Results 91 to 100 of about 330 (211)

A Note on Surjective Inverse Systems

, 2007
Given an upward directed set $I$ we consider surjective $I$-inverse systems $\{X_\al,f_{\al\be}:X_\be\lra X_\al| \al\leq\be\in I\}$, namely those inverse systems that have all $f_{\al\be}$ surjective. A number of properties of $I$-inverse systems have been investigated; such are the Mittag-Leffler condition, investigated by Grothendieck and flabby and ...
openaire   +3 more sources

Surjective factorization of holomorphic mappings

, 2000
8 ...
González, Manuel, Gutiérrez, Joaquín M.   +1 more
openaire   +3 more sources

On the positivity and integrality of coefficients of mirror maps

Bulletin of the London Mathematical Society, Volume 58, Issue 8, August 2026.
Abstract We present natural conjectural generalisations of the ‘positivity and integrality of mirror maps’ phenomenon, encompassing the mirror maps appearing in the Batyrev–Borisov construction of mirror Calabi–Yau complete intersections in Fano toric varieties as a special case.
Sophie Bleau, Nick Sheridan
wiley   +1 more source

A Hodge Theory-Driven Quantum Mapping Between Calabi-Yau Manifolds and Nuclear Topology: First-Principles Derivation and Experimental Verification [PDF]

Physics Access
This study adopts Hodge theory as a rigorous mathematical framework to construct a quantitative mapping system between the high-dimensional topological invariants of CalabiYau (CY) manifolds and nuclear physics parameters, thereby establishing a strict ...
Yang Ou, Wenming Sun
doaj   +1 more source

Framed cohomological Hall algebras and cohomological stable envelopes. [PDF]

Lett Math Phys, 2023
Botta TM.
europepmc   +1 more source

On Nielsen equivalence classes of two‐element generators of mapping class groups

Bulletin of the London Mathematical Society, Volume 58, Issue 8, August 2026.
Abstract We show that there are infinitely many Nielsen equivalence classes of the mapping class group of a closed oriented surface of genus at least eight.
Susumu Hirose, Naoyuki Monden
wiley   +1 more source

Boundedness, existence and uniqueness results for coupled gradient dependent elliptic systems with nonlinear boundary condition

Advances in Nonlinear Analysis
In this paper, we study coupled elliptic systems with gradient dependent right-hand sides and nonlinear boundary conditions, where the left-hand sides are driven by so-called double phase operators.
Frisch Michal Maria, Winkert Patrick
doaj   +1 more source

A birational description of the minimal exponent

Journal of the London Mathematical Society, Volume 114, Issue 2, August 2026.
Abstract We give a description of the minimal exponent of a hypersurface using higher direct images of suitably twisted sheaves of log forms on a log resolution.
Qianyu Chen, Mircea Mustaţă
wiley   +1 more source

General p-curl systems and duality mappings on Sobolev spaces for Maxwell equations

Electronic Journal of Differential Equations, 2020
We study a general p-curl system arising from a model of type-II superconductors. We show several trace theorems that hold on either a Lipschitz domain with small Lipschitz constant or on a C^{1,1} domain.
Dhruba R. Adhikari, Eric Stachura
doaj  

Cancellation laws for surjective cardinals

Annals of Pure and Applied Logic, 1984
For cardinal numbers x and y, write \(x\leq^*y\) if whenever \(| X| =x\) and \(| Y| =y\) there is a map from a subset of Y onto X, and write \(x=^*y\) for \(x\leq^*y\) and \(y\leq^*x\). The \(=^*\)-equivalence classes are called surjective cardinals. This paper contains a number of interesting results concerning surjective cardinals in ZF set theory ...
openaire   +2 more sources