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From geodesic extrapolation to a variational BDF2 scheme for Wasserstein gradient flows

Thomas O. Gallouët, Andrea Natale and Gabriele Todeschi
Math. Comp. 93 (), 2769-2810.
Abstract, references and article information





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Error analysis of second-order local time integration methods for discontinuous Galerkin discretizations of linear wave equations

Constantin Carle and Marlis Hochbruck
Math. Comp. 93 (), 2611-2641.
Abstract, references and article information




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High-order splitting finite element methods for the subdiffusion equation with limited smoothing property

Buyang Li, Zongze Yang and Zhi Zhou
Math. Comp. 93 (), 2557-2586.
Abstract, references and article information




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Describing Dryland Vegetation Patterns

Math is often described as the science of patterns, which makes it a natural subject to help in the study of the underlying causes of patterns found in nature, for example, bands of vegetation that often occur on gently sloped terrains in certain near-desert ecosystems worldwide. We are starting to learn more about these bands' common properties by using mathematical models built on data, such as rainfall totals and the curvature of the terrain. Mary Silber talks about these mathematical models of vegetation bands.




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Deblurring Images

Malena Espanol explains how she and others use linear algebra to correct blurry images. Imagine snapping a quick picture of a flying bird. The image is likely to come out blurry. But thanks to mathematics, you might be able to use software to improve the photo. Scientists often deal with blurry pictures, too. Linear algebra and clever numerical methods allow researchers to fix imperfect photos in medical imaging, astronomy, and more. In a computer, the pixels that make up an image can be represented as a column of numbers called a vector. Blurring happens when the light meant for each pixel spills into the adjacent pixels, changing the numbers in a way that can be mathematically represented as an enormous matrix. But knowing that matrix is not enough if you want to reconstruct the original (non-blurry) image.




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Natural Resources & Economic Development - 11/14/2024

Time: 10:00 AM, Location: E1.012 (Hearing Room)




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Mathematical Analyses of Decisions, Voting and Games

Michael A. Jones, David McCune and Jennifer M. Wilson, editors. American Mathematical Society, 2024, CONM, volume 795, approx. 208 pp. ISBN: 978-1-4704-6978-8 (print), 978-1-4704-7608-3 (online).

This volume contains the proceedings of the virtual AMS Special Session on Mathematics of Decisions, Elections and Games, held on April 8,...




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Recent Developments in Fractal Geometry and Dynamical Systems

Sangita Jha, Mrinal Kanti Roychowdhury and Saurabh Verma, editors. American Mathematical Society, 2024, CONM, volume 797, approx. 268 pp. ISBN: 978-1-4704-7216-0 (print), 978-1-4704-7610-6 (online).

This volume contains the proceedings of the virtual AMS Special Session on Fractal Geometry and Dynamical Systems, held from May 14–15,...




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Deformation of Artinian Algebras and Jordan Type

Anthony Iarrobino, Pedro Macias Marques, Maria Evelina Rossi and Jean Vallès, editors. American Mathematical Society, 2024, CONM, volume 805, approx. 252 pp. ISBN: 978-1-4704-7356-3 (print), 978-1-4704-7665-6 (online).

This volume contains the proceedings of the AMS-EMS-SMF Special Session on Deformations of Artinian Algebras and Jordan Type, held July 18–22,...





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Degenerate complex Monge-Ampère type equations on compact Hermitian manifolds and applications

Yinji Li, Zhiwei Wang and Xiangyu Zhou
Trans. Amer. Math. Soc. 377 (), 5947-5992.
Abstract, references and article information








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Strong blocking sets and minimal codes from expander graphs

Noga Alon, Anurag Bishnoi, Shagnik Das and Alessandro Neri
Trans. Amer. Math. Soc. 377 (), 5389-5410.
Abstract, references and article information





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LEGO The Batman 2004 D.A.V.E. Rooftop Scene GRADED

bradders1999 posted a photo:

The MATRIX-Style colour grading version.

Minifigures made, photographed and edited by me.




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LEGO Classic Space: the robot final rebellion on the capital planet ousts the federation rule and replace with a techno republic and dictatorship (the final episode (for a while)) (AFOL toy hobby photography with droids, police and minifigures city MOC

dannyhennesy posted a photo:

On the Capital planet the rebellious droids had followed maily the Bat-Bot, but as time progressed his circuits had gone all mushy at 780 years or so without maintenance…

Several splinter groups all with their local bot leaders emerged such as the Che-bot, the traffic-light-robot and the Butt-bot, but none of these collected enough sentient circuits to call themselves a popular (or Animata) mass movement!

That was until a cyborg came along, one known as Jones, a long time prisoner and terrorist, his easy solutions to every problem rang well in the masses' auditory circuits!!!

