Riho Terras was an Estonian-American mathematician renowned for his contributions to number theory, particularly for the Terras theorem related to the Collatz conjecture. Born in Tartu, Estonia, he emigrated to the United States in 1951 and earned his PhD in mathematics from the University of Illinois Urbana-Champaign in 1970. His work established significant bounds for the Collatz conjecture, asserting it holds for 'almost all' numbers. A recipient of the Milton Abramowitz award in 1965, he married fellow mathematician Audrey Terras, furthering a legacy in mathematical research.
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Time Zone - Europe/Tallinn (2:0 E)
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Meaning of the name - Riho
The exact meaning of Riho is uncertain, but it is often associated with 'abundance' or 'prosperity,' possibly stemming from the Japanese word 'ri,' meaning 'rich.'
Read Full Riho Name AnalysisJune 13, 1939 Facts
Generation Group
Riho Terras belongs to the Silent Generation group.
Place of Birth: Tartu
Place of Death: San Diego
Educated At: University of Maryland | University of Illinois at Urbana–Champaign
Occupation: mathematician
Spouses: Audrey Terras
Employers: University of Puerto Rico at Mayaguez | University of California, San Diego
Awards Received: Abramowitz Award
Astrology Analysis
Ephemeris for June 13, 1939
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on June 13, 2024 | Secondary Progressions for June 13, 2024 |
|---|---|---|---|
| Sun | 21 Gemini 29 | 22 Gemini 53 | 12 Virgo 54 |
| Moon | 28 Aries 25 | 14 Virgo 10 | 7 Gemini 27 |
| Mercury | 28 Gemini 51 | 21 Gemini 19 | 28 Leo 37 |
| Venus | 28 Taurus 46 | 25 Gemini 17 | 13 Virgo 3 |
| Mars | 4 Aquarius 9 | 3 Taurus 8 | 25 Capricorn 7 |
| Jupiter | 5 Aries 26 | 4 Gemini 17 | 6 Aries 24 |
| Saturn | 28 Aries 20 | 19 Pisces 7 | 0 Taurus 57 |
| Uranus | 19 Taurus 48 | 24 Taurus 53 | 21 Taurus 57 |
| Neptune | 20 Virgo 35 | 29 Pisces 50 | 22 Virgo 41 |
| Pluto | 29 Cancer 59 | 1 Aquarius 42 | 2 Leo 12 |
| Rahu | 6 Scorpio 13 | 12 Aries 10 | 1 Scorpio 43 |
| Ketu | 6 Taurus 13 | 12 Libra 10 | 1 Taurus 43 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
