Top- and bottom-heavy vertical velocity structures: physical modes of layered atmospheric models
Fiaz Ahmed, J. David Neelin
https://arxiv.org/abs/2509.15166 https://
Does the Grothendieck ring of varieties contain nilpotent elements?
Anna Bot, Alessio Cangini, Immanuel van Santen
https://arxiv.org/abs/2509.10464 https://
Macroscopic coherence and vorticity in room-temperature polariton condensate confined in a self-assembled perovskite microcavity
Martin Montagnac, Yesenia A. Garc\'ia Jomaso, Emiliano Robledo Ibarra, Rodrigo S\'anchez-Mart\'inez, Moroni Santiago Garc\'ia, C\'esar L. Ord\'o\~nez-Romero, Hugo A. Lara-Garc\'ia, Arturo Camacho-Guardian, Giuseppe Pirruccio
OK, this is more what I was expecting from my Sweet Peas; I think there's a couple of different varieties in this really high grade LIdl pack of sweet peas. Next year I should get some from better #gardening supplier.
Partially open Pink rose and rosebuds. Mary and Joseph Retreat Center, Rancho Palos Verdes, California, USA. August, 2025. #ranchopalosverdes #garden #rosegarden
White Echinacea Flowers in the Prairie Garden in Front of the Vet Research Tower of which the facade is visible
#ithaca #cornell #photography
Improved Bounds on Ultra-Log Concavity of the Grothendieck Class of $\overline{\mathcal{M}_{0,n}}$
Eduardo Nascimento
https://arxiv.org/abs/2509.11805 https://
Abelian motives and Shimura varieties in nonzero characteristic
James S. Milne
https://arxiv.org/abs/2508.09972 https://arxiv.org/pdf/2508.09972
Homogeneous locally nilpotent derivations on trinomial varieties
Kirill Rassolov
https://arxiv.org/abs/2509.08491 https://arxiv.org/pdf/2509.08491