#birkhoff
Zhiyao Fang, Junxiang Qi, Qi Liu: A Fermat--Torricelli convex-hull characterization of inner-product spaces via Birkhoff--James orthogonality https://arxiv.org/abs/2611.09226 https://arxiv.org/pdf/2611.09226 https://arxiv.org/html/2611.09226
November 9, 2026 at 6:47 AM
🔄 Updated Arxiv Paper

Title: Theoretical and Computational Advances in Birkhoff Pseudospectral Transcription for Aerospace Optimal Control
Authors: Riccardo Minnozzi, Marco Sagliano

Read more: https://arxiv.org/abs/2610.17842
October 28, 2026 at 8:02 AM
Jin Dong, Stephan Stieberger
Collinear Gluons from Gravity: Poincar\'e-Birkhoff-Witt Decomposition and Twisted Intersections
https://arxiv.org/abs/2610.30235
October 25, 2026 at 8:34 AM
Geometrically, it's the difference between a map of R^n to the simplex and a map of R^(nxn) to the Birkhoff polytopes.
October 22, 2026 at 6:36 PM
Collinear Gluons from Gravity: Poincaré-Birkhoff-Witt Decomposition and Twisted Intersections
https://arxiv.org/pdf/2610.30235
Jin Dong, Stephan Stieberger.
https://arxiv.org/abs/2610.30235
arXiv abstract link
arxiv.org
October 23, 2026 at 9:32 AM
Jin Dong, Stephan Stieberger: Collinear Gluons from Gravity: Poincar\'e-Birkhoff-Witt Decomposition and Twisted Intersections https://arxiv.org/abs/2610.30235 https://arxiv.org/pdf/2610.30235 https://arxiv.org/html/2610.30235
October 23, 2026 at 6:54 AM
🔄 Updated Arxiv Paper

Title: Theoretical and Computational Advances in Birkhoff Pseudospectral Transcription for Aerospace Optimal Control
Authors: Riccardo Minnozzi, Marco Sagliano

Read more: https://arxiv.org/abs/2610.17842
October 21, 2026 at 8:02 AM
Andr\'as Cz\'egel: Exact minimum Birkhoff decompositions of doubly stochastic matrices with finite precision https://arxiv.org/abs/2610.25837 https://arxiv.org/pdf/2610.25837 https://arxiv.org/html/2610.25837
October 20, 2026 at 6:41 AM
🔄 Updated Arxiv Paper

Title: Birkhoff interpolation models for optimization with some available derivatives
Authors: Jeffrey Larson, Matt Menickelly, Evan Toler

Read more: https://arxiv.org/abs/2605.28503
October 15, 2026 at 8:02 AM
Riccardo Minnozzi, Marco Sagliano: Theoretical and Computational Advances in Birkhoff Pseudospectral Transcription for Aerospace Optimal Control https://arxiv.org/abs/2610.17842 https://arxiv.org/pdf/2610.17842 https://arxiv.org/html/2610.17842
October 14, 2026 at 6:51 AM
📚 New Arxiv Paper

Title: Adaptive Node Distribution via Probability Density Functions for Birkhoff Pseudospectral Trajectory Optimisation
Authors: Andrian A. Yasintus, Xiaofeng Wu

