Results 101 to 110 of about 209,957 (232)

Enhancing synchrotron radiation micro‐CT images using deep learning: an application of Noise2Inverse on bone imaging

open access: yesJournal of Synchrotron Radiation, Volume 32, Issue 3, Page 690-699, May 2025.
The use of Noise2Inverse in low‐dose in situ synchrotron micro‐computed tomography experiments shows high feasibility and promise for biological tissues such as bone. With appropriate scanning parameters and experimental setup, features in bone such as lacunae volume and shape as well as mineralization can be reasonably preserved while reducing ...
Yoshihiro Obata   +3 more
wiley   +1 more source

Burnside groups and orbifold invariants of birational maps [PDF]

open access: yesarXiv, 2022
We construct new invariants of equivariant birational isomorphisms taking values in equivariant Burnside groups.
arxiv  

Excited Young diagrams and equivariant Schubert calculus [PDF]

open access: yes, 2007
We describe the torus-equivariant cohomology ring of isotropic Grassmannians by using a localization map to the torus fixed points. We present two types of formulas for equivariant Schubert classes of these homogeneous spaces.
Ikeda, Takeshi, Naruse, Hiroshi
core  

Asymptotic behavior of Moncrief Lines in constant curvature space‐times

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 5, Page 1347-1359, May 2025.
Abstract We study the asymptotic behavior of Moncrief lines on 2+1$2+1$ maximal globally hyperbolic spatially compact space‐time M$M$ of nonnegative constant curvature. We show that when the unique geodesic lamination associated with M$M$ is either maximal uniquely ergodic or simplicial, the Moncrief line converges, as time goes to zero, to a unique ...
Mehdi Belraouti   +2 more
wiley   +1 more source

The geometric Hopf invariant and double points

open access: yes, 2010
The geometric Hopf invariant of a stable map F is a stable Z_2-equivariant map h(F) such that the stable Z_2-equivariant homotopy class of h(F) is the primary obstruction to F being homotopic to an unstable map.
Crabb, Michael, Ranicki, Andrew
core   +3 more sources

Remarks on τ$\tau$‐tilted versions of the second Brauer–Thrall conjecture

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 5, Page 1568-1583, May 2025.
Abstract In this short note, we state a stable and a τ$\tau$‐reduced version of the second Brauer–Thrall conjecture. The former is a slight strengthening of a brick version of the second Brauer–Thrall conjecture raised by Mousavand and Schroll–Treffinger–Valdivieso.
Calvin Pfeifer
wiley   +1 more source

Equivariant cobordism of schemes [PDF]

open access: yes, 2010
We study the equivariant cobordism theory of schemes for action of linear algebraic groups. We compare the equivariant cobordism theory for the action of a linear algebraic groups with similar groups for the action of tori and deduce some consequences ...
Krishna, Amalendu
core  

A note on cables and the involutive concordance invariants

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 5, Page 1593-1604, May 2025.
Abstract We prove a formula for the involutive concordance invariants of the cabled knots in terms of those of the companion knot and the pattern knot. As a consequence, we show that any iterated cable of a knot with parameters of the form (odd,1) is not smoothly slice as long as either of the involutive concordance invariants of the knot is nonzero ...
Kristen Hendricks, Abhishek Mallick
wiley   +1 more source

On equivariant $p$-harmonic maps

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 1998
In the first section of this paper we study the Dirichlet problem for equivariant (rotationally symmetric) p -harmonic maps from the Euclidean ball B^m to the closed upper ellipsoid E^m_+ (b)
openaire   +3 more sources

Local character expansions and asymptotic cones over finite fields

open access: yesProceedings of the London Mathematical Society, Volume 130, Issue 5, May 2025.
Abstract We generalise Gelfand–Graev characters to R/Z$\mathbb {R}/\mathbb {Z}$‐graded Lie algebras and lift them to produce new test functions to probe the local character expansion in positive depth. We show that these test functions are well adapted to compute the leading terms of the local character expansion and relate their determination to the ...
Dan Ciubotaru, Emile Okada
wiley   +1 more source

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