@article{8504,
  abstract     = {In this paper we present a surprising example of a Cr unimodal map of an interval f:I→I whose number of periodic points Pn(f)=∣{x∈I:fnx=x}∣ grows faster than any ahead given sequence along a subsequence nk=3k. This example also shows that ‘non-flatness’ of critical points is necessary for the Martens–de Melo–van Strien theorem [M. Martens, W. de Melo and S. van Strien. Julia–Fatou–Sullivan theory for real one-dimensional dynamics. Acta Math.168(3–4) (1992), 273–318] to hold.},
  author       = {Kaloshin, Vadim and KOZLOVSKI, O. S.},
  issn         = {0143-3857},
  journal      = {Ergodic Theory and Dynamical Systems},
  keywords     = {Applied Mathematics, General Mathematics},
  number       = {1},
  pages        = {159--165},
  publisher    = {Cambridge University Press},
  title        = {{A Cr unimodal map with an arbitrary fast growth of the number of periodic points}},
  doi          = {10.1017/s0143385710000817},
  volume       = {32},
  year         = {2012},
}

@article{8514,
  abstract     = {We study the extent to which the Hausdorff dimension of a compact subset of an infinite-dimensional Banach space is affected by a typical mapping into a finite-dimensional space. It is possible that the dimension drops under all such mappings, but the amount by which it typically drops is controlled by the ‘thickness exponent’ of the set, which was defined by Hunt and Kaloshin (Nonlinearity12 (1999), 1263–1275). More precisely, let $X$ be a compact subset of a Banach space $B$ with thickness exponent $\tau$ and Hausdorff dimension $d$. Let $M$ be any subspace of the (locally) Lipschitz functions from $B$ to $\mathbb{R}^{m}$ that contains the space of bounded linear functions. We prove that for almost every (in the sense of prevalence) function $f \in M$, the Hausdorff dimension of $f(X)$ is at least $\min\{ m, d / (1 + \tau) \}$. We also prove an analogous result for a certain part of the dimension spectra of Borel probability measures supported on $X$. The factor $1 / (1 + \tau)$ can be improved to $1 / (1 + \tau / 2)$ if $B$ is a Hilbert space. Since dimension cannot increase under a (locally) Lipschitz function, these theorems become dimension preservation results when $\tau = 0$. We conjecture that many of the attractors associated with the evolution equations of mathematical physics have thickness exponent zero. We also discuss the sharpness of our results in the case $\tau > 0$.},
  author       = {OTT, WILLIAM and HUNT, BRIAN and Kaloshin, Vadim},
  issn         = {0143-3857},
  journal      = {Ergodic Theory and Dynamical Systems},
  number       = {3},
  pages        = {869--891},
  publisher    = {Cambridge University Press},
  title        = {{The effect of projections on fractal sets and measures in Banach spaces}},
  doi          = {10.1017/s0143385705000714},
  volume       = {26},
  year         = {2006},
}