His slogans and simple rhetoric were simple enough for the simple traffic-light to comprehend and cheer!

His language was full of hate towards the organics and especially the humans who were the most common races among the ruling class of the federation!!!

Despite being a “Fleshie” himself his message collected the angry enslaved
bot community by only weeks all rebellious robots except for a few fringe loonies had forgotten the old leaders…

One morning at Jones gave the signal…

All over the capital planet hordes and swarms of any form of mechanical sentient beings attacked first the police stations, then the Company boards running the planet and the federation as well as their starfleet…

Many died, especially the low level police and army! Many mechanicals died too, but their ranks were soon filled by Mutant fleshie allies of the lower levels who hated the Federation feudal society and upper classes as much as their technological allies…

The Federation state apparatus and ruling class, most of their fleet army fled when they knew the game was up, they activated the emergency escape plan and whole city blocks with important factories, administrational units, valuable assets and so on separated from the capital by hidden rocket engines and homed in their course to Mars…

On Mars the federation regrouped and formed their new society…

On the Capital planet, the robots proclaimed the first Techno-republic of the advanced inorganic civilization, the low level fleshies left behind, became slaves and their mutant allies got to rule their own minute chiefdoms as protectorates under the Techno-republic…

Jones was now the undisputed ruler of the capital planet, but the victory was a pyrros one since, all important buildings, all of value was now one Mars!

But as Jones put it:

Our proud race the Techno-species didn’t need the Fleshies administration, their infrastructure, their spaceships…

We shall start from scratch, with a new administration, a new order, every droid shall work at 4x speed than they did during human oppression since now we are free and the fleshies shall work twice as hard than the Techno-Race, until we have breed enough new fleshies so they can do all work!

Our future is bright and shiny like glistering shiny metal!

The snapshot seen here is from the first police station attacked in sector 45-34v-ss-g the first one to fall according to official techno-history!

———————————————/
Designers note:

I am sad to say that this is the last episode in this years-spanning space series… At least for a while, I will still post LEGO hobby stuff here but without a storyline, perhaps small designs and builds… and occasionally a story when I feel like it!!!

I would like to thank all who had been in this journey of our heros, but it has taken far to much time and effort and since the state of the world is as it is, I am spiraling down in another depression, I must stop it before I reach the abyss, so I have remove some stress out of my equation… I ended it in a cliffhanger so I can easily restart it when my mental health improves… I hope that won’t be forever???

I would love if someone used my characters or ideas, please send me a link if you do, I would love to read it or look at it!!!

But there will be more Lego, just in different format without long stories, I need to focus more on my art and to be honest that is the only time the mental pain eases, when I create!!!


Peace and Noise!

MushroomBrain a FOL




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Corgi Toys - Corgi Whizzwheels - Porsche 917 - Miniature Diecast Metal 1/43 Scale Model Motor Vehicle

firehouse.ie posted a photo:




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Corgi Toys - Corgi Whizzwheels - Porsche 917 - Miniature Diecast Metal 1/43 Scale Model Motor Vehicle

firehouse.ie posted a photo:




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Corgi Toys - Corgi Whizzwheels - Porsche 917 - Miniature Diecast Metal 1/43 Scale Model Motor Vehicle

firehouse.ie posted a photo:




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Tekno - The Irish Collection - Ref. 258 - Scania Articulated Truck - Glynns, Galway - Miniature Diecast Metal Scale Model Heavy Goods Vehicle

firehouse.ie posted a photo:




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Tekno - The Irish Collection - Ref. 258 - Scania Articulated Truck - Glynns, Galway - Miniature Diecast Metal Scale Model Heavy Goods Vehicle

firehouse.ie posted a photo:




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The history of model railroading the the Walthers 1970 O Scale Catalog

Tangled Bank posted a photo:




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The history of model railroading the the Walthers 1970 O Scale Catalog

Tangled Bank posted a photo:




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The history of model railroading the the Walthers 1970 O Scale Catalog

Tangled Bank posted a photo:




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Mum's 'ome-made froot cake, perfick fer pusslin'!

WendyHarris1955 posted a photo:

unbranded
plywood (basswood)
175 pieces
280 x 350 mm

TED: "I fink this lickle cat an' tiger pussle's cute. It's got pussycat wimsys an' it's shaped, so it's gonna be a keeper. The wobbly edj wuz a bit fiddly an' I 'ad to check the pikchur to make shure I 'ad it rite, but uvverwise it's a good'un.
That peece of cake I'm abowt to eat is Mum's 'ome-made froot cake spredd wiv butter - s'nice cuz she puts whisky in it. That's the cake, not the butter!"




