Tootfinder

SDP bounds on the stability number via ADMM and intermediate levels of the Lasserre hierarchy
Lennart Sinjorgo, Renata Sotirov, Juan C. Vera
https://arxiv.org/abs/2506.08648

SDP bounds on the stability number via ADMM and intermediate levels of the Lasserre hierarchy
We consider the Lasserre hierarchy for computing bounds on the stability number of graphs. The semidefinite programs (SDPs) arising from this hierarchy involve large matrix variables and many linear constraints, which makes them difficult to solve using interior-point methods. We propose solving these SDPs using the alternating direction method of multipliers (ADMM). When the second level of the Lasserre hierarchy for a given graph is intractable for the ADMM, we consider an intermediate-level …

Smile asymptotic for Bachelier Implied Volatility
Roberto Baviera, Michele Domenico Massaria
https://arxiv.org/abs/2506.08067 https://

Smile asymptotic for Bachelier Implied Volatility
We investigate the asymptotic behaviour of the Implied Volatility in the Bachelier setting, extending the framework introduced by Benaim and Friz for the Black-Scholes setting. Exploiting the theory of regular variation, we derive explicit expressions for the Bachelier Implied Volatility in the wings of the smile, linking these to the tail behaviour of the underlying's returns' distribution. Furthermore, we establish a direct connection between the analyticity strip of the returns' characterist…

Traveling supersolid stripe patterns in spin-orbit-coupled Bose-Einstein condensates
G. I. Martone, G. V. Shlyapnikov
https://arxiv.org/abs/2506.07322 http…

Traveling supersolid stripe patterns in spin-orbit-coupled Bose-Einstein condensates
We consider a traveling supersolid stripe pattern in a spin-orbit-coupled Bose gas. This configuration is associated with an unequal occupation of the two single-particle energy minima, giving rise to a chemical potential difference that sets the fringe velocity. Unlike stationary stripes, the moving pattern is spin-polarized, with decreasing contrast as momentum increases, eventually leading to stripe melting and transition to the uniform plane-wave phase. The Bogoliubov spectrum of the moving…

LLMs are starving for knowledge graphs. Raphael Troncy was pointing out that many LLM company crawlers are constantly visiting their KGs. Some crawlers even perform explicit SPARQL queries on the KGs.
#knowledgegraphs #eswc2025

Langsam habe ich den Eindruck, die babylonische Sprachverwirrung war vielleicht keine Strafe Gottes, sondern vor allem eine Schutzmaßnahme für die Weltbevölkerung …
#EverythingEverywhereAllAtOnce #Viral

This https://arxiv.org/abs/2501.11694 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Gravitational Wave Propagation in a Geometric Condensate in Starobinsky Cosmology
In this paper we propose a new paradigm for cosmology: a time dependent scalar condensate background originated from the quadratic $(R + αR^2)$ Starobinski model, where $R$ is the Ricci scalar and $α$ the coupling constant. In weak gravity limit the system decouples into a conventional graviton and a higher derivative scalar. It was shown earlier through works from our group, \cite{ssg,sg,us}, that the latter can sustain an oscillatory lowest energy configuration or a {\it{Geometric Condensat…

This https://arxiv.org/abs/2502.10613 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Function recovery and optimal sampling in the presence of nonuniform evaluation costs
We consider recovering a function $f : D \rightarrow \mathbb{C}$ in an $n$-dimensional linear subspace $\mathcal{P}$ from i.i.d. pointwise samples via (weighted) least-squares estimators. Different from most works, we assume the cost of evaluating $f$ is potentially nonuniform, and governed by a cost function $c : D \rightarrow (0,\infty)$ which may blow up at certain points. We therefore strive to choose the sampling measure in a way that minimizes the expected total cost. We provide a recover…

🇺🇦 #NowPlaying on BBCRadio3's #ClassicalMixtape
Astor Piazzolla, Alexander Sitkovetsky, Ksenija Sidorova & Claudio Constantini:
🎵 Yo Soy Maria (Maria de Buenos Aires)
#AstorPiazzolla #AlexanderSitkovetsky #KsenijaSidorova #ClaudioConstantini

Series A, Episode 10 - Breakdown
CALLY: So?
BLAKE: So on the flight deck he tried to kill ME. The limiter didn't even slow him down.
CALLY: Well, among my people such things are considered barbarous.
https://blake.torpidity.net/m/110/32 B7B6

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

Series A, Episode 10 - Breakdown
CALLY: So?
BLAKE: So on the flight deck he tried to kill ME. The limiter didn't even slow him down.
CALLY: Well, among my people such things are considered barbarous.
https://blake.torpidity.net/m/110/32 B7B6

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.