Results 1 to 10 of about 138 (44)

EXPLORING PROSPECTIVE ELEMENTARY MATHEMATICS TEACHERS’ KNOWLEDGE: A FOCUS ON FUNCTIONAL THINKING [PDF]

open access: yes, 2021
The importance of students being acquainted with algebraic ideas before secondary education has been revealed in the research literature. It is therefore essential that prospective elementary teachers (PTs) be prepared to instill an early algebra ...
Henriques, Ana   +2 more
core   +1 more source

On representation varieties of Artin groups, projective arrangements and the fundamental groups of smooth complex algebraic varieties [PDF]

open access: yes, 1997
We prove that for any affine variety S defined over Q there exist Shephard and Artin groups G such that a Zariski open subset U of S is biregular isomorphic to a Zariski open subset of the character variety Hom(G, PO(3))//PO(3). The subset U contains all
Kapovich, Michael, Millson, John
core   +4 more sources

Equational reasoning: A systematic review of the Cuisenaire–Gattegno approach [PDF]

open access: yes, 2022
The Cuisenaire–Gattegno (Cui) approach to early mathematics uses color coded rods of unit increment lengths embedded in a systematic curriculum designed to guide learners as young as age five from exploration of integers and ratio through to formal ...
Bruce D. McCandliss   +3 more
core   +1 more source

`Third' Quantization of Vacuum Einstein Gravity and Free Yang-Mills Theories [PDF]

open access: yes, 2006
Based on the algebraico-categorical (:sheaf-theoretic and sheaf cohomological) conceptual and technical machinery of Abstract Differential Geometry, a new, genuinely background spacetime manifold independent, field quantization scenario for vacuum ...
A. Ashtekar   +39 more
core   +6 more sources

Skeletons and tropicalizations [PDF]

open access: yes, 2016
Let $K$ be a complete, algebraically closed non-archimedean field with ring of integers $K^\circ$ and let $X$ be a $K$-variety. We associate to the data of a strictly semistable $K^\circ$-model $\mathscr X$ of $X$ plus a suitable horizontal divisor $H$ a
Gubler, Walter   +2 more
core   +1 more source

On representation varieties of 3-manifold groups [PDF]

open access: yes, 2015
We prove universality theorems ("Murphy's Laws") for representation schemes of fundamental groups of closed 3-dimensional manifolds. We show that germs of SL(2,C)-representation schemes of such groups are essentially the same as germs of schemes of over ...
Kapovich, Michael, Millson, John J.
core   +1 more source

On the density of second order differential equations without algebraic solutions on P2 [PDF]

open access: yes, 2011
We prove that a generic second order diferential equation in the projective plane has no algebraic solutions when the bidegree is big enough.
Falla Luza, M.
core   +3 more sources

About Hrushovski and Loeser's work on the homotopy type of Berkovich spaces [PDF]

open access: yes, 2015
Those are the notes of the two talks I gave in april 2013 in St-John (US Virgin Islands) during the Simons Symposium on non-Archimedean and tropical geometry.
Ducros, Antoine
core   +1 more source

The Tate conjecture for K3 surfaces over finite fields [PDF]

open access: yes, 2012
Artin's conjecture states that supersingular K3 surfaces over finite fields have Picard number 22. In this paper, we prove Artin's conjecture over fields of characteristic p>3.
A. Beauville   +32 more
core   +3 more sources

New symplectic V-manifolds of dimension four via the relative compactified Prymian [PDF]

open access: yes, 2007
Three new examples of 4-dimensional irreducible symplectic V-manifolds are constructed. Two of them are relative compactified Prymians of a family of genus-3 curves with involution, and the third one is obtained from a Prymian by Mukai's flop.
Markushevich, D., Tikhomirov, A. S.
core   +2 more sources

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