What's it like for Josh Spiegel to be ordered to stay at home during the coronavirus crisis? You might think it would be a dream come true for him. It's actually quite the opposite.

Mayor Young has suggested that the youth of the city should put their guns down and gloves up to settle their disputes in a boxing ring.

A :target gallery with no browser window jump and no cycling through the images when using the browser 'back' button.

Traumatic brain injury (TBI) is a leading cause of death and disability. Older adults are more likely than younger individuals to sustain TBIs and less likely to survive them. TBI has been called the “silent epidemic,” and older adults are the “silent population” within this epidemic. This study evaluates whether indicators of preinjury health and functioning are associated with risk of incident traumatic brain injury (TBI) with loss of consciousness (LOC) and to evaluate health‐related factors associated with mortality in individuals with incident TBI.

We consider a nonlinear Dirichlet problem driven by a nonhomogeneous differential operator plus an indefinite potential. In the reaction we have the competing effects of a singular term and of concave and convex nonlinearities. In this paper the concave term is parametric. We prove a bifurcation-type theorem describing the changes in the set of positive solutions as the positive parameter $lambda$ varies. This work continues our research published in arXiv:2004.12583, where $xi equiv 0 $ and in the reaction the parametric term is the singular one.

In this paper we collect some open set-theoretic problems that appear in the large-scale topology (called also Asymptology). In particular we ask problems about critical cardinalities of some special (large, indiscrete, inseparated) coarse structures on $omega$, about the interplay between properties of a coarse space and its Higson corona, about some special ultrafilters ($T$-points and cellular $T$-points) related to finitary coarse structures on $omega$, about partitions of coarse spaces into thin pieces, and also about coarse groups having some extremal properties.

We introduce primal and dual stochastic gradient oracle methods for decentralized convex optimization problems. Both for primal and dual oracles the proposed methods are optimal in terms of the number of communication steps. However, for all classes of the objective, the optimality in terms of the number of oracle calls per node in the class of methods with optimal number of communication steps takes place only up to a logarithmic factor and the notion of smoothness. By using mini-batching technique we show that all proposed methods with stochastic oracle can be additionally parallelized at each node.

Let $w$ be a word in $k$ variables. For a finite nilpotent group $G$, a conjecture of Amit states that $N_w(1) ge |G|^{k-1}$, where $N_w(1)$ is the number of $k$-tuples $(g_1,...,g_k)in G^{(k)}$ such that $w(g_1,...,g_k)=1$. Currently, this conjecture is known to be true for groups of nilpotency class 2. Here we consider a generalized version of Amit's conjecture, and prove that $N_w(g) ge |G|^{k-2}$, where $g$ is a $w$-value in $G$, for finite groups $G$ of odd order and nilpotency class 2. If $w$ is a word in two variables, we further show that $N_w(g) ge |G|$, where $g$ is a $w$-value in $G$ for finite groups $G$ of nilpotency class 2. In addition, for $p$ a prime, we show that finite $p$-groups $G$, with two distinct irreducible complex character degrees, satisfy the generalized Amit conjecture for words $w_k =[x_1,y_1]...[x_k,y_k]$ with $k$ a natural number; that is, for $g$ a $w_k$-value in $G$ we have $N_{w_k}(g) ge |G|^{2k-1}$.

Finally, we discuss the related group properties of being rational and chiral, and show that every finite group of nilpotency class 2 is rational.

We consider the most general class of linear inhomogeneous boundary-value problems for systems of ordinary differential equations of an arbitrary order whose solutions and right-hand sides belong to appropriate Sobolev spaces. For parameter-dependent problems from this class, we prove a constructive criterion for their solutions to be continuous in the Sobolev space with respect to the parameter. We also prove a two-sided estimate for the degree of convergence of these solutions to the solution of the nonperturbed problem.

Our goal in this article is to study the global Lorentz estimates for gradient of weak solutions to $p$-Laplace double obstacle problems involving the Schr"odinger term: $-Delta_p u + mathbb{V}|u|^{p-2}u$ with bound constraints $psi_1 le u le psi_2$ in non-smooth domains. This problem has its own interest in mathematics, engineering, physics and other branches of science. Our approach makes a novel connection between the study of Calder'on-Zygmund theory for nonlinear Schr"odinger type equations and variational inequalities for double obstacle problems.

We study the language universality problem for One-Counter Nets, also known as 1-dimensional Vector Addition Systems with States (1-VASS), parameterized either with an initial counter value, or with an upper bound on the allowed counter value during runs. The language accepted by an OCN (defined by reaching a final control state) is monotone in both parameters. This yields two natural questions: 1) Does there exist an initial counter value that makes the language universal? 2) Does there exist a sufficiently high ceiling so that the bounded language is universal? Despite the fact that unparameterized universality is Ackermann-complete and that these problems seem to reduce to checking basic structural properties of the underlying automaton, we show that in fact both problems are undecidable. We also look into the complexities of the problems for several decidable subclasses, namely for unambiguous, and deterministic systems, and for those over a single-letter alphabet.

In this paper we analyze a continuous version of the maximal covering location problem, in which the facilities are required to be interconnected by means of a graph structure in which two facilities are allowed to be linked if a given distance is not exceed. We provide a mathematical programming framework for the problem and different resolution strategies. First, we propose a Mixed Integer Non Linear Programming formulation, and derive properties of the problem that allow us to project the continuous variables out avoiding the nonlinear constraints, resulting in an equivalent pure integer programming formulation. Since the number of constraints in the integer programming formulation is large and the constraints are, in general, difficult to handle, we propose two branch-&-cut approaches that avoid the complete enumeration of the constraints resulting in more efficient procedures. We report the results of an extensive battery of computational experiments comparing the performance of the different approaches.

