Results 41 to 50 of about 17,413 (115)

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

Which singular tangent bundles are isomorphic?

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract Logarithmic and b$ b$‐tangent bundles provide a versatile framework for addressing singularities in geometry. Introduced by Deligne and Melrose, these modified bundles resolve singularities by reframing singular vector fields as well‐behaved sections of these singular bundles.
Eva Miranda, Pablo Nicolás
wiley   +1 more source

Entrywise transforms preserving matrix positivity and nonpositivity

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract We characterize real and complex functions which, when applied entrywise to square matrices, yield a positive definite matrix if and only if the original matrix is positive definite. We refer to these transformations as sign preservers. Compared to the classical work on entrywise preservers by Schoenberg and others, we completely resolve this ...
Dominique Guillot, Himanshu Gupta, Prateek Kumar Vishwakarma, Chi Hoi Yip   +3 more
wiley   +1 more source

Exactness and the topology of the space of invariant random equivalence relations

Proceedings of the London Mathematical Society, Volume 132, Issue 5, May 2026.
Abstract We characterize exactness of a countable group Γ$\Gamma$ in terms of invariant random equivalence relations (IREs) on Γ$\Gamma$. Specifically, we show that Γ$\Gamma$ is exact if and only if every weak limit of finite IREs is an amenable IRE.
Héctor Jardón‐Sánchez, Sam Mellick, Antoine Poulin, Konrad Wróbel   +3 more
wiley   +1 more source

Information Inequalities via Submodularity and a Problem in Extremal Graph Theory. [PDF]

Entropy (Basel), 2022
Sason I.
europepmc   +1 more source

A Lie Bracket for the Momentum Kernel. [PDF]

Commun Math Phys, 2023
Frost H, Mafra CR, Mason L.
europepmc   +1 more source

ASPECTS OF TOPOLOGICAL APPROACHES FOR DATA SCIENCE. [PDF]

Found Data Sci, 2022
Grbić J, Wu J, Xia K, Wei GW.
europepmc   +1 more source

Higher Algebraic K-Theory of Causality. [PDF]

Entropy (Basel)
Mahadevan S.
europepmc   +1 more source

Creating and Using Minimizer Sketches in Computational Genomics. [PDF]

J Comput Biol, 2023
Zheng H, Marçais G, Kingsford C.
europepmc   +1 more source

Growth functions of periodic space tessellations. [PDF]

Acta Crystallogr A Found Adv
Naskręcki B, Malinowski J, Dauter Z, Jaskolski M.   +3 more
europepmc   +1 more source