English
Related papers

Related papers: Remarks on the intersection of filters

200 papers

The paper is devoted to the linearization of the non linear Signorini functional in the incompressible case. The limit functional, in the sense of Gamma-convergence, may coincide with the expected one only in some particular cases.

Mathematical Physics · Physics 2024-07-30 Edoardo Mainini , Danilo Percivale , Robertus van der Putten

This paper gives new solutions to the problem: 'Can we construct monohedral tilings of the disk such that a neighbourhood of the origin has trivial intersection with at least one tile?'

Metric Geometry · Mathematics 2016-04-29 Joel Haddley , Stephen Worsley

We define a countable family of sequences of points in the unit square: the {\it $LS$-sequences of points \`a la Halton}. They reveal a very strange and interesting behaviour, as well as resonance phenomena, for which we have not found an…

Number Theory · Mathematics 2012-11-14 Ingrid Carbone , Maria Rita Iacò , Aljoša Volčič

Suppose that lambda is the successor of a singular cardinal mu whose cofinality is an uncountable cardinal kappa. We give a sufficient condition that the club filter of lambda concentrating on the points of cofinality kappa is not…

Logic · Mathematics 2008-02-03 Mirna Džamonja , Saharon Shelah

We point out one of the differences between rapid ultrafilters and Q-points: Rapid ultrafilters may have empty intersection with van der Waerden ideal, whereas every Q-point has a non-empty intersection with van der Waerden ideal. Assuming…

Logic · Mathematics 2010-06-01 Jana Flašková

We show that the detection of geometric intersection in an arbitrary representation of the mapping class group of surface implies the injectivity of that representation up to center, and vice versa. As an application, we discuss the…

Geometric Topology · Mathematics 2016-12-13 Yasushi Kasahara

We present an infinite family of formulas with reversal whose avoidability index is bounded between 4 and 5, and we show that several members of the family have avoidability index 5. This family is particularly interesting due to its size…

Combinatorics · Mathematics 2018-02-14 James Currie , Lucas Mol , Narad Rampersad

A Magnus subgroup of a one-relator group is the free subgroup freely generated by a proper subset of the generators. Two such subgroups can intersect in the obvious way or in a larger, exceptional way. The condition of non-exceptional…

Group Theory · Mathematics 2010-12-14 Martin Edjvet , James Howie

Let $N$ be a finite set and $\mathcal{F}$, an intersection-closed family of subsets. Frankl conjectured that there always exists an element in $N$ which is contained in at most half the number of sets in $\mathcal{F}$ unless $\mathcal{F}…

Combinatorics · Mathematics 2025-01-08 Rainer Schrader

W.Ebeling and S.M.Gusein-Zade have started to look at multi-index Newton filtrations for hypersurface singularities. In this paper we pass to complete intersections. One motivation is the possibility to compare with the "classical" Newton…

Algebraic Geometry · Mathematics 2011-08-31 Helmut A. Hamm

We explore a family of nested recurrence relations with arbitrary levels of nesting, which have an interpretation in terms of fixed points of morphisms over a countably infinite alphabet. Recurrences in this family are related to a number…

Combinatorics · Mathematics 2013-07-02 Marcel Celaya , Frank Ruskey

We study convergence almost everywhere of sequences of Schr\"odinger means. We also replace sequences by uncountable sets.

Analysis of PDEs · Mathematics 2019-05-15 Sjölin , Per , Strömberg , Jan-Olov

This paper provides a non-standard analogue of Bezout's theorem. This is acheived by showing that, in all characteristics, the notion of Zariski multiplicity coincides with intersection multiplicity when we consider the full families of…

Algebraic Geometry · Mathematics 2007-05-23 Tristram de Piro

It is known that the variety of pairs of n x n commuting upper triangular matrices isn't a complete intersection for infinitely many values of n; we show that there exists m such that this happens if and only if n > m. We also show that m <…

Algebraic Geometry · Mathematics 2008-03-18 Roberta Basili

We consider families of k-subsets of the standard n-set. Two families F, G are said to be cross-intersecting if every member of F has non-empty intersection with every member of G. A family is called non-trivial if the intersection of all…

Combinatorics · Mathematics 2022-09-07 Peter Frankl

Under MA we prove that for the ideal $\cal I$ of thin sets on $\omega$ and for any ordinal $\gamma \leq \omega_1$ there is an ${\cal I}$-ultrafilter (in the sense of Baumgartner), which belongs to the class ${\cal P}_{\gamma}$ of…

Logic · Mathematics 2012-01-10 Michał Machura , Andrzej Starosolski

The work concerns the nonlinear filtering problem for a class of multiscale McKean-Vlasov stochastic systems. First of all, by a Poisson equation we prove that the solution of the slow part for a multiscale system weakly converges to the…

Probability · Mathematics 2023-11-27 Huijie Qiao , Wanlin Wei

It is proved that there exists an (omega-1,omega-1) Souslin gap in the Boolean algebra (L(nu)/Fin,subseteq^*_ae) for every nonseparable measure nu. Thus a Souslin, also known as destructible, (omega-1,omega-1) gap in P(N)/Fin can always be…

Logic · Mathematics 2007-10-30 James Hirschorn

A family $\mathcal{F}$ of $k$-subsets of an $n$-set is called $s$-almost $t$-intersecting if each member is $t$-disjoint with at most $s$ members. In this paper, we prove that, if $\left|\mathcal{F}\right|$ is maximum, then $\mathcal{F}$…

Combinatorics · Mathematics 2026-01-13 Dehai Liu , Kaishun Wang , Tian Yao

We prove that the consistency of the existence of a Dowker filter at $\kappa^+$ along with $2^\kappa=\kappa^+$ where $\kappa$ is regular and uncountable. Using Magidor forcing we also prove the consistency of the existence of a Dowker…

Logic · Mathematics 2020-06-25 Shimon Garti , Yair Hayut
‹ Prev 1 4 5 6 7 8 10 Next ›