Results 41 to 50 of about 21,780 (149)

Terminal singularities, Milnor numbers, and matter in F-theory [PDF]

open access: yesJournal of Geometry and Physics, 2018
47 pages, 6 figures, 12 ...
Arras, Philipp   +2 more
openaire   +4 more sources

Families of singular algebraic varieties that are rationally elliptic spaces

open access: yesMathematische Nachrichten, Volume 299, Issue 1, Page 214-223, January 2026.
Abstract We discuss families of hypersurfaces with isolated singularities in projective space with the property that the sum of the ranks of the rational homotopy and the homology groups is finite. They represent infinitely many distinct homotopy types with all hypersurfaces having a nef canonical or anti‐canonical class.
A. Libgober
wiley   +1 more source

On higher Jacobians, Laplace equations, and Lefschetz properties

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract Let A$A$ be a standard graded Artinian K$\mathbb {K}$‐algebra over a field of characteristic zero. We prove that the failure of strong Lefschetz property (SLP) for A$A$ is equivalent to the osculating defect of a certain rational variety.
Charles Almeida   +2 more
wiley   +1 more source

On Fico's Lemmata and the homotopy type of certain gyrations

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract We undertake to determine the homotopy type of gyrations of sphere products and of connected sums, thereby generalising results known in earlier literature as ‘Fico's Lemmata’ which underpin gyrations in their original formulation from geometric topology.
Sebastian Chenery
wiley   +1 more source

The complex gradient inequality with parameter [PDF]

open access: yes, 2014
We prove that given a holomorphic family of holomorphic functions with isolated singularities at zero and constant Milnor number, it is possible to obtain the gradient inequality with a uniform exponent.Comment: A remark was added at the end and some ...
Denkowski, Maciej P.
core  

Fibered ribbon pretzels

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract We classify fibered ribbon pretzel knots up to mutation. The classification is complete, except perhaps for members of Lecuona's “exceptional” family of Lecuona [Algebr. Geom. Topol. 15 (2015), no. 4, 2133–2173]. The result is obtained by combining lattice embedding techniques with Gabai's classification of fibered pretzel knots, and ...
Ana G. Lecuona, Andy Wand
wiley   +1 more source

A Lê-Greuel type formula for the image Milnor number [PDF]

open access: yesHokkaido Mathematical Journal, 2019
Accepted in Hokkaido Mathematical ...
J. J. NUÑO-BALLESTEROS   +1 more
openaire   +4 more sources

C.T.C. Wall's 1964 articles on 4‐manifolds

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract I survey C. T. C. Wall's influential papers, ‘Diffeomorphisms of 4‐manifolds’ and ‘On simply‐connected 4‐manifolds’, published in 1964 on pp. 131–149 of volume 39 of the Journal of the London Mathematical Society.
Mark Powell
wiley   +1 more source

Milnor numbers, spanning trees, and the Alexander–Conway polynomial

open access: yesAdvances in Mathematics, 2003
We study relations between the Alexander-Conway polynomial $\nabla_L$ and Milnor higher linking numbers of links from the point of view of finite-type (Vassiliev) invariants. We give a formula for the first non-vanishing coefficient of $\nabla_L$ of an m-component link L all of whose Milnor numbers $ _{i_1... i_p}$ vanish for $p\le n$. We express this
Masbaum, Gregor, Vaintrob, Arkady
openaire   +3 more sources

Theta divisors and permutohedra

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract We establish an intriguing relation of the smooth theta divisor Θn$\Theta ^n$ with permutohedron Πn$\Pi ^n$ and the corresponding toric variety XΠn$X_\Pi ^n$. In particular, we show that the generalised Todd genus of the theta divisor Θn$\Theta ^n$ coincides with h$h$‐polynomial of permutohedron Πn$\Pi ^n$ and thus is different from the same ...
V. M. Buchstaber, A. P. Veselov
wiley   +1 more source

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