Search Results - "Rogers, Luke G."
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The resolvent kernel for PCF self-similar fractals
Published in Transactions of the American Mathematical Society (01-08-2010)“…For the Laplacian \Delta defined on a p.c.f. self-similar fractal, we give an explicit formula for the resolvent kernel of the Laplacian with Dirichlet…”
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Smooth bumps, a Borel theorem and partitions of smooth functions on p.c.f. fractals
Published in Transactions of the American Mathematical Society (24-11-2008)“…We provide two methods for constructing smooth bump functions and for smoothly cutting off smooth functions on fractals, one using a probabilistic approach and…”
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3
Gradients of Laplacian eigenfunctions on the Sierpinski gasket
Published in Proceedings of the American Mathematical Society (01-02-2009)“…We use spectral decimation to provide formulae for computing the harmonic tangents and gradients of Laplacian eigenfunctions on the Sierpinski Gasket. These…”
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Estimates for the resolvent kernel of the Laplacian on p.c.f. self-similar fractals and blowups
Published in Transactions of the American Mathematical Society (01-03-2012)“…A central issue in studying resistance forms on post-critically finite self-similar sets is the behavior of the resolvent of the Laplacian operator. The kernel…”
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5
The strong maximum principle for Schrödinger operators on fractals
Published in Demonstratio mathematica (01-01-2019)“…We prove a strong maximum principle for Schrödinger operators defined on a class of postcritically finite fractal sets and their blowups without boundary. Our…”
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Distribution theory on P.C.F. fractals
Published in Journal d'analyse mathématique (Jerusalem) (01-10-2010)“…We construct a theory of distributions in the setting of analysis on post-critically finite self-similar fractals, and on fractafolds and products based on…”
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Embedding convex geometries and a bound on convex dimension
Published in Discrete mathematics (01-05-2017)“…The notion of an abstract convex geometry, due to Edelman and Jamison (1984), offers an abstraction of the standard notion of convexity in a linear…”
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Derivations and Dirichlet forms on fractals
Published in Journal of functional analysis (15-10-2012)“…We study derivations and Fredholm modules on metric spaces with a local regular conservative Dirichlet form. In particular, on finitely ramified fractals, we…”
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Degree-independent Sobolev extension on locally uniform domains
Published in Journal of functional analysis (15-06-2006)“…We consider the problem of constructing extensions L k p ( Ω ) → L k p ( R n ) , where L k p is the Sobolev space of functions with k derivatives in L p and Ω…”
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Unimodular Fourier multipliers for modulation spaces
Published in Journal of functional analysis (15-05-2007)“…We investigate the boundedness of unimodular Fourier multipliers on modulation spaces. Surprisingly, the multipliers with general symbol e i | ξ | α , where α…”
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ESTIMATES FOR THE RESOLVENT KERNEL OF THE LAPLACIAN ON P. C. F. SELF-SIMILAR FRACTALS AND BLOWUPS
Published in Transactions of the American Mathematical Society (01-03-2012)“…A central issue in studying resistance forms on post-critically finite self-similar sets is the behavior of the resolvent of the Laplacian operator. The kernel…”
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SOME SPECTRAL PROPERTIES OF PSEUDO-DIFFERENTIAL OPERATORS ON THE SIERPIŃSKI GASKET
Published in Proceedings of the American Mathematical Society (01-05-2017)“…We prove versions of the strong Szegö limit theorem for certain classes of pseudo-differential operators defined on the Sierpiński gasket. Our results use in a…”
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13
Geodesic interpolation on Sierpiński gaskets
Published in Journal of fractal geometry (01-01-2021)“…We study the analogue of a convex interpolant of two sets on Sierpiński gaskets and an associated notion of measure transport. The structure of a natural…”
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14
Szegö Limit Theorems on the Sierpiński Gasket
Published in The Journal of fourier analysis and applications (01-06-2010)“…We use the existence of localized eigenfunctions of the Laplacian on the Sierpiński gasket (SG) to formulate and prove analogues of the strong Szegö limit…”
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15
Smooth Bumps, a Borel Theorem and Partitions of Smooth Functions on P. C. F. Fractals
Published in Transactions of the American Mathematical Society (01-04-2009)“…We provide two methods for constructing smooth bump functions and for smoothly cutting off smooth functions on fractals, one using a probabilistic approach and…”
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16
On a theorem of Grigor'yan, Hu and Lau
Published 13-05-2016“…We refine a result of Grigor'yan, Hu and Lau to give a moment condition on a heat kernel which characterizes the critical exponent at which a family of Besov…”
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Some spectral properties of pseudo-differential operators on the Sierpi\'nski gasket
Published in Proceedings of the American Mathematical Society (01-05-2017)“…We prove versions of the strong Szegö limit theorem for certain classes of pseudo-differential operators defined on the Sierpiński gasket. Our results use in a…”
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18
Spectra of three-peg Hanoi towers graphs
Published 06-07-2021“…We consider the relationship between the Laplacians on two sequences of planar graphs, one from the theory of self-similar groups and one from analysis on…”
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Sobolev Algebra Counterexamples
Published 13-05-2016“…In the Euclidean setting the Sobolev spaces $W^{\alpha,p}\cap L^\infty$ are algebras for the pointwise product when $\alpha>0$ and $p\in(1,\infty)$. This…”
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Resistance Scaling on $4N$-Carpets
Published 10-11-2020“…The $4N$ carpets are a class of infinitely ramified self-similar fractals with a large group of symmetries. For a $4N$-carpet $F$, let $\{F_n\}_{n \geq 0}$ be…”
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