The Cannabis Issue As we look ahead to sunnier days, few things are as satisfying as a scoop of nice, cold ice cream.…

Solving computational problems may include generating a logic circuit representation of the computational problem, encoding the logic circuit representation as a discrete optimization problem, and solving the discrete optimization problem using a quantum processor. Output(s) of the logic circuit representation may be clamped such that the solving involves effectively executing the logic circuit representation in reverse to determine input(s) that corresponds to the clamped output(s). The representation may be of a multiplication circuit. The discrete optimization problem may be composed of a set of miniature optimization problems, where each miniature optimization problem encodes a respective logic gate from the logic circuit representation. A multiplication circuit may employ binary representations of factors, and these binary representations may be decomposed to reduce the total number of variables required to represent the multiplication circuit.

A computing method includes accepting a definition of a computing task, which includes multiple Processing Elements (PEs) having execution dependencies. The computing task is compiled for concurrent execution on a multiprocessor device, by arranging the PEs in a series of two or more invocations of the multiprocessor device, including assigning the PEs to the invocations depending on the execution dependencies. The multiprocessor device is invoked to run software code that executes the series of the invocations, so as to produce a result of the computing task.

Ohio is among the top states for several agricultural crops and for food production and processing. But while farming is considered an essential business under the various shutdown orders, it's a tough time for those who run the state's 76,000 farms. Statehouse correspondent Jo Ingles has more.

SFA vice-president Mike Mulraney believes it would be “foolhardy” to dismiss the chances of any of Scotland’s major clubs going out of business due to the Covid-19 pandemic.

Tech companies in Silicon Valley are under the microscope for not living up to their idealistic pledges to save the world. On this week’s episode of Reveal, we investigate companies on the cutting edge that are struggling to solve some old-fashioned problems: Worker safety at Tesla, and diversity at Google and beyond.

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Victoria's one-stop shop for all things to do with fines has been crippled by serious IT issues. So what's behind the multi-million-dollar problem, and what does it mean for people facing a payment deadline?

Labor's Home Affairs spokesperson Kristina Keneally has sparked controversy after declaring the COVID-19 crisis should force a revamp of the temporary migration program.

Tasmania is known for being clean and green, but Eva Pagett can't drink her tank water because it's contaminated with lead.

They completed less than two in three peak services, but electric buses are still a "viable alternative" for Canberra according to the ACT's Transport Minister.

Whether it's poor merging or illegally remaining in the overtaking lane, drivers who break the law and behave badly are contributing to road congestion in Queensland, experts say.

Football loves a sugar hit and the tabloid frenzy created by images of Usain Bolt in a Mariners shirt had the capacity to give the entire A-League Type 2 diabetes. But the FFA was right not to fund his Central Coast trial, Richard Hinds writes.

Children as young as 10 years old are being routinely strip searched in juvenile detention in NSW with minimal or no contraband found, according to new data, and former inmates claim the searches trigger mental illness issues.

It seems like the SHPAMEE feed was not updating correctly. This issue has now been resolved. Please let us know if you are still experiencing problems with the SHPAMEE feed.

Dear Amy: I am 63 and my husband (of six years) is 67. He drinks every night. Most nights he drinks to the point of stumbling, and not recalling what he says or does.

Giant-scale physics experiments are increasingly reliant on big data and complex algorithms fed into powerful computers, and managing this multiplying mass of data presents its own unique challenges. To better prepare for this data deluge posed by next-generation upgrades and new experiments, physicists are turning to the fledgling field of quantum computing.

Club Players Association chairman Micheál Briody accepts that counties will have to greatly alter the structure of club competitions if a window for playing does become available later this year.

Some of you might have noticed that our Facebook Feeds generator can right now generate only RSS feeds of your own Facebook pages..

The post Facebook Feeds Generator Is Experiencing Problems appeared first on RSSground.com.

By effectively buying out MSG's opposition Ballmer would clear a significant obstacle in the path of starting construction on a new arena for the Clippers.

If you don’t know what capital gains indexing to inflation means, you probably wouldn’t benefit from it.

velocityconf: RT @OReillyAnimals Advice, please! Elephant Listening Project asks for ideas/solutions/help with 3 practical problems http://t.co/Y90YP3maoz

8 January 2020 , Volume 96, Number 1

Research Event

Event participants

TJ Pempel, Jack M. Forcey Professor, Department of Political Science, University of California, Berkeley
Chair: John Swenson-Wright, Head, Asia Programme, Chatham House

A. A. Vladimirov
Trans. Moscow Math. Soc. 80 (2020), 211-219.
Abstract, references and article information

V. A. Sadovnichii, Ya. T. Sultanaev and A. M. Akhtyamov
Trans. Moscow Math. Soc. 80 (2020), 123-131.
Abstract, references and article information

S. A. Nazarov
Trans. Moscow Math. Soc. 80 (2020), 1-51.
Abstract, references and article information

8 January 2020 , Volume 96, Number 1

Takahito Kashiwabara and Tomoya Kemmochi
Math. Comp. 89 (2020), 1647-1679.
Abstract, references and article information

C. De Filippis and G. Mingione
St. Petersburg Math. J. 31 (2020), 455-477.
Abstract, references and article information