Zobrazeno 1 - 10
of 968
pro vyhledávání: '"ANDRES, R. P."'
Autor:
Beck, Matthias, Hanada, Mitsuki, Hlavacek, Max, Lentfer, John, Vindas-Meléndez, Andrés R., Waddle, Katie
We study a refinement of the $q,t$-Catalan numbers introduced by Xin and Zhang (2022, 2023) using tools from polyhedral geometry. These refined $q,t$-Catalan numbers depend on a vector of parameters $\vec{k}$ and the classical $q,t$-Catalan numbers a
Externí odkaz:
http://arxiv.org/abs/2407.21226
The matching polytope of a graph $G$ is the convex hull of the indicator vectors of the matchings on $G$. We characterize the graphs whose associated matching polytopes are Gorenstein, and then prove that all Gorenstein matching polytopes possess the
Externí odkaz:
http://arxiv.org/abs/2407.08820
Polar activity is shown here to induce a progressive local deformation of linear polymer chains, making a clear distinction between head and tail, while the overall chain conformation gets more compact. This breakdown of self-similarity, provoked by
Externí odkaz:
http://arxiv.org/abs/2404.10553
We introduce and study a $q$-version of the chromatic polynomial of a given graph $G=(V,E)$, namely, \[ \chi_G^\lambda(q,n) \ := \sum_{\substack{\text{proper colorings}\\ c\,:\,V\to[n]}} q^{ \sum_{ v \in V } \lambda_v c(v) }, \] where $\lambda \in \m
Externí odkaz:
http://arxiv.org/abs/2403.19573
Autor:
Bayer, Margaret M., Borgwardt, Steffen, Chambers, Teressa, Daugherty, Spencer, Dawkins, Aleyah, Deligeorgaki, Danai, Liao, Hsin-Chieh, McAllister, Tyrrell, Morrison, Angela, Nelson, Garrett, Vindas-Meléndez, Andrés R.
For $\mathbf{b}=(b_1,\dots,b_n)\in \mathbb{Z}_{>0}^n$, a $\mathbf{b}$-parking function is defined to be a sequence $(\beta_1,\dots,\beta_n)$ of positive integers whose nondecreasing rearrangement $\beta'_1\leq \beta'_2\leq \cdots \leq \beta'_n$ satis
Externí odkaz:
http://arxiv.org/abs/2403.07387
Autor:
Martínez-Ramos, M. Mijaíl, Majari, Parisa, Cruz-Hernández, Andres R., Pharasi, Hirdesh K., Vyas, Manan
We analyze correlation structures in financial markets by coarse graining the Pearson correlation matrices according to market sectors to obtain Guhr matrices using Guhr's correlation method according to Ref. [P. Rinn {\it et. al.}, Europhysics Lette
Externí odkaz:
http://arxiv.org/abs/2402.05364
We introduce a new PAC-Bayes oracle bound for unbounded losses. This result can be understood as a PAC-Bayesian version of the Cram\'er-Chernoff bound. The proof technique relies on controlling the tails of certain random variables involving the Cram
Externí odkaz:
http://arxiv.org/abs/2401.01148
A barcode is a finite multiset of intervals on the real line. Jaramillo-Rodriguez (2023) previously defined a map from the space of barcodes with a fixed number of bars to a set of multipermutations, which presented new combinatorial invariants on th
Externí odkaz:
http://arxiv.org/abs/2312.08705
Panhandle matroids are a specific lattice-path matroid corresponding to panhandle-shaped Ferrers diagrams. Their matroid polytopes are the subpolytopes carved from a hypersimplex to form matroid polytopes of paving matroids. It has been an active are
Externí odkaz:
http://arxiv.org/abs/2311.01640
The cold posterior effect (CPE) (Wenzel et al., 2020) in Bayesian deep learning shows that, for posteriors with a temperature $T<1$, the resulting posterior predictive could have better performances than the Bayesian posterior ($T=1$). As the Bayesia
Externí odkaz:
http://arxiv.org/abs/2310.01189