Tootfinder

And just to be 100% clear, #LosAngeles is nailing it. Massive peaceful protests are great. That's absolutely unequivocally a good thing. So are burning cop cars. Diversity of tactics is critical.
Escalating radically at a protest with kids and grandmas is a shit thing to do. Don't do that unless it's absolutely necessary. Having kids and grandmas out protesting is important. Having them peacefully block vehicles with their bodies or occupy ICE facilitates *is* a strong thing. That is real. That's not virtue signaling, it does something... And sometimes that isn't enough. Sometimes things *need* to escalate to save people.
Diversity is good. Don't break the diversity of tactics *either way*. #LA seems to be doing a pretty good job right now or holding that balance. I hope to see more of that in every city.

Nonlinear phase synchronization and the role of spacing in shell models
Lorenzo Manfredini, \"Ozg\"ur D. G\"urcan
https://arxiv.org/abs/2507.14142

Nonlinear phase synchronization and the role of spacing in shell models
A shell model can be considered as a chain of triads, where each triad can be interpreted as a nonlinear oscillator that can be mapped to a spinning top. Investigating the relation between phase dynamics and intermittency in a such a chain of nonlinear oscillators, it is found that synchronization is linked to increased energy transfer. In particular, the results provide evidence that the observed systematic increase of intermittency, as the shell spacing is decreased, is associated with strong…

Last week, we continued our #ISE2025 lecture on distributional semantics with the introduction of neural language models (NLMs) and compared them to traditional statistical n-gram models.
Benefits of NLMs:
- Capturing Long-Range Dependencies
- Computational and Statistical Tractability
- Improved Generalisation
- Higher Accuracy
@…

Fast and efficient long-distance quantum state transfer in long-range spin-$\frac{1}{2}$ models
F. Faria, C. C. Nelmes, T. J. G. Apollaro, T. P. Spiller, I. D'Amico
https://arxiv.org/abs/2508.08182

Fast and efficient long-distance quantum state transfer in long-range spin-$\frac{1}{2}$ models
Quantum state transfer is investigated beyond the nearest-neighbour coupling scheme in long spin-$\frac{1}{2}$ linear chains. Exploiting the properties of the next-nearest neighbour Hamiltonian's dispersion relation, it is shown that with minimal engineering, i.e., an on-site magnetic field on the two end sites and only a few symmetrically-modified end inter-site couplings, an average transfer fidelity above $99\%$ can be achieved. To leading order, the required time scales linearly with the le…

Generalized Riemann-Hilbert-Birkhoff Decomposition and a New Class of Higher Grading Integrable Hierarchies
H. Aratyn, C. P. Constantinidis, J. F. Gomes, T. C. Santiago, A. H. Zimerman
https://arxiv.org/abs/2507.10744

Generalized Riemann-Hilbert-Birkhoff Decomposition and a New Class of Higher Grading Integrable Hierarchies
We propose a generalized Riemann-Hilbert-Birkhoff decomposition that expands the standard integrable hierarchy formalism in two fundamental ways: it allows for integer powers of Lax matrix components in the flow equations to be increased as compared to conventional models, and it incorporates constant non-zero vacuum (background) solutions. Two additional parameters control these features. The first one defines the grade of a semisimple element that underpins the algebraic construction of the…

Rethinking Self-Replication: Detecting Distributed Selfhood in the Outlier Cellular Automaton
Arend Hintze, Clifford Bohm
https://arxiv.org/abs/2508.08047 https://

Rethinking Self-Replication: Detecting Distributed Selfhood in the Outlier Cellular Automaton
Spontaneous self-replication in cellular automata has long been considered rare, with most known examples requiring careful design or artificial initialization. In this paper, we present formal, causal evidence that such replication can emerge unassisted -- and that it can do so in a distributed, multi-component form. Building on prior work identifying complex dynamics in the Outlier rule, we introduce a data-driven framework that reconstructs the full causal ancestry of patterns in a determini…

This https://arxiv.org/abs/2505.09487 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nli…

The N-species integrable Volterra system as a maximally superintegrable Hamiltonian system
The results presented in this paper are a natural development of those described in the paper {\it The Volterra Integrable case. Novel analytical and numerical results} (OCNMP Vol.4 (2024) pp 188-211), where the authors reconsidered the integrable case of the Hamiltonian $N$-species Lotka-Volterra system, introduced by Vito Volterra in 1937. There, an alternative approach for constructing the integrals of motion has been proposed, and compared with the old Volterra approach. Here we go beyond, …

Synchronous Propagation of Periodic Signals in Feedforward Networks of Standard Model Neurons
Ian Stewart, David Wood
https://arxiv.org/abs/2506.11776 http…

Synchronous Propagation of Periodic Signals in Feedforward Networks of Standard Model Neurons
Periodic signals propagating along chains are common in biology, for example in locomotion and peristalsis, and are also of interest for continuum robots. In previous work we constructed such networks as 'feedforward lifts' of a central pattern generator (CPG). When the CPG undergoes periodic oscillations, created by Hopf bifurcation or other mechanisms, it can then transmit periodic signals along one or more feedforward chains in a synchronous or phase-synchronous manner. We proved necessary a…

Nonlinear Effects in a Weakly Nonholonomic Systems With a Small Degrees of Freedom
Alexander S. Kuleshov, Nikita M. Vidov
https://arxiv.org/abs/2508.10803 https://

Nonlinear Effects in a Weakly Nonholonomic Systems With a Small Degrees of Freedom
In 1986 Ya.V. Tatarinov presented the foundations of the theory of weakly nonholonomic systems. Mechanical systems with nonholonomic constraints depending on a small parameter are considered. It is assumed that for zero value of this parameter the constraints of such a system become integrable; i.e., in this case, we have a family of holonomic systems depending on several arbitrary integration constants. We will assume that these holonomic systems are completely integrable Hamiltonian systems. …