I was in a meeting at work today and my boss (55M) made a joke about "hitting the floppy disk" to save a document. Everyone over 35 laughed. Everyone under 30 looked confused. Then he pointed at the...
This note aims to bring attention to a simple class of discrete dynamical systems exhibiting some complex behaviour. Each of these systems is defined as a self-mapping of the unit square and is obtained by coupling two families of self-mappings of th...
Gigger taught was named the Gigger Building in his honor. An intersection in Pacoima, CA adjacent to San Fernando High School was designated Gigger Square
113°33′47″E / 22.14082°N 113.56310°E / 22.14082; 113.56310 The Macau New Urban Zone (Chinese: 澳門新城區; Portuguese: Novos Aterros Urbanos de Macau) is a 7.3-square-kilometre
squiral - square spiral (⭐ 7)
It is shown that the alpha^2-dynamo of Magnetohydrodynamics, the hydrodynamic Squire equation as well as an interpolation model of PT-symmetric Quantum Mechanics are closely related as spectral problems in Krein spaces. For the alpha^2-dynamo and t...
squiral - square spiral (⭐ 12)
https://www.forbes.com/sites/paultassi/2024/05/13/square-enix-is-done-with-playstation-exclusivity-after-profit-drop/?sh=52e1da920b60 If this is true, I think what makes me more angry is the fact tha...
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A 2D metallic phononic crystal (PnC), which is fabricated by drilling periodic holes in a suspended niobium (Nb) film, is repeatedly cooled and warmed in the temperature range of 2--300 K. During the first five temperature cycles, the resistance of t...
first held in London at Odeon Luxe Leicester Square Cinema, then the Royal Opera House from 2007 to 2016. The event was held at the Royal Albert Hall
A new, computationally- and statistically-efficient algorithm, the Fast $χ^2$ algorithm, can find a periodic signal with harmonic content in irregularly-sampled data with non-uniform errors. The algorithm calculates the minimized $χ^2$ as a funct...
Update: This work reproduces an earlier result of Peck, which the author was initially unaware of. The method of the proof is essentially the same as the original work of Peck. There are no new results. We show that the sum of squares of difference...
We consider Lambek's invariants $\text{Ker}$ and $\text{Im}$ for commutative squares in Grandis homological categories. We prove that Nomura's null sequences exist in such categories and find sufficienct conditions for their exactness. We also prove...
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We prove that for bounded and convex domains in three dimensions, the Maxwell constants are bounded from below and above by Friedrichs' and Poincaré's constants. In other words, the second Maxwell eigenvalues lie between the square roots of the seco...
secret square posing as a swinger". The insight, "Power is the ultimate aphrodisiac", is widely attributed to him, although Kissinger was paraphrasing Napoleon
We investigate the impact of mathematics on improving neighbourhood integration and perception of security. The main square of Chamilpa colony in Cuernavaca, México is take as study case. This city is featured by its precarious recreational and leis...
We review optimization-based approaches to smoothing nonlinear dynamical systems. These approaches leverage the fact that the Extended Kalman Filter and corresponding smoother can be framed as the Gauss-Newton method for a nonlinear least squares max...
We study how a two-dimensional square sheet of droplets evolves to the preferred triangular lattice. The rearrangement can be induced either by an impurity seed for flat sheets or by curving the sheet. We analyze the propagation of transformation fro...