Chapter 432: The First Vertical Glacier

In early April, Boston entered spring, and the temperature gradually rose, but there was still some chill in the air at night after the sun went down.

7:00 PM.

"Phew~ It's already April and it's still this cold..."

Xu Qingzhou pushed the door open, rubbed his hands twice, and threw the car keys into the shoe cabinet.

He had just returned from the MIT library.

Starting from late March, after spending more than ten days, he finally completed the improvement of the large value estimation of Dirichlet polynomials, proving that the real part of non-trivial zeros is located in the critical strip 0.48...

More precise than the estimates of Professor Maynard and the others, focusing the research focus within a narrower interval, avoiding non-directional exploration of the entire complex plane.

Compared to the development of the Riemann Hypothesis over these years, it could definitely be considered a breakthrough. If organized into a paper and thrown out, it could also be a deep-water bomb.

But no matter how you look at it, this kind of estimation still has an essential gap with the Riemann Hypothesis.

In other words, even if it continues to approach, even if the upper and lower bounds infinitely approach 1/2, between re(s)∈(0.4999, 0.5001), there could still be infinite counterexamples.

He struggled for this for a week continuously, with no progress.

Consequently, he could only go to the library to read books, hoping to find some clues from the research of his predecessors.

The difficulty of the Riemann Hypothesis was fully revealed at this moment.

This wasn't it—having been soaked in the library for four consecutive days, he had no ideas, and Xu Qingzhou himself was almost going crazy, falling into a state of autism.

It was just that no matter what method he used, it seemed he just couldn't see hope.

To the point of making people feel a bit desperate.

He now understood a bit why Professor Gu and the others were worried about hitting his confidence.

No wonder those mathematicians in the past would have doubts about this thing, just like the British mathematician Littlewood said: "If we could firmly believe that this hypothesis is wrong, life would be more comfortable."

Xu Qingzhou threw away the miscellaneous thoughts, changed into slippers. The living room light was on, proving Song Yao had already returned.

Er Miao walked around the living room with elegant little steps, jumped flexibly onto the sofa, then leaped lightly onto the table, inspected its territory, and planned to lie on the sofa for a nap.

Xu Qingzhou tilted his head and looked into the bedroom, and sure enough, he saw the school beauty folding clothes.

It wasn't that cold at home; the school beauty only wore a white sweater, paired with high-waisted jeans, perfectly setting off her figure.

Really good... Looking at his vivid and fragrant girlfriend, the fatigue of the day dissipated just like that.

Xu Qingzhou tiptoed, originally wanting to go over and grab a handful, but the school beauty turned around first, looking at him indifferently: "What do you want to do?"

She had long noticed this guy sneaking into the bedroom.

With this look, he definitely had no good intentions.

"Nothing..."

Xu Qingzhou laughed sheepishly. It was no fun being discovered. He folded clothes with Song Yao. "Came to help you. Didn't you say you were working overtime today? Why are you back early?"

The school beauty had been so busy during this time, needing to work on projects with Professor Morton and write her second paper. She strictly controlled staying up late, and now she often finished only at 12:00 midnight.

"Professor Morton had something urgent, gave me a half-day off... Can you fold them nicely? You'd better go out; I'll fold them myself." Song Yao was very disgusted.

"Don't, it's the last few pieces."

Xu Qingzhou's gaze fell on Song Yao's few small clothes, basically all belonging to the dark color system, and there was lace... And the panties, pink, hollowed out on top, and soft, compliant fabric underneath that was private...

Never tired of seeing them worn on the school beauty.

"Get out!"

Song Yao's face was stinky, and she kicked Xu Qingzhou out. The two had been together for three years, although not to the point of being shy, but looking at this guy's lecherous eyes, she felt inexplicably unhappy.

"It's not like I haven't touched them... Leaving immediately."

Xu Qingzhou muttered in a low voice and had already slipped away before Song Yao could take action.

On the desk, Er Miao was dozing off.

Xu Qingzhou came to the living room, scooped Er Miao into his arms, and having nothing to do, sat in Song Yao's seat.

On the left were Song Yao's books: *Intellectual Property Law*, *American Judicial System*, *Where Do Your Rights Come From? *, etc., and in economics, *American Economic Problems*, *Transaction Economics*...

He pulled out a book on microeconomics and opened it to kill time.

Er Miao struggled a few times at first, but now it started to droop its eyelids again.

On this side, Song Yao finished tidying up and came out. Looking at Xu Qingzhou, who was reading seriously, she couldn't help but go over and play with his hair. This guy had just had a haircut yesterday, and it felt crisp and numb, very comfortable.

She asked: "Stayed in the library for two days, any ideas?"

Song Yao knew Xu Qingzhou had been lost these few days, having been wandering in the library for a week, leaving early and returning late every day. Although he cheered up to tease her when he returned, she could still feel Xu Qingzhou's low mood, which was even more terrifying than when he was buried in calculations at home a while ago.

"No, it doesn't look like there's much to do in mathematics; now I can only pin my hopes on physics," Xu Qingzhou sighed and said.

"If your brain cells aren't enough, don't make things difficult for yourself."

"I suspect you're scolding me... If you didn't play with my head, I'd be even happier," Xu Qingzhou tilted his head, his gaze passing through her quite sizable chest and falling on her face.

Her chin was round, long eyelashes were clearly visible under the light, her eyes were crystal clear, and her perfect facial features were nothing to say in terms of appearance.

Beauties are indeed beautiful from all 360 degrees without dead ends.

"You also touch my feet," Song Yao reminded, looking down at the face that was asking for a beating.

"That's different." Xu Qingzhou sat up straight, put Er Miao down, and continued to enjoy Song Yao's head massage.

Song Yao's willow eyebrows stood up, and she added coldly: "And kissed my feet..."

"..."

"You can touch them."

Xu Qingzhou felt this topic couldn't be chatted about anymore. He leaned back in the chair and closed his eyes to rest his brain. Actually, he understood a bit why Er Miao started to squint and sleep when being stroked.

It was really quite comfortable.

Song Yao asked: "When you just entered the room, what did you want to do?"

"Help you fold clothes."

"Only that?"

"Otherwise?" Xu Qingzhou answered innocently.

"Heh."

Xu Qingzhou said lazily: "Don't 'heh', I was just thinking, I didn't really do anything."

"Xu Qingzhou, can't your brain think of something else?" Song Yao played with Xu Qingzhou's head, helpless toward this boyfriend who was always thinking of lewd things.

Xu Qingzhou's eyes lit up: "You mean, I can think of something else?"

The school beauty was in her special period these few days, so that only meant heh heh...

Full of motivation.

"Can."

Song Yao hugged Xu Qingzhou from behind, the exhaled breath hitting his ear, making Xu Qingzhou let out a "hiss" of breath.

Before he could experience the girl's gentleness, he heard her say softly: "You can also think about... where to bury yourself tonight."

"..."

Besides being good-looking, the school beauty was as ruthless as ever.

(End of chapter)