208,547 research outputs found
Zoning New York City to Provide Low and Moderate Income Housing - Can Commercial Developers Be Made to Help?
Lower income New York City residents are faced with a housing emergency. Concurrently, commercial and luxury residential development is expanding. New York is considering adopting an approach to the housing shortage which has been taken in several other cities. The plan advocates amendment of the City\u27s zoning ordinance to require developers of commercial and luxury residential projects to provide the City with lower income housing units. This Note examines the proposed requirement that commercial developers provide lower income housing units. It addresses the question of the validity of such a requirement in the context of New York City\u27s statutory authority to use zoning ordinances to place conditions upon proposed development projects. By analogy to the limitations on this authority, this Note recommends a shift in emphasis to bring such a program into compliance with New York law
Zoning New York City to Provide Low and Moderate Income Housing - Can Commercial Developers Be Made to Help?
Lower income New York City residents are faced with a housing emergency. Concurrently, commercial and luxury residential development is expanding. New York is considering adopting an approach to the housing shortage which has been taken in several other cities. The plan advocates amendment of the City\u27s zoning ordinance to require developers of commercial and luxury residential projects to provide the City with lower income housing units. This Note examines the proposed requirement that commercial developers provide lower income housing units. It addresses the question of the validity of such a requirement in the context of New York City\u27s statutory authority to use zoning ordinances to place conditions upon proposed development projects. By analogy to the limitations on this authority, this Note recommends a shift in emphasis to bring such a program into compliance with New York law
Asymptotic scaling from strong coupling in 2-d lattice chiral models
Two dimensional lattice chiral models are investigate by a strong
coupling analysis. Strong coupling expansion turns out to be predictive for the
evaluation of continuum physical quantities, to the point of showing asymptotic
scaling (within 5\%).Comment: 3 pages, PostScript file, contribution to conference LATTICE '9
A small and non-simple geometric transition
Following notation introduced in the recent paper \cite{Rdef}, this paper is
aimed to present in detail an example of a "small" geometric transition which
is not a "simple" one i.e. a deformation of a conifold transition. This is
realized by means of a detailed analysis of the Kuranishi space of a Namikawa
cuspidal fiber product, which in particular improves the conclusion of
Y.~Namikawa in Remark 2.8 and Example 1.11 of \cite{N}. The physical interest
of this example is presenting a geometric transition which can't be immediately
explained as a massive black hole condensation to a massless one, as described
by A.~Strominger \cite{Strominger95}.Comment: 22 pages. v2: final version to appear in Mathematical Physics,
Analysis and Geometry. Minor changes: title, abstract, result in Remark 3
emphasized by Theorem 5, as suggested by a referee. Some typos correcte
Book review of \u27The Bon Religion of Tibet: The Iconography of a Living Tradition\u27 by Per Kværne
Integrable systems and holomorphic curves
In this paper we attempt a self-contained approach to infinite dimensional
Hamiltonian systems appearing from holomorphic curve counting in Gromov-Witten
theory. It consists of two parts. The first one is basically a survey of
Dubrovin's approach to bihamiltonian tau-symmetric systems and their relation
with Frobenius manifolds. We will mainly focus on the dispersionless case, with
just some hints on Dubrovin's reconstruction of the dispersive tail. The second
part deals with the relation of such systems to rational Gromov-Witten and
Symplectic Field Theory. We will use Symplectic Field theory of
as a language for the Gromov-Witten theory of a closed symplectic manifold .
Such language is more natural from the integrable systems viewpoint. We will
show how the integrable system arising from Symplectic Field Theory of
coincides with the one associated to the Frobenius structure of
the quantum cohomology of .Comment: Partly material from a working group on integrable systems organized
by O. Fabert, D. Zvonkine and the author at the MSRI - Berkeley in the Fall
semester 2009. Corrected some mistake
Integrability, quantization and moduli spaces of curves
This paper has the purpose of presenting in an organic way a new approach to
integrable (1+1)-dimensional field systems and their systematic quantization
emerging from intersection theory of the moduli space of stable algebraic
curves and, in particular, cohomological field theories, Hodge classes and
double ramification cycles. This methods are alternative to the traditional
Witten-Kontsevich framework and its generalizations by Dubrovin and Zhang and,
among other advantages, have the merit of encompassing quantum integrable
systems. Most of this material originates from an ongoing collaboration with A.
Buryak, B. Dubrovin and J. Gu\'er\'e
Book review of \u27Popular Buddhist Texts from Nepal: Narratives and Rituals of Newar Buddhism\u27 by Todd T. Lewis
Large time behavior for the heat equation on Carnot groups
We first generalize a decomposition of functions on Carnot groups as linear
combinations of the Dirac delta and some of its derivatives, where the weights
are the moments of the function.
We then use the decomposition to describe the large time behavior of
solutions of the hypoelliptic heat equation on Carnot groups. The solution is
decomposed as a weighted sum of the hypoelliptic fundamental kernel and its
derivatives, the coefficients being the moments of the initial datum
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