthén, Sandra Klemet‐N'Guessan, Irene Gregory‐Eaves   +26 more
wiley   +1 more source

BIHARMONIC CURVES INTO QUADRICS [PDF]

Glasgow Mathematical Journal, 2014
AbstractWe develop an essentially algebraic method to study biharmonic curves into an implicit surface. Although our method is rather general, it is especially suitable to study curves in surfaces defined by a polynomial equation: In particular, we use it to give a complete classification of biharmonic curves in real quadrics of the three-dimensional ...
MONTALDO, STEFANO, RATTO, ANDREA
openaire   +2 more sources

Equivariant Kuznetsov components for cubic fourfolds with a symplectic involution

Bulletin of the London Mathematical Society, Volume 58, Issue 2, February 2026.
Abstract We study the equivariant Kuznetsov component KuG(X)$\mathrm{Ku}_G(X)$ of a general cubic fourfold X$X$ with a symplectic involution. We show that KuG(X)$\mathrm{Ku}_G(X)$ is equivalent to the derived category Db(S)$D^b(S)$ of a K3$K3$ surface S$S$, where S$S$ is given as a component of the fixed locus of the induced symplectic action on the ...
Laure Flapan, Sarah Frei, Lisa Marquand
wiley   +1 more source

A Note on Rational Lagrange Polynomials for CAGD Applications and Isogeometric Analysis

Mathematics
While the established theory of computer-aided geometric design (CAGD) suggests that rational Bernstein–Bézier polynomials associated with control points can be used to accurately represent conics and quadrics, this paper shows that the same goal can be ...
Christopher Provatidis
doaj   +1 more source

Rigidity of anti‐de Sitter (2+1)‐spacetimes with convex boundary near the Fuchsian locus

Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract We prove that globally hyperbolic compact anti‐de Sitter (2+1)‐spacetimes with a strictly convex spacelike boundary that is either smooth or polyhedral and whose holonomy is close to Fuchsian are determined by the induced metric on the boundary.
Roman Prosanov, Jean‐Marc Schlenker
wiley   +1 more source

Free Vibration Analysis of Bulkhead-Stiffened Functionally Graded Open Shell Using a Meshless Method

Shock and Vibration, 2022
This paper focuses on the free vibration analysis of bulkhead-stiffened functionally graded open shell (FGOS) by means of the first-order shear deformation theory (FSDT) and the meshless strong form method.
Songhun Kwak, Kwanghun Kim, Kyongjin Pang, Sok Kim, Pyol Kim   +4 more
doaj   +1 more source