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SU(2)-invariant steady gradient Ricci solitons on four-manifolds [article]

Timothy Buttsworth
2021 arXiv   pre-print
with group diagram ℤ_4⊂ U(1)⊂ SU(2).  ...  Using center manifolds and topological degree theory, we construct a new family of complete, SU(2)-invariant and steady gradient Ricci solitons on the four-dimensional non-compact cohomogeneity one manifold  ...  Geometry on (0, ∞) × SU(2)/Z n Take an open interval I and an SU (2)-invariant Riemannian metric on I × SU (2)/Zn.  ... 
arXiv:2111.12807v1 fatcat:62wkn4rqurbezkn7zblmf2xlla

The Phase Structure of Mass-Deformed SU(2) × SU(2) Quiver Theory

Timothy J Hollowood, Tom Kingaby
2003 Journal of High Energy Physics  
The phase structure of the finite SU(2)xSU(2) theory with N=2 supersymmetry, broken to N=1 by mass terms for the adjoint-valued chiral multiplets, is determined exactly by compactifying the theory on a  ... 
doi:10.1088/1126-6708/2003/01/005 fatcat:inrrn5ataban3drdae7cigv7cq

Conductivity in Porous 2D Materials Made Crystal Clear

Timothy C. Siu, Timothy A. Su
2019 ACS Central Science  
Timothy C. Siu and Timothy A. Su Department of Chemistry, University of California, Riverside, California 92521, United States © 2019 American Chemical Society  ...  Timothy A. Su: 0000-0001-5934-3292  ... 
doi:10.1021/acscentsci.9b01250 pmid:31989020 pmcid:PMC6978830 fatcat:zar5xodmbvh2ni4qepwzlqov5a

Genomic dimensions of Su(H)-targeted regulatory belts in Drosophila [article]

Elizabeth Stroebele, Timothy Fuqua, Madelyn Warren, Danielle Herrig, Christian Noblett, Xin Yuan, Albert Erives
2016 bioRxiv   pre-print
These regulatory belts contain one or more canonical binding sites for Su(H) along with ~15–30 other binding sites.  ...  Each Su(H)-type regulatory belt (SUH-RB) is a 0.6–1.0 kb chain of conservation peaks consistent with a transcriptional enhancer or core promoter.  ...  Thus, vertebrate Su(H), RBPJκ (also CBF1 or CSL for CBF1/Su(H)/Lag-1), has the same biochemical DNA binding preference as Drosophila Su(H), which demonstrates that the Su(H) target sequence and binding  ... 
doi:10.1101/055707 fatcat:rqa63h7jznc53od2rsdxlmn4py

Transboundary air pollution and environmental justice: Vancouver and Seattle compared

Jason G. Su, Timothy Larson, Timothy Gould, Martin Cohen, Michael Buzzelli
2009 GeoJournal  
land use data inputs can be used effectively to predict traffic related pollution concentrations (Brauer et al. 2003; Briggs et al. 1997; Henderson et al. 2007; Jerrett et al. 2005a; Ross et al. 2006; Su  ... 
doi:10.1007/s10708-009-9269-6 fatcat:mymdojwwqzhhfdtpjkfvzwpfei

Desmoplastic and neurotropic melanoma

Lyndon D. Su, Douglas R. Fullen, Lori Lowe, Timothy S. Wang, Jennifer L. Schwartz, Vincent M. Cimmino, Vernon K. Sondak, Timothy M. Johnson
2004 Cancer  
BACKGROUND. Desmoplastic and neurotropic melanoma (DNMM) occasionally metastasizes to regional lymph nodes and extranodal sites. The value of sentinel lymph node biopsy (SLNB) has not been demonstrated clearly for patients with DNMM. The authors report on the utility of SLNB in the management of patients with DNMM. METHODS. The authors identified 33 patients with DNMM who were seen during a 5-year period in their institution who underwent lymphatic mapping and SLNB. Clinical and histopathologic
more » ... data were reviewed. RESULTS. Thirty-three patients with DNMM underwent SLNB (mean Breslow depth, 4.0 mm; median, 2.8 mm). There were 25 male patients and 8 female patients with a median age of 61 years (range, 31-86 years). Fifty-two percent of tumors presented in the head and neck region, and 24% were associated with lentigo maligna. Four of 33 patients (12%) without clinical evidence of metastatic disease who underwent SLNB had at least 1 positive sentinel lymph node. No additional positive lymph nodes were found in subsequent therapeutic regional lymphadenectomy in any of these four patients. CONCLUSIONS. SLNB detected subclinical metastases of DNMM to regional lymph nodes. SLNB at the time of resection can provide useful information to guide early treatment and, coupled with lymphadenectomy in positive patients, may limit tumor spread and prevent recurrence at the draining lymph node basin. Cancer
doi:10.1002/cncr.11947 pmid:14745878 fatcat:lawrzdpuknbgzj4weo4gylzd34

