Results 41 to 50 of about 1,118 (197)

The topology of terminal quartic 3-folds

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   +1 more source

Motives of some Fano varieties [PDF]

open access: yes, 2009
We study the Fano varieties of projective k-planes lying in hypersurfaces and investigate the associated motives.
Lewis J. D., Sertöz, A. S.
core   +1 more source

Fano Varieties in Mori Fibre Spaces [PDF]

open access: yesInternational Mathematics Research Notices, 2015
32 pages. Results on threefolds and rational homogeneous spaces strengthened. Result on toric varieties corrected.
Codogni G.   +3 more
openaire   +5 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Fano 3-folds, K3 surfaces and graded rings [PDF]

open access: yes, 2002
Explicit birational geometry of 3-folds represents a second phase of Mori theory, going beyond the foundational work of the 1980s. This paper is a tutorial and colloquial introduction to the explicit classification of Fano 3-folds (Q-Fano 3-folds), a ...
Reid, Miles   +2 more
core  

K-stability of Fano spherical varieties [PDF]

open access: yesAnnales scientifiques de l'École normale supérieure, 2020
We prove a criterion for K-stability of a $\mathbb{Q}$-Fano spherical variety with respect to equivariant special test configurations, in terms of its moment polytope and some combinatorial data associated to the open orbit. Combined with the equivariant version of the Yau-Tian-Donaldson conjecture for Fano manifolds proved by Datar and Székelyhidi, it
openaire   +2 more sources

Laser‐Induced Periodic Phase‐Transition of 2D‐MoTe2 Nanograting Template for Frequency‐Shift Digital‐SERS Immunoassay of Autoimmune Disease

open access: yesAdvanced Science, EarlyView.
A protocol of fs‐laser‐induced periodic phase‐transition of 2D‐MoTe2 template, inducing AuNPs@1T’‐MoTe2 nanograting, is developed. The labeled AuNPs@1T’‐MoTe2 substrate conjugated with specialized immunoglobulin G demonstrates an unexpectedly high discrimination accuracy close to unity for serological diagnosis of rheumatoid arthritis by frequency ...
Yao Yao   +9 more
wiley   +1 more source

A Dual‐Channel Synergistic Ultrasensitive Biosensor for Tumor Liquid Biopsy

open access: yesAdvanced Science, EarlyView.
ABSTRACT Liquid biopsy technology, which detects circulating tumor DNA (ctDNA) in cerebrospinal fluid, plays a crucial role in the early diagnosis and precision treatment of gliomas. However, the intrinsically low abundance and rapid clearance of ctDNA pose substantial challenges for conventional analytical techniques, such as droplet digital PCR and ...
Yu Sun   +12 more
wiley   +1 more source

Quantum cohomology of the odd symplectic Grassmannian of lines [PDF]

open access: yes, 2013
Odd symplectic Grassmannians are a generalization of symplectic Grassmannians to odd-dimensional spaces. Here we compute the classical and quantum cohomology of the odd symplectic Grassmannian of lines.
Pech, Clelia
core   +1 more source

Mechanically Induced Switching Between Orbital‐ and Fano‐Resonance Rectification in a Dual‐Anchored Molecular Junction

open access: yesAngewandte Chemie, Volume 138, Issue 25, 15 June 2026.
Mechanical control of anchoring chemistry enables switching between orbital‐driven and interference‐driven rectification in a single‐molecule junction. ABSTRACT Achieving precise control over charge transport through individual molecules is central to advancing single‐molecule electronics.
Xin Sun   +8 more
wiley   +2 more sources

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