Zobrazeno 1 - 10
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pro vyhledávání: '"Spivak A"'
We augment the `QUAsi-symmetric Stellarator Repository' (QUASR) to include vacuum field stellarators with quasihelical symmetry using a globalized optimization workflow. The database now has almost 370,000 quasisaxisymmetry and quasihelically symmetr
Externí odkaz:
http://arxiv.org/abs/2409.04826
Accurate classification of weather conditions in images is essential for enhancing the performance of object detection and classification models under varying weather conditions. This paper presents a comprehensive study on classifying weather condit
Externí odkaz:
http://arxiv.org/abs/2409.00821
This paper has two purposes. The first is to extend the theory of linearly distributive categories by considering the structures that emerge in a special case: the normal duoidal category $(\mathsf{Poly} ,\mathcal{y}, \otimes, \triangleleft )$ of pol
Externí odkaz:
http://arxiv.org/abs/2407.01849
Autor:
Shapiro, Brandon T., Spivak, David I.
We show that the construction due to Leinster and Weber of a generalized Lawvere theory for a familially representable monad on a (co)presheaf category, and the associated ``nerve'' functor from monad algebras to (co)presheaves, have an elegant categ
Externí odkaz:
http://arxiv.org/abs/2405.13157
In this article we study microwave absorption in superconductors in the presence of a vortex lattice. We show that in addition to the conventional absorption mechanism associated with the vortex core motion, there is another mechanism of microwave ab
Externí odkaz:
http://arxiv.org/abs/2404.16998
Autor:
Libkind, Sophie, Spivak, David I.
Interviews run on people, programs run on operating systems, voting schemes run on voters, games run on players. Each of these is an example of the abstraction pattern runs on matter. Pattern determines the decision tree that governs how a situation
Externí odkaz:
http://arxiv.org/abs/2404.16321
Organizing physics has been a long-standing preoccupation of applied category theory, going back at least to Lawvere. We contribute to this research thread by noticing that Hamiltonian mechanics and gradient descent depend crucially on a consistent c
Externí odkaz:
http://arxiv.org/abs/2404.16140
Publikováno v:
In 2022 International Joint Conference on Neural Networks (IJCNN) (pp. 1-8). IEEE
Psychometric assessment instruments aid clinicians by providing methods of assessing the future risk of adverse events such as aggression. Existing machine learning approaches have treated this as a classification problem, predicting the probability
Externí odkaz:
http://arxiv.org/abs/2312.01029
Autor:
Niu, Nelson, Spivak, David I.
This monograph is a study of the category of polynomial endofunctors on the category of sets and its applications to modeling interaction protocols and dynamical systems. We assume basic categorical background and build the categorical theory from th
Externí odkaz:
http://arxiv.org/abs/2312.00990
Autor:
Dzyublik, A. Ya., Spivak, V. Yu.
The absorption cross section of M\"{o}ssbauer radiation in magnetic liquids is calculated, taking into consideration both translational and rotational Brownian motion of magnetic nanoparticles. Stochastic reversals of their magnetization are also reg
Externí odkaz:
http://arxiv.org/abs/2310.19599