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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,051 papers · 148 categories

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48 results for High-rise buildings

Builds geometric structures for algebraic groups over real closed fields.

problem Characterizing and decomposing algebraic groups over specific valued fields.
method Real algebraic geometry to construct and analyze affine buildings.
result Computed stabilizers and obtained group decompositions.

Study Poisson boundaries of building lattices and generalize rigidity results.

problem Understanding Poisson boundaries of building lattices and their rigidity properties.
method Proved Poisson boundaries and used them to generalize rigidity results.
result Generalized rigidity results for morphisms and cocycles from lattices in buildings to groups with negative curvature.

We show that if a homeomorphism between the ideal boundaries of two Fuchsian buildings preserves the combinatorial cross ratio almost everywhere, then it extends to an isomorphism between the Fuchsian buildings. It follows that Mostow rigidity holds for Fuchsian buildings: if a group acts properly and cocompactly on tw…

2004-07-23abs ↗pdf ↗

We describe some buildings related to complex Kac-Moody groups. First we describe the spherical building of SLn(C) (i.e. the projective geometry PG(Cn)) and its Veronese representation. Next we recall the construction of the affine building associated to a discrete valuation on the rational function field C(z)C(z). Then …

2001-09-19abs ↗pdf ↗

Research proves limits on harmonic map orders into Euclidean buildings.

problem Limits on the possible orders of harmonic maps from surfaces to Euclidean buildings.
method Direct analysis of homogeneous maps and related spherical billiards problem.
result The order of harmonic maps is of the form mk\frac mk where kk divides W|W|.

Harmonic maps to Euclidean buildings have rectifiable singular strata.

problem Understanding the structure of singular points for harmonic maps.
method Defining singular strata and proving rectifiability using the rectifiable Reifenberg program.
result Rectifiability of singular strata for harmonic maps into FF-connected complexes.

Automates building structural design with reduced mass and carbon footprint.

problem Time-consuming and laborious manual design process for buildings.
method Formulated building structures as graphs, trained end-to-end pipeline with a differentiable simulator.
result Optimal structural designs comparable to GA, with reduced building mass and carbon footprint.

This research reviews reinforcement learning for optimizing building energy management.

problem Optimizing energy utilization in building management systems.
method Comprehensive review of reinforcement learning applications in building energy management.
result Challenges and future directions in reinforcement learning for building energy management.

This paper constructs and proves the uniqueness of pluriharmonic maps to Euclidean buildings.

problem Existence and uniqueness of pluriharmonic maps to Euclidean buildings.
method Constructs a ρ-equivariant pluriharmonic map with specific asymptotic behavior and proves its uniqueness.
result Uniqueness of pluriharmonic maps to Euclidean buildings.

Machine learning detects building damage in satellite images.

problem Extracting damage information from satellite imagery is slow and labor-intensive.
method Used four convolutional neural network models to detect damaged buildings.
result Models performed well in detecting damaged buildings in the 2010 Haiti earthquake.

We introduce a construction turning some Coxeter and Davis realizations of buildings into systolic complexes. Consequently groups acting geometrically on buildings of triangle types distinct from (2,4,4)(2,4,4), (2,4,5)(2,4,5), (2,5,5)(2,5,5), and various rank 44 types are systolic.

2013-10-21abs ↗pdf ↗

In this paper we introduce, for each closed orientable surface, an analogue of Tits buildings adjusted to investigation of the Torelli group of this surface. It is a simplicial complex with some additional structure. We call this complex with its additional structure the Torelli building of the surface in question. The…

2014-10-23abs ↗pdf ↗

Deep learning outperforms classical methods in categorizing BIM images.

problem Classifying building designs from BIM models.
method Used classical machine learning (HOG + SVM) and deep learning models (pre-trained and custom-designed networks).
result Deep learning models achieve significantly higher accuracy (above 89%) compared to classical methods (57%).

In this article, we discuss the quasiconformal structure of boundaries of right-angled hyperbolic buildings using combinatorial tools. In particular we exhibit some examples of buildings of dimension 3 and 4 whose boundaries satisfy the combinatorial Loewner property. This property is a weak version of the Loewner prop…

2014-11-13abs ↗pdf ↗

The relationship between minimal algebraic Kac-Moody groups and twin buildings is well known as is the relationship between formal completions in one direction and affine buildings. Nevertheless, as the completion of a Kac-Moody group in one direction destroys the opposite BN-pair, there exists no longer a twin buildin…

2010-04-20abs ↗pdf ↗

In this paper we show how to realize all knot (and link) types as C^{2} smooth curves of constant curvature. Our proof is constructive: we build the knots with copies of a fixed finite number of "building blocks" that are particular segments of helices and circles. We use these building blocks to construct all closed b…

2004-03-04abs ↗pdf ↗

Novel probabilistic models forecast residential heating and electricity demand at hourly resolution.

problem Accurate hourly forecasting of residential heating and electricity demand.
method Probabilistic deep learning models trained on gas-heated region data.
result Significant improvement in forecast accuracy compared to NREL's ResStock model.

We generalize the natural cross ratio on the ideal boundary of a rank one symmetric spaces, or even CAT(1)\mathrm{CAT}(-1) space, to higher rank symmetric spaces and (non-locally compact) Euclidean buildings - we obtain vector valued cross ratios defined on simplices of the building at infinity. We show several properties …

2017-01-31abs ↗pdf ↗

Machine learning reduces wind tunnel testing costs for tall buildings.

problem Limited wind tunnel tests fail to fully reveal interference effects of tall buildings.
method Used machine learning techniques, including GANs, to predict pressure coefficients.
result GANs model based on 30% of dataset accurately predicts pressure coefficients under unseen conditions.