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Meet the Ukrainian Quantity Theorist Who Gained Math’s Highest Honor

In late February, simply weeks after Maryna Viazovska discovered she had received a Fields Medal—the best honor for a mathematician—Russian tanks and struggle planes started their assault on Ukraine, her homeland, and Kyiv, her hometown.

Viazovska not lived in Ukraine, however her household was nonetheless there. Her two sisters, a 9-year-old niece, and an 8-year-old nephew set out for Switzerland, the place Viazovska now lives. They first needed to wait two days for the visitors to let up; even then the drive west was painfully gradual. After spending a number of days in a stranger’s residence, awaiting their flip as struggle refugees, the 4 walked throughout the border one night time into Slovakia, went on to Budapest with assist from the Crimson Cross, then boarded a flight to Geneva. On March 4, they arrived in Lausanne, the place they stayed with Viazovska, her husband, her 13-year-old son and her 2-year-old daughter.

Viazovska’s dad and mom, grandmother, and different relations remained in Kyiv. As Russian tanks drew ever nearer to her dad and mom’ residence, Viazovska tried on daily basis to persuade them to go away. However her 85-year-old grandmother, who had skilled struggle and occupation as a baby throughout World Warfare II, refused, and her dad and mom wouldn’t depart her behind. Her grandmother “couldn’t think about she won’t die in Ukraine,” Viazovska stated, “as a result of she spent all her life there.”

In March, a Russian airstrike leveled the Antonov airplane manufacturing unit the place her father had labored within the waning years of the Soviet period; Viazovska had attended kindergarten close by. Happily for Viazovska’s household and different Kyiv residents, Russia shifted the main focus of its struggle effort to the Donbas area in jap Ukraine later that month. However the struggle isn’t over. Viazovska’s sisters spoke of mates who’ve needed to struggle, a few of whom have died.

Viazovska stated in Could that though the struggle and arithmetic exist in numerous components of her thoughts, she hadn’t gotten a lot analysis performed in current months. “I can not work after I’m in battle with someone or there may be some emotionally tough factor happening,” she stated.

On July 5, Viazovska accepted her Fields Medal on the Worldwide Congress of Mathematicians in Helsinki, Finland. The convention, organized by the Worldwide Mathematical Union each 4 years in live performance with the Fields Medal bulletins, had been set to happen in St. Petersburg, Russia, regardless of issues over the host nation’s human rights file, which prompted a boycott petition signed by over 400 mathematicians. However when Russia invaded Ukraine in February, the IMU pivoted to a digital ICM and moved the in-person award ceremony to Finland.

On the ceremony , the IMU cited Viazovska’s many mathematical accomplishments, specifically her proof that an association referred to as the E8 lattice is the densest packing of spheres in eight dimensions. She is simply the second lady to obtain this honor within the medal’s 86-year historical past. (Maryam Mirzakhani was the primary, in 2014.)

Like different Fields medalists, Viazovska “manages to do issues which are fully non-obvious that numerous individuals tried and did not do,” stated the mathematician Henry Cohn, who was requested to present the official ICM discuss celebrating her work. In contrast to others, he stated, “she does them by uncovering quite simple, pure, profound buildings, issues that no one anticipated and that no one else had been capable of finding.”

The Second By-product

The exact whereabouts of the École Polytechnique Fédérale de Lausanne is much from apparent exterior the EPFL metro station on a wet Could afternoon. Recognized in English because the Swiss Federal Institute of Know-how Lausanne—and in any language as a number one analysis college in math, physics, and engineering—it’s typically known as the MIT of Europe. On the finish of a dual-use lane for bicycles and pedestrians that geese underneath a small freeway, the idyllic indicators of campus life come into sight: large two-tier racks full of bicycles, modular structure befitting a sci-fi cityscape, and a central sq. lined with school rooms, eateries, and upbeat pupil posters. Past the sq. sits a contemporary library and pupil middle that rises and falls in three-dimensional curves, permitting college students in and out to stroll underneath and over one another. From beneath, the sky is seen via cylindrical shafts punched via the topology like Swiss cheese. A brief distance away, inside a kind of modular buildings, a professor with a safety entry card opens the orange double doorways resulting in the inside sanctum of the Math Division. Simply previous the portraits of Noether, Gauss, Klein, Dirichlet, Poincaré, Kovalevski, and Hilbert stands a inexperienced door merely labeled “Prof. Maryna Viazovska, Chaire d’Arithmétique.”

Viazovska videoconferencing with college students in her EPFL workplace.{Photograph}: Thomas Lin/Quanta Journal

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