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Challenges in estimation, uncertainty quantification and elicitation for pandemic modelling (2022)
Journal Article
Swallow, B., Birrell, P., Blake, J., Burgman, M., Challenor, P., Coffeng, L. E., …Vernon, I. (2022). Challenges in estimation, uncertainty quantification and elicitation for pandemic modelling. Epidemics, 38, https://doi.org/10.1016/j.epidem.2022.100547

The estimation of parameters and model structure for informing infectious disease response has become a focal point of the recent pandemic. However, it has also highlighted a plethora of challenges remaining in the fast and robust extraction of infor... Read More about Challenges in estimation, uncertainty quantification and elicitation for pandemic modelling.

Quantitative analysis of phase transitions in two-dimensional XY models using persistent homology (2022)
Journal Article
Sale, N., Giansiracusa, J., & Lucini, B. (2022). Quantitative analysis of phase transitions in two-dimensional XY models using persistent homology. Physical Review E, 105(2), https://doi.org/10.1103/physreve.105.024121

We use persistent homology and persistence images as an observable of three different variants of the two-dimensional XY model in order to identify and study their phase transitions. We examine models with the classical XY action, a topological latti... Read More about Quantitative analysis of phase transitions in two-dimensional XY models using persistent homology.

Assessing association between paternal smoking status and child malnutrition in Albania: An application of ordinal regression model (2022)
Journal Article
Talukder, A., Hasan, M. M., & Asikunnaby. (2022). Assessing association between paternal smoking status and child malnutrition in Albania: An application of ordinal regression model. Human nutrition & metabolism, 27, https://doi.org/10.1016/j.hnm.2022.200143

Background: In this study, an attempt has been made to seek out the impact of paternal smoking status over child malnutrition in Albania. Methods: For analysis purposes, data were extracted from Albania Demographic and Health Survey (ADHS), 2017/18.... Read More about Assessing association between paternal smoking status and child malnutrition in Albania: An application of ordinal regression model.

New anomalies, TQFTs, and confinement in bosonic chiral gauge theories (2022)
Journal Article
Anber, M. M., Hong, S., & Son, M. (2022). New anomalies, TQFTs, and confinement in bosonic chiral gauge theories. Journal of High Energy Physics, 2022(2), Article 62. https://doi.org/10.1007/jhep02%282022%29062

We study a class of 4-dimensional SU(N) chiral gauge theories with fermions in the 2-index symmetric and antisymmetric representations and classify their infrared phases. The choice N = 4ℤ corresponds to gauging the fermion number and makes the theor... Read More about New anomalies, TQFTs, and confinement in bosonic chiral gauge theories.

Bakry-Émery curvature on graphs as an eigenvalue problem (2022)
Journal Article
Cushing, D., Kamtue, S., Liu, S., & Peyerimhoff, N. (2022). Bakry-Émery curvature on graphs as an eigenvalue problem. Calculus of Variations and Partial Differential Equations, 61, Article 62. https://doi.org/10.1007/s00526-021-02179-z

In this paper, we reformulate the Bakry-Émery curvature on a weighted graph in terms of the smallest eigenvalue of a rank one perturbation of the so-called curvature matrix using Schur complement. This new viewpoint allows us to show various curvatur... Read More about Bakry-Émery curvature on graphs as an eigenvalue problem.

Integrable deformations of sigma models (2022)
Journal Article
Hoare, B. (2022). Integrable deformations of sigma models. Journal of Physics A: Mathematical and Theoretical, 55(9), Article 093001. https://doi.org/10.1088/1751-8121/ac4a1e

In this pedagogical review we introduce systematic approaches to deforming integrable two-dimensional sigma models. We use the integrable principal chiral model and the conformal Wess–Zumino–Witten model as our starting points and explore their Yang–... Read More about Integrable deformations of sigma models.

Relativistic hydrodynamics with the parity anomaly (2022)
Journal Article
Poovuttikul, N. (2022). Relativistic hydrodynamics with the parity anomaly. Journal of High Energy Physics, 2022(2), Article 18. https://doi.org/10.1007/jhep02%282022%29018

We consider the hydrodynamic regime of a 2+1 dimensions QFT with the parity anomaly. Beyond the known constraints from positivity of entropy production, we show that the anomaly inflow mechanism, from a corresponding bulk SPT phase, together with the... Read More about Relativistic hydrodynamics with the parity anomaly.

Conformal manifolds and 3d mirrors of (Dn, Dm) theories (2022)
Journal Article
Carta, F., Giacomelli, S., Mekareeya, N., & Mininno, A. (2022). Conformal manifolds and 3d mirrors of (Dn, Dm) theories. Journal of High Energy Physics, 2022(2), https://doi.org/10.1007/jhep02%282022%29014

The Argyres-Douglas (AD) theories of type (Dn, Dm), realized by type IIB geometrical engineering on a single hypersurface singularity, are studied. We analyze their conformal manifolds and propose the 3d mirror theories of all theories in this class... Read More about Conformal manifolds and 3d mirrors of (Dn, Dm) theories.

Pricing exotic options in the incomplete market: an imprecise probability method (2022)
Journal Article
He, T., Coolen, F., & Coolen-Maturi, T. (2022). Pricing exotic options in the incomplete market: an imprecise probability method. Applied Stochastic Models in Business and Industry, 38(3), 422-440. https://doi.org/10.1002/asmb.2668

This paper considers a novel exotic option pricing method for incomplete markets. Nonparametric Predictive Inference (NPI) is applied to the option pricing procedure based on the binomial tree model allowing the method to evaluate exotic options with... Read More about Pricing exotic options in the incomplete market: an imprecise probability method.