Exact scattering in the SU(n) supersymmetric principal chiral model

Jonathan M. Evans, Timothy J. Hollowood
1997 Nuclear Physics B  
The SU(n)_L*SU(n)_R symmetry of the lagrangian is manifest in the S-matrix construction.  ...  The supersymmetries, on the other hand, are incorporated in the guise of spin-1/2 charges acting on a set of RSOS kinks associated with su(n) at level n.  ...  (2)SU( 2 )).  ... 
doi:10.1016/s0550-3213(97)00077-1 fatcat:2k7miszqnjdkpavqj67i3s6ize

Reward impacts visual statistical learning [article]

Su Hyoun Park, Leeland L. Rogers, Matthew R. Johnson, Timothy J. Vickery
2020 bioRxiv   pre-print
Humans automatically and unintentionally detect and remember regularities in the visual environment−a type of learning termed visual statistical learning (VSL). Many aspects of learning from reward resemble statistical learning in some respects, yet whether and how reward learning impacts VSL is largely unexamined. In two studies, we investigated the impact of reward on VSL and examined the neural basis of this interaction using fMRI. Subjects completed a risky choice task, in which they
more » ... the values (high or low) of fractal images through a trial-and-error binary-choice task. Unbeknownst to subjects, we paired images so that some images always predicted other images on the following trial. This led to four types of pairings (High-High, High-Low, Low-High, and Low-Low). In a subsequent recognition task and reward memory task, we asked them to choose the more familiar of two pairs (a target and a foil) and to recall the value of images (high or low). We found better recognition when the first image of a pair was a high-value image, with High-High pairs showing the highest recognition rate. To investigate the neural basis of this effect, we measured brain responses to visual images that were associated with both varying levels of reward and sequential contingencies with event-related fMRI. Subjects completed the same risky choice task and then passively viewed a stream of the images with pairwise relationships intact. Brain responses to images during the risky choice task were affected by both value and statistical contingencies. When we compared responses between the first image of a pair that was high-value and the first image of a pair that was low-value, we found greater activation in regions that included inferior frontal gyrus, left anterior cingulate gyrus, middle temporal gyrus, superior temporal gyrus, hippocampus, orbitofrontal cortex, caudate, nucleus accumbens, hippocampus, and lateral occipital cortex. These findings are not driven solely by the value difference, but rather the interaction between statistically structured information and reward − the same value contrast yielded no regions for either second-image contrasts or for singletons. Our results suggest that the first images of pairs that were associated with high-value, in comparison to those associated with low-value, were involved in greater attentional engagement, potentially enabling better memory for statistically learned pairs and reward information. Additionally, we found neural evidence that when an image contains both statistical structure and reward information, the reward learning may be predicted by the type of the statistical structure it is associated with. We conclude that reward contingencies affect VSL, with high-value associated with stronger behavioral and neural signatures of such learning.
doi:10.1101/2020.04.04.025668 fatcat:i5jii4tynffqjpcjm7mlax5osy

Monopole-Antimonopole Pair With Higher Energy Branch In SU(2) x U(1) Weinberg-Salam Theory [article]

Timothy Tie, Khai-Ming Wong, Dan Zhu
2021 arXiv   pre-print
We investigate the monopole-antimonopole pair solution in the SU(2) x U(1) Weinberg-Salam theory with ϕ-winding number, n=3 for bifurcation phenomena.  ...  These bifurcating solutions behave differently from the vortex ring configuration in SU(2) Yang-Mills-Higgs theory since thery are full vortex-ring.  ...  (2) × U(1) group, D µ is the covariant derivative for the SU(2) group.  ... 
arXiv:2107.03917v1 fatcat:rs7oyj5cgbcpbcjbg53ss4r6qm