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JOEPIE ON HIS WAY TO SAFE PETER FROM THE BAD BIRD || JOEPIE OP WEG OM PETER TE REDDEN VAN DE BOZE VOGEL

Anne-Miek Bibbe posted a photo:

JOEPIE: I'm almost there! I wish Uncle Jeroen was here, I'm a little, really just a little bit afraid of the dark.
-------------------------------------------------------------------------------------
JOEPIE: Ik ben bijna bij Peter! Ik wou dat oom Jeroen hier was, ik ben een beetje, echt maar een héél klein beetje bang in het donker.




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Asymptotic normality of estimators for all parameters in the Vasicek model by discrete observations

Olha Prykhodko and Kostiantyn Ralchenko
Theor. Probability and Math. Statist. 111 (), 123-135.
Abstract, references and article information




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Large deviations for perturbed Gaussian processes and logarithmic asymptotic estimates for some exit probabilities

Claudio Macci and Barbara Pacchiarotti
Theor. Probability and Math. Statist. 111 (), 21-43.
Abstract, references and article information




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A Markovian Gauss inequality for asymmetric deviations from the mode of symmetric unimodal distributions

Chris A.J. Klaassen
Theor. Probability and Math. Statist. 111 (), 9-19.
Abstract, references and article information












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Transmitting Data with Polar Codes




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Kennedy Awarded 2025 AMS Foias Prize

Matthew Kennedy, University of Waterloo, has been awarded the 2025 Ciprian Foias Prize in Operator Theory by the American Mathematical Society (AMS). Kennedy has been honored for his wide-ranging and innovative work on group C*-algebras, according to the citation.

Matthew Kennedy

From the citation

The 2025 Ciprian Foias Prize in Operator Theory is awarded to Matthew Kennedy for his wide-ranging and innovative work on group C*-algebras, which combines ideas from operator theory, topological dynamics and group theory, and has led to the solution of several open problems, in particular to characterizations of C*-simple groups and groups with the unique trace property. His paper “An intrinsic characterization of C*-simplicity,” on which the award is based, is the culmination of earlier work in collaboration with Kalantar, Breuillard, and Ozawa. The methods introduced in this work, namely an operator-algebraic theory of boundaries, have subsequently found applications in the study of more general classes of C*-algebras and to dynamical systems.

Response of Matthew Kennedy

I am deeply honored to receive the 2025 Ciprian Foias Prize in Operator Theory. I am thankful to all of my collaborators, and especially to my good friend Mehrdad Kalantar. The genesis of the theory of operator-algebraic boundaries is in my first paper with Mehrdad and, despite our excitement at the time, neither of us had any idea how far these ideas would take us. I am also thankful to my colleagues for their continuous encouragement, and in particular to Narutaka Ozawa for his insight and generosity. My work rests on the foundations built by many other mathematicians, and I want to acknowledge the visionary work of Furstenberg and Hamana, which has been so important to my career. Finally, I am grateful to my advisor, Ken Davidson, for his guidance over the years, and to my family and friends for their love and support. 

Biographical sketch of Matthew Kennedy

Matthew Kennedy studied at the University of Waterloo, where he obtained his PhD in 2011 under Ken Davidson. His thesis on free semigroup algebras earned the 2012 Doctoral Prize from the Canadian Mathematical Society. In 2011, he joined Carleton University as an assistant professor, and in 2015, he returned to the University of Waterloo, where he is now a full professor and university research chair. In 2020, he received the Israel Halperin Prize for outstanding work in operator algebras.

About the prize

The Ciprian Foias Prize in Operator Theory is awarded for notable work in operator theory published in a recognized, peer-reviewed venue during the preceding six years. The prize, awarded every three years, was established in 2020 in memory of Ciprian Foias (1933-2020) by colleagues and friends. He was an influential scholar in operator theory and fluid mechanics, a generous mentor, and an enthusiastic advocate of the mathematical community.

The 2025 prize will be presented at the 2025 Joint Mathematics Meetings in Seattle.

Learn more about the prize.

Contact: AMS Communications

*****

The American Mathematical Society is dedicated to advancing research and connecting the diverse global mathematical community through our publications, meetings and conferences, MathSciNet, professional services, advocacy, and awareness programs.




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AMS Day Member Celebration is Dec 2 - Join today!




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UC Irvine Wins 2025 AMS Award for an Exemplary Program in a Mathematics Department

The Math Community Educational Outreach (Math CEO) program at the University of California, Irvine (UCI) will receive the 2025 AMS Award for an Exemplary Program or Achievement in a Mathematics Department.

Founded in 2014, UCI’s Math CEO is an after-school math enrichment program aimed at increasing the number of talented students in STEM from diverse backgrounds by fostering mathematical exploration, mentor development, and community engagement.

