Results 21 to 30 of about 25,831 (144)
Nested Witt vectors and their q-deformation
Journal of Algebra, 2007 Let \(N\subset {\mathbb N}\) be a truncation set, i. e. a subset of \({\mathbb N}\) containing every divisor of each of its elements. Let \(Ring\) be the category of commutative rings not necessarily unital and \(gh_N:Ring\rightarrow Ring\) the \(N\)-nested ghost ring functor associating to each ring \(A\) the ring whose underlying set equals \(A^N ...
openaire +3 more sources
Formalizing the ring of Witt vectors [PDF]
Proceedings of the 10th ACM SIGPLAN International Conference on Certified Programs and Proofs, 2021 The ring of Witt vectors $\mathbb{W} R$ over a base ring $R$ is an important tool in algebraic number theory and lies at the foundations of modern $p$-adic Hodge theory. $\mathbb{W} R$ has the interesting property that it constructs a ring of characteristic $0$ out of a ring of characteristic $p > 1$, and it can be used more specifically to ...
Johan Commelin, Robert Y. Lewis
openaire +2 more sources
Lie powers and Witt vectors [PDF]
Journal of Algebraic Combinatorics, 2008 Let \(k\) be a field of characteristic \(p>0\) and \(G\) a group. Suppose that \(G\) has a finite dimensional representation in a space \(V\). Denote by \(L(V)\) the free Lie algebra on \(V\). Then each homogeneous component \(L^n(V)\) is a finite dimensional representation of \(G\). Let \(m\) be a positive integer which is not divisible by \(p\).
Bryant, R. M., Johnson, Marianne
openaire +2 more sources
Periférica, 2017 Roser Calaf Masachs y Miguel Suárez Suárez. Acción educativa en museos. Su calidad desde la evaluación cualitativa. A partir de una reflexión conjunta, se evalúa y valora de manera cualitativa el trabajo educativo en museos, aportando soluciones y ...
Varios autores
doaj +1 more source
Witt vectors and Fermat quotients
Journal of Number Theory, 2008 The Fermat quotient of a number \(n\) with respect to the prime number \(p\) is given by \(q(n) = (n^{p-1}-1)/p\). Elementary properties of the Fermat quotient are here shown to be a consequence of the elementary arithmetic of Witt vectors. Readers should be warned that the symbol \(\mathbb Z_p\), which is used without explanation, stands for \(\mathbb
DI BARTOLO, Alfonso, FALCONE, Giovanni
openaire +3 more sources
, 2022 Our main goal in this paper is to prove results for Witt vectors in the almost category. We finish with an application to almost purity, in particular offering a new proof for rank one valuation rings.
openaire +2 more sources
Advances in Mathematical Physics, 2013 The extended symmetry of the functional of length determined in an affine space K3 of the correlation vectors for homogeneous isotropic turbulence is studied.
V. N. Grebenev +2 more
doaj +1 more source
Universal deformation rings and tame blocks [PDF]
, 2013 Let k be an algebraically closed field of positive characteristic, and let W be the ring of infinite Witt vectors over k. Suppose G is a finite group and B is a block of kG of infinite tame representation type. We find all finitely generated kG-modules V
B. Schaefer +3 more
core +1 more source
A McKay Correspondence in Positive Characteristic
Forum of Mathematics, SigmaWe establish a McKay correspondence for finite and linearly reductive subgroup schemes of ${\mathbf {SL}}_2$ in positive characteristic.
Christian Liedtke
doaj +1 more source
Sustainable Development, EarlyView.ABSTRACT This study examines how home‐ and host‐country institutions jointly shape the impact of foreign direct investment (FDI) on firms' climate action commitments (CAC) in emerging markets. Drawing on New Institutional Economics and Varieties of Capitalism, we conceptualize FDI as a mechanism of institutional transmission through which multinational
Jose Pla‐Barber, David Tobón‐Orozco
wiley +1 more source