Results 11 to 20 of about 8,114 (184)

Tropicalization of the moduli space of stable maps [PDF]

open access: yes, 2015
Let $X$ be an algebraic variety and let $S$ be a tropical variety associated to $X$. We study the tropicalization map from the moduli space of stable maps into $X$ to the moduli space of tropical curves in $S$.
Yu, Tony Yue
core   +1 more source

Filtered screens and augmented Teichm\"uller space [PDF]

open access: yes, 2015
We study a new bordification of the decorated Teichm\"uller space for a multiply punctured surface F by a space of filtered screens on the surface that arises from a natural elaboration of earlier work of McShane-Penner.
DBA Epstein   +18 more
core   +2 more sources

Marked fatgraph complexes and surface automorphisms [PDF]

open access: yes, 2012
Combinatorial aspects of the Torelli-Johnson-Morita theory of surface automorphisms are extended to certain subgroups of the mapping class groups. These subgroups are defined relative to a specified homomorphism from the fundamental group of the surface ...
Kuno, Yusuke   +2 more
core   +2 more sources

Invariants of Legendrian Knots and Coherent Orientations

open access: yes, 2001
We provide a translation between Chekanov's combinatorial theory for invariants of Legendrian knots in the standard contact R^3 and a relative version of Eliashberg and Hofer's Contact Homology. We use this translation to transport the idea of ``coherent
Etnyre, John B.   +2 more
core   +4 more sources

D-branes at Toric Singularities: Model Building, Yukawa Couplings and Flavour Physics [PDF]

open access: yes, 2010
We discuss general properties of D-brane model building at toric singularities. Using dimer techniques to obtain the gauge theory from the structure of the singularity, we extract results on the matter sector and superpotential of the corresponding gauge
A Font   +58 more
core   +1 more source

Mumford dendrograms and discrete p-adic symmetries

open access: yes, 2008
In this article, we present an effective encoding of dendrograms by embedding them into the Bruhat-Tits trees associated to $p$-adic number fields. As an application, we show how strings over a finite alphabet can be encoded in cyclotomic extensions of $\
A. Yu. Khrennikov   +11 more
core   +2 more sources

Gauge Theoretic Invariants of, Dehn Surgeries on Knots [PDF]

open access: yes, 2001
New methods for computing a variety of gauge theoretic invariants for homology 3-spheres are developed. These invariants include the Chern-Simons invariants, the spectral flow of the odd signature operator, and the rho invariants of irreducible SU(2 ...
Akbulut   +18 more
core   +5 more sources

Classifying representations by way of Grassmannians [PDF]

open access: yes, 2014
Let $\Lambda$ be a finite dimensional algebra over an algebraically closed field. Criteria are given which characterize existence of a fine or coarse moduli space classifying, up to isomorphism, the representations of $\Lambda$ with fixed dimension $d ...
Huisgen-Zimmermann, Birge
core   +1 more source

c-extremization from toric geometry [PDF]

open access: yes, 2017
We derive a geometric formulation of the 2d central charge $c_r$ from infinite families of 4d $\mathcal{N}=1$ superconformal field theories topologically twisted on constant curvature Riemann surfaces.
Amariti, Antonio   +2 more
core   +3 more sources

Elinvar Materials: Recent Progress and Challenges

open access: yesAdvanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

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