Participants in the Math CEO program at University of California, Irvine
Credit: Jennifer Tran, Math CEO outreach assistant

From the citation

The University of California, Irvine (UCI) Math CEO program is recognized for its exceptional contributions to the mathematics community and society at large. Established in 2014 by professors Alessandra Pantano and Li-Sheng Tseng, Math CEO targets students from Title I middle schools, providing them with a high-quality after-school math enrichment program. This program brings middle-school students to the UCI campus to work in small groups with undergraduate mentors, many of whom are also from historically marginalized groups, to engage in challenging mathematical tasks and encourage exploration. 

From September 2019 to June 2024, Math CEO engaged a total of 1,221 youth, with 48.6% identifying as female. The ethnic background of the participants was predominantly Latinx (93.5%), with smaller representations of Asian, white, and multiethnic students. In the same five-year period, Math CEO engaged 553 undergraduate mentors, 62.2% of whom were female. The mentors’ ethnic backgrounds were diverse, with significant representation of Asian (52%) and Latinx (30%) students. The undergraduate mentors, many of whom pursue careers in education, receive training in culturally responsive teaching practices and equity in education, significantly impacting their professional development. In a post-survey, 52.3% of the undergraduate mentors expressed interest in teaching or working in education and 45.9% were likely to pursue professions working with children or families.

Recognizing the central role of families in supporting Latinx youth, Math CEO involves parents through bilingual workshops that enhance community awareness of college pathways and financial opportunities. 

Math CEO has been the foundation for numerous research projects in mathematics education, supported by NSF grants, leading to publications and program growth. The program’s success is evident in its expansion to high schools and other regions in Southern California, including a new branch at California State University, Dominguez Hills. Math CEO continues to make a substantial impact on underserved youth, demonstrating a model of systemic, reproducible change that can be implemented by others.

Response of Alessandra Pantano, UCI Math CEO

I am deeply honored to receive the AMS Award for an Exemplary Program in a Mathematics Department on behalf of the UCI Math CEO team. This wonderful award recognizes the work of many colleagues, graduate students, and undergraduate students in developing and delivering the UCI Math Community Educational Outreach (Math CEO) program. For over a decade, Math CEO has provided creative and culturally responsive math enrichment opportunities for hundreds of underprivileged middle-school students, many of which have since “graduated” to high school or even college. Leading this exceptional and dedicated team of volunteers has been the highest pride of my professional life. A special thanks to my partners-in-crime, Prof. Li-Sheng Tseng, codirector of Math CEO, and former graduate student Andres Forero Cuervo, academic coordinator for Math CEO: We could have never done this without you. I look forward to pushing this activity forward and continuing to dedicate my energy to help kids in our county find the way to express their potential – in math and in life! A big thanks to the colleagues who nominated us and to the AMS for recognizing our efforts.  

History of the program

The UC Irvine Math Community Educational Outreach (Math CEO) program was founded in 2014 by math faculty Alessandra Pantano and Li-Sheng Tseng in collaboration with Santa Ana Unified math teacher Jasmina Matasovic. The founders shared a belief that low standardized test scores in underserved communities do not reflect students’ interest and potential to succeed in STEM. Math CEO runs free, weekly, after-school math enrichment sessions, welcoming all youth regardless of math achievement. Starting with only 25 students from one middle school, the program has grown and engaged nearly two thousand students in all, from multiple school districts in Southern California.

About the award

The annual AMS Award for an Exemplary Program or Achievement in a Mathematics Department was established in 2004 and first given in 2006. This award recognizes a department which has distinguished itself by undertaking an unusual or particularly effective program of value to the mathematics community, internally or in relation to the rest of society. Departments of mathematical sciences in North America that offer at least a bachelor’s degree in mathematical sciences are eligible. The award amount is currently $5,000. The award will be presented at the 2025 Joint Mathematics Meetings in Seattle.

Learn more about the award and previous recipients.

Contact: AMS Communications.

*****

The American Mathematical Society is dedicated to advancing research and connecting the diverse global mathematical community through our publications, meetings and conferences, MathSciNet, professional services, advocacy, and awareness programs.
 




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Up to US to decide what to do with decommissioned HAWK missiles, Taiwan says




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US Navy destroyers unscathed after fighting off a complex attack of cruise and ballistic missiles and exploding drones




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COMAC says Air China is the first customer for C929 widebody jet




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Trump says he will nominate anti-'woke' Fox News host Pete Hegseth for defense secretary




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Warren Buffett Told Young Investors To Buy Homes Instead Of Stocks, Calling 30-Year Mortgages 'A Terrific Deal'