Bifurcating Branches of Multiple Charged One-Plus-Half Monopole In SU(2) Yang-Mills-Higgs Theory [article]

Dan Zhu, Khai-Ming Wong, Timothy Tie, Guo-Quan Wong
2021 arXiv   pre-print
In this paper, we study on the one-plus-half monopole configuration in SU(2) Yang-Mills-Higgs theory when the ϕ-winding number, n, runs from 2 to 4 and for a range of Higgs coupling constant, λ_b ≤λ≤ 40  ...  The Lagrangian (1) is gauge invariant and stays unchanged under independent local SU(2) transformations.  ...  Recently MAP, MAC and vortex ring solutions has been constructed in SU(2) × U(1) Weinberg-Salam theory [12] .  ... 
arXiv:2107.04535v1 fatcat:6aalvymxlnhdfjnrbcyqupub3i

Universal quantum computation with optical four-component cat qubits [article]

Daiqin Su, Ish Dhand, Timothy C. Ralph
2021 arXiv   pre-print
We propose a teleportation-based scheme to implement a universal set of quantum gates with a four-component cat code, assisted by appropriate entangled resource states and photon number resolving detection. The four-component cat code features the ability to recover from single photon loss. Here, we propose a concrete procedure to correct the single photon loss, including detecting the single photon loss event and recovering the initial states. By concatenating with standard qubit error
more » ... ng codes, we estimate the loss threshold for fault-tolerant quantum computation and obtain a significant improvement over the two-component cat code.
arXiv:2109.12278v1 fatcat:znybd542mjerfc4pkzajinxys4

On the weak coupling spectrum of N = 2 supersymmetric SU(n) gauge theory

Christophe Fraser, Timothy J. Hollowood
1997 Nuclear Physics B  
The weak coupling spectrum of BPS saturated states of pure N=2 supersymmetric SU(n) gauge theory is investigated.  ... 
doi:10.1016/s0550-3213(97)00054-0 fatcat:5jnnhr7fyjcsfbs26liydvayui

A Constructive Proof of Ky Fan's Generalization of Tucker's Lemma [article]

Timothy Prescott, Francis Edward Su
2003 arXiv   pre-print
In that sense, it serves a similar function in controlling branching as the use of the flag of polytope faces in the constructive proof of the polytopal Sperner lemma of DeLeora-Peterson-Su [3] .  ...  provide new techniques for developing constructive proofs of certain generalized Tucker lemmas (such as the Z p -Tucker lemma of Ziegler [11] or the generalized Tucker's lemma conjectured by Simmons-Su  ... 
arXiv:math/0310444v1 fatcat:2t5fpozxazferao42ksm6434fq

Asymptotic freedom in certain SO(N) and SU(N) models

Martin B. Einhorn, D. R. Timothy Jones
2017 Physical Review D  
We calculate the β-functions for SO(N) and SU(N) gauge theories coupled to adjoint and fundamental scalar representations, correcting long-standing, previous results.  ...  UVFPs for SU (∞). SU (N ), we find several FPs, of which one is UV stable.  ...  Minimum value of bg in the class of SU (N ) models.  ... 
doi:10.1103/physrevd.96.055035 fatcat:63lwvgmnofd73md4hrvo4mmncy

Diet of wild boar Sus scrofa in Western Europe, with particular reference to consumption of agricultural crops

LAURENT SCHLEY, TIMOTHY J. ROPER
2003 Mammal Review  
Keywords: 8Eur/crop damage/damage/diet/food/human-wildlife conflict/Malme/management/ review/Sus scrofa/wild boar Abstract: 1.  ...  Diet of wild boar Sus scrofa in Western Europe, with particular reference to consumption of agricultural crops. Mammal Rev. 33(1): 43-56.  ...  In continental Europe, the wild boar Sus scrofa L. is often associated with crop damage.  ... 
doi:10.1046/j.1365-2907.2003.00010.x fatcat:4trwiuefp5bi5aa2ln4pit6oim
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