The Riemann hypothesis is a famous unsolved problem in mathematics that deals with the distribution of prime numbers. It states that all non-trivial zeros of the Riemann zeta function have a real part of 1/2. The Poincaré conjecture, solved by Grigori Perelman in 2003, is a fundamental problem in topology that deals with the classification of three-dimensional shapes. It states that any simply connected, closed, three-dimensional manifold is homeomorphic to a three-dimensional sphere. Fermat's last theorem, proved by Andrew Wiles in 1994, is a famous problem in number theory that states that there are no three positive integers a, b, and c that satisfy the equation a^n + b^n = c^n for any integer value of n greater than 2. **

Menswear refers to clothing and accessories designed specifically for men. This includes a wide range of items such as suits, shirts, pants, jackets, ties, and shoes. Menswear can vary in style, from formal and professional to casual and sporty, and it is often influenced by current fashion trends and cultural norms. The menswear industry is constantly evolving, offering a diverse array of options for men to express their personal style and preferences. **

Henri Poincaré and others were able to be so productive despite only working 4 hours a day because they were highly focused and disciplined during those hours. They likely had a clear understanding of their priorities and were able to efficiently allocate their time to the most important tasks. Additionally, they may have had a deep passion for their work, which allowed them to be highly motivated and engaged during their limited work hours. Finally, they may have also been able to leverage their natural talents and intellectual abilities to make the most of their time. **

One can buy motorcycle clothing and accessories from specialty motorcycle shops, both in-store and online. These shops typically carry a wide range of protective gear, such as helmets, jackets, gloves, and boots, as well as accessories like saddlebags, tank bags, and communication devices. It is important to ensure that the clothing and accessories purchased meet safety standards and fit properly to provide maximum protection while riding. **

Fashion changes in clothing for a variety of reasons. One reason is cultural and societal shifts, as fashion often reflects the values and trends of a particular time period. Additionally, advancements in technology and manufacturing techniques can lead to new materials and styles becoming popular. Fashion is also influenced by the media, celebrities, and designers who constantly introduce new ideas and trends. Ultimately, fashion changes in clothing to keep up with the evolving tastes and preferences of consumers. **

Footwear refers to any type of garment worn on the feet, such as shoes, sandals, boots, and slippers. It is designed to provide protection and comfort for the feet while also serving as a fashion statement. Footwear comes in a variety of styles, materials, and designs to suit different activities and occasions. It plays a crucial role in supporting the feet and promoting overall foot health. **

As an AI, I do not wear clothing or accessories with fur trim. However, I understand that some people choose to wear fur-trimmed items for fashion or practical reasons. It's important to consider the ethical and environmental implications of using fur in fashion, and to make informed choices about the products we purchase and wear. **

Tokio Hotel offers a range of clothing and accessories, including t-shirts, hoodies, hats, and wristbands. Their merchandise often features the band's logo, album artwork, and other unique designs. Fans can find a variety of items to show their support for the band and express their personal style. **