Results 81 to 90 of about 1,223,570 (139)

Cartwright–Sturmfels Hilbert schemes

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract Let S$S$ be the Cox ring of a product of r$r$ projective spaces. In this paper, we study the Cartwright–Sturmfels Hilbert schemes of S$S$, which are multigraded Hilbert schemes that parameterize only radical ideals. Our main result shows that these Hilbert schemes are always smooth and irreducible if the Picard rank r$r$ is at most 2.
Ritvik Ramkumar, Alessio Sammartano
wiley   +1 more source

Multiplicative irreducibility of shifted multiplicative subgroups

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract In a recent breakthrough, Kalmynin resolved conjectures of Lev–Sonn and Sárközy on additive decompositions of multiplicative subgroups of prime fields. In this paper, inspired by a related conjecture of Sárközy, we prove multiplicative analogues of Kalmynin's results. We show that for every proper multiplicative subgroup G$G$, the shifted set (
Seoyoung Kim, Chi Hoi Yip, Semin Yoo
wiley   +1 more source

Effective length‐projection bounds for hyperbolic 3‐manifolds diffeomorphic to S×R$S\times \mathbb {R}$

open access: yesJournal of Topology, Volume 19, Issue 3, September 2026.
Abstract We give a formula with explicit constants relating the subsurface projection dY(ν−,ν+)$d_Y(\nu ^-,\nu ^+)$ of the end invariants ν−,ν+$\nu ^-,\nu ^+$ of a hyperbolic 3‐manifold Q$Q$ diffeomorphic to S×R$S\times \mathbb {R}$ and the length of the geodesic representative in Q$Q$ of the multicurve ∂Y$\partial Y$.
Gabriele Viaggi
wiley   +1 more source

Combinatorics, Automata and Number Theory

open access: yes, 2010
editorial reviewedThis collaborative volume presents trends arising from the fruitful interaction between the themes of combinatorics on words, automata and formal language theory, and number theory.

core   +1 more source

Students' perspectives on the nature of mathematics [PDF]

open access: yes, 2006
This paper reports on one small component of a much larger study that explored the perspectives of students towards mathematics learning. Students were asked “What do you think maths is all about?” Some students responded in terms of mathematical content.
Taylor, Merilyn   +3 more
core   +1 more source

Maori preservice primary teachers’ responses to mathematics investigations [PDF]

open access: yes, 2006
There has been concern for some years about the low mathematics achievement of Maori students in New Zealand. This case study reports on the responses of 18 Maori preservice teachers to investigative approaches to learning mathematics during their ...
Hāwera, Ngārewa
core   +1 more source

Lattice path combinatorics and applications

open access: yes, 2019
Recent methods used in lattice path combinatorics and various related branches of enumerative combinatorics are grouped together and presented in this volume, together with relevant applications.
Andrews, George   +2 more
core   +1 more source

Combinatorics, Words and Symbolic Dynamics

open access: yes, 2016
Internationally recognised researchers look at developing trends in combinatorics with applications in the study of words and in symbolic dynamics. They explain the important concepts, providing a clear exposition of some recent results, and emphasise ...

core   +1 more source

Seventh European Conference on Combinatorics, Graph Theory and Applications

open access: yes, 2013
In the tradition of EuroComb'01 (Barcelona), Eurocomb'03 (Prague), EuroComb'05 (Berlin), Eurocomb'07 (Seville), Eurocomb'09 (Bordeaux), and Eurocomb'11 (Budapest), this volume covers recent advances in combinatorics and graph theory including ...
Nešetřil, Jaroslav, Pellegrini, Marco
core   +1 more source

New Applications of the Polynomial Method to Problems in Combinatorics

open access: yes, 2016
Presented on October 13, 2016 at the Skiles Building, Georgia Tech.Ernest Croot is a Professor in the School of Mathematics at Georgia Tech.Runtime: 51:26 minutesErnest Croot will discuss some new applications of the polynomial method to some classical ...
Croot, Ernest
core  

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