Read more: https://arxiv.org/abs/2610.12827
October 12, 2026 at 8:02 AM
Andrian A. Yasintus, Xiaofeng Wu: Adaptive Node Distribution via Probability Density Functions for Birkhoff Pseudospectral Trajectory Optimisation https://arxiv.org/abs/2610.12827 https://arxiv.org/pdf/2610.12827 https://arxiv.org/html/2610.12827
October 12, 2026 at 6:49 AM
Zhiyao Fang, Qi Liu: Banach space, Birkhoff--James orthogonality, James constant, von Neumann--Jordan constant https://arxiv.org/abs/2610.13360 https://arxiv.org/pdf/2610.13360 https://arxiv.org/html/2610.13360
October 12, 2026 at 6:47 AM
A scalable quantum-assisted approach to complex optimization problems combines partitioned QAOA sampling on IBM quantum processors with classical optimization and feasibility repair, outperforming simulated annealing and random sampling.
arxiv.org/abs/2610.10772
Scaling Quantum Optimization to the Thousand-Qubit Scale with Distributed Quantum Sampling
The Minimum Birkhoff Decomposition (MBD) seeks a sparse weighted sum of matchings and is a challenging optimization problem with applications in network scheduling and energy trading. We scale a quant...
arxiv.org
October 9, 2026 at 7:52 PM
#305 Birkhoff Conjecture (Near-Boundary Continuous Invariant Foliation) — FULL CLAIM
#306 Secret key from all entangled states — FULL CLAIM
#311 Mahler Conjecture on the Volume Product of a Convex Body — FULL CLAIM
#321 Finiteness of Finitely Presented Periodic Groups — FULL CLAIM
October 7, 2026 at 12:02 AM
Xiaoyu Li, Zhizhou Sha, Chiwun Yang: The Birkhoff Geometry of Manifold-Constrained Hyper-Connections: Two Channels, Vertex Viscosity, and Sinkhorn as a Retraction https://arxiv.org/abs/2610.06653 https://arxiv.org/pdf/2610.06653 https://arxiv.org/html/2610.06653
October 6, 2026 at 6:48 AM
Shunchang Li, Zixuan Gao, Yujian Jiao, Li-Lian Wang
Well-Conditioned Birkhoff-Collocation Methods for Elliptic-type Problems in Multiple Dimensions
https://arxiv.org/abs/2609.39353
October 1, 2026 at 11:04 AM
Shunchang Li, Zixuan Gao, Yujian Jiao, Li-Lian Wang: Well-Conditioned Birkhoff-Collocation Methods for Elliptic-type Problems in Multiple Dimensions https://arxiv.org/abs/2609.39353 https://arxiv.org/pdf/2609.39353 https://arxiv.org/html/2609.39353
October 1, 2026 at 6:49 AM
Zhiyao Fang, Ying Xu, Qi Liu, Zhaohui Gu, Yongjin Li: James-type constants for Birkhoff--James orthogonality and approximate isosceles https://arxiv.org/abs/2609.37502 https://arxiv.org/pdf/2609.37502 https://arxiv.org/html/2609.37502
September 30, 2026 at 6:47 AM
Note: Πₙ/𝔖ₙ is the Birkhoff/Ziegler order on integer partitions, not the more commonly studied dominance partial order.
September 26, 2026 at 7:32 PM
Skander Charfi, Ibrahim Trifa: A Multidimensional Birkhoff Theorem for some $C^0$ Lagrangians https://arxiv.org/abs/2609.28373 https://arxiv.org/pdf/2609.28373 https://arxiv.org/html/2609.28373
September 24, 2026 at 6:50 AM
Jia Du, Tingting Hu, Wenwen Zhang, Qi Liu: A Birkhoff-Orthogonal Dehghan--Rooin Type Constant in Banach Spaces https://arxiv.org/abs/2609.27754 https://arxiv.org/pdf/2609.27754 https://arxiv.org/html/2609.27754
September 24, 2026 at 6:48 AM
Professor Vadim Kaloshin from @istaresearch.bsky.social and his colleagues in the SPERIG project are tackling the Birkhoff conjecture which could open up new insights into the behaviour of dynamical systems.

issuu.com/euresearcher...

#Research #BirkhoffConjecture #MathematicalBilliards
September 23, 2026 at 7:18 AM
Xinru Jiang, Guoce Xin, Chen Zhang, Yueming Zhong: Exact Ehrhart Series of Birkhoff Polytopes via Constant Terms and Finite-Field Evaluation https://arxiv.org/abs/2609.25863 https://arxiv.org/pdf/2609.25863 https://arxiv.org/html/2609.25863
September 23, 2026 at 6:47 AM
Renate Künasts Kanzlei:

- verteidigt syrische Milizionäre (Folter und Mord!)

- ist Hauskanzlei des Abou-Chaker Clans (Hansgeorg Birkhoff)

- verteidigte im Labelle + Mykonos Prozess arabische Terroristen (Künasts Mann Rüdiger Portius)

- verteidigte die KaDeWe-Räuber (Al-Zein-Clan)
September 22, 2026 at 